Patent Application
20240325814
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
This invention relates to exercise equipment for strength training and weight-assisted cardio exercise, such as dumbbells and barbells.
Dumbbells that can attach varying masses are known. In some cases, plates can be held in place with removable cuffs that use friction or other forces to hold the plates on the ends of the dumbbells. In other cases, complicated mechanisms allow an athlete to select a desired mass in the form of specially-designed plates or other structures. However, known systems may take considerable time and effort to change the amount of mass attached to a dumbbell between sets and between exercises. Dumbbell technology can use improvement.
Dumbbell and barbell technology that fits easily and unobtrusively into a home or office, and yet can afford a wide variety of weights deployed in a broad range of exercises, is needed in the marketplace. The recent pandemic has thrown considerable doubt on the future of large gyms where numerous people gather. The increased cardiopulmonary demands of strength training and weight-assisted cardio exercise mean that traditional gyms, with their high turnover of clientele, present an exceptionally risky environment for the transmission of upper respiratory illnesses such as colds, the flu, and COVID-19. Thus, sprawling arrays of dumbbells and barbells, the hallmark of a well-equipped gym, will be off-limits to those who wish to socially distance while exercising. Compact and versatile systems for strength training and weight-assisted cardio exercise are needed for that additional reason.
Unexpectedly, Applicant has invented new dumbbell and barbell technology. In some embodiments, dumbbell systems for exercising with an incrementally-variable mass of weights appear, one such system comprising: a grip, comprising a handle portion and a weight-selecting portion; a weight-engagement device, comprising a plurality of weight-engagement ports configured to receive the weight-selecting portion of the grip; a plurality of weight plates, each weight plate in the plurality of weight plates comprising a grip-engagement port configured to receive the weight-selecting portion of the grip, wherein each grip-engagement port aligns with a weight-engagement port in the plurality of weight-engagement ports; wherein the plurality of weight plates provides the incrementally-variable mass of weights.
Other embodiments provide telescoping dumbbell systems for exercising with an incrementally-expandable mass of weights, one such system comprising a cylindrical base comprising a grab and optionally a circular bearing race rotationally supporting the grab; a base weight selecting pin slidably attached to the cylindrical base; a first plurality of nested weight cylinders, wherein each weight cylinder in the first plurality of nested weight cylinders comprises a first pin engagement port adapted to receive the base weight selecting pin; wherein each first pin engagement port of each weight cylinder is adapted to align with the first pin engagement ports of the other weight cylinders in the first plurality of nested weight cylinders; and wherein the first plurality of nested weight cylinders provides the incrementally-expandable mass of weights.
Still other embodiments provide dumbbell systems for exercising with an incrementally-variable mass of weights, one such embodiment comprising a grip comprising a handle portion optionally enclosing a pin-receiving portion; a weight-engagement device having a first end opposite a second end, comprising a plurality of weight-engagement ports dispersed between the first end and the second end, each weight-engagement port in the plurality of weight-engagement ports being configured to receive a weight-retaining pin; a first plurality of weight plates, each weight plate in the first plurality of weight plates comprising at least one grip-engagement port configured to also receive the weight-retaining pin, wherein each of the at least one grip-engagement port is adapted to align with a weight-engagement port in the plurality of weight-engagement ports; wherein the plurality of weight plates provides the incrementally-variable mass of weights.
Further embodiments relate to dumbbell systems for exercising with an incrementally-variable mass of weights, one such system comprising one or more weight engagement rods, each comprising a shaft having a top tip and a bottom tip, and a screw thread along at least a portion of the shaft; a hold comprising a gripping portion adjacent one or more rod engagement openings, each of the one or more rod engagement openings comprising a complementary screw thread for engaging the screw thread of the one or more weight engagement rods; and a plurality of weight plates, each weight plate comprising one or more rod engagement ports for receiving the one or more weight engagement rods, and an opening dimensioned to receive a human hand grasping the hold.
Yet additional embodiments provide a dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
Still other embodiments provide dumbbells of unique design and functionality. One such dumbbell comprises a grip; a weight plate permanently affixed to the grip, the weight plate defining an opening about the grip sufficient in size for a human hand to grasp the grip; and two or more stacking structures on the weight plate. Optionally, such a dumbbell includes a filling port adapted to receive and retain at least one filling material to establish a desired mass in the dumbbell.
In some further embodiments, barbell systems appear, such as, for example, a barbell system for exercising with an incrementally-variable mass of weights, comprising: a barbell comprising a first barbell end opposite a second barbell end, and a gripping portion disposed between the first barbell end and the second barbell end; wherein the first barbell end is configured to engage the dumbbell systems described herein, the dumbbells described herein, the telescoping dumbbell systems described herein, or a combination thereof; and wherein the second barbell end is configured to engage the dumbbell systems described herein, the dumbbells described herein, the telescoping dumbbell systems described herein, or a combination thereof.
While the disclosure provides certain specific embodiments, the invention is not limited to those embodiments. A person of ordinary skill will appreciate from the description herein that modifications can be made to the described embodiments and therefore that the specification is broader in scope than the described embodiments. All examples are therefore non-limiting.
As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various forms. The figures are not necessarily to scale, and some features may be exaggerated to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of ordinary skill in the art to which this disclosure belongs. In the event that there is a plurality of definitions for a term herein, those in this disclosure prevail unless stated otherwise.
Wherever the phrase “for example,” “such as,” “including” and the like are used herein, the phrase “and without limitation” is understood to follow unless explicitly stated otherwise. Similarly “an example,” “exemplary” and the like are understood to be non-limiting.
The term “substantially” allows for deviations from the descriptor that don't negatively impact the intended purpose. Descriptive terms are understood to be modified by the term “substantially” even if the word “substantially” is not explicitly recited.
The term “about” when used in connection with a numerical value refers to the actual given value, and to the approximation to such given value that would reasonably be inferred by one of ordinary skill in the art, including approximations due to the experimental and or measurement conditions for such given value.
The terms “comprising” and “including” and “having” and “involving” (and similarly “comprises”, “includes,” “has,” and “involves”) and the like are used interchangeably and have the same meaning. Specifically, each of the terms is defined consistent with the common United States patent law definition of “comprising” and is therefore interpreted to be an open term meaning “at least the following,” and is also interpreted not to exclude additional features, limitations, aspects, etc. Thus, for example, “a device having components a, b, and c” means that the device includes at least components a, b and c. Similarly, the phrase: “a method involving steps a, b, and c” means that the method includes at least steps a, b, and c.
Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise”, “comprising”, and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to”.
Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field.
It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
As stated before, some embodiments of the present invention provide a dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
As used herein, “weights” indicates structures having mass designed to provide a gravity-assisted resistance against which a person can exercise. In some cases, “weights” refers to weight plates. Weights and weight plates can appear in any suitable increment. One pound, 5 pounds, 10 pounds, 20 pounds, 25 pounds, 50 pounds, 100 pounds can be mentioned as suitable increments. One kilogram, 5 kg 10 kg, 20 kg 25 kg, 50 kg, even 100 kilograms also can be mentioned as suitable increments. Fractions of pounds and fractions of kilograms also can be used, such as, for example, 2.5-pound increments. A 2.5 pound increment provides weights at, for example, 2.5 pounds, 5 pounds, 7.5 pounds, 10 pounds, 12.5 pounds, and 15 pounds. Increments need not be uniform. For example, a plurality of weight plates could have a smaller increment between the first weight plates to be used in a plurality, but a larger increment between the last weight plates in the plurality. To illustrate, a plurality of weight plates could have weight plates weighing 2.5 pounds, 5 pounds, 10 pounds, 20 pounds, and 30 pounds.
Any suitable materials can be used in the dumbbell systems, dumbbells, and the telescoping dumbbell systems of the present invention. For example, the handle portion of the grip may include a polymer foam, rubbery material, or a combination thereof. In that way, the grip can assist an athlete to hang onto the grip during exercise. For another example, weight plates can include any suitable metal, such as, for example, iron, lead, aluminum, titanium, copper, alloys thereof, and combinations thereof. Various steels may be mentioned in particular. Exotic but high-density metals such as gold and silver also may be used. High-strength plastics such as, for example, high density polyethylenes, nylons, polyurethanes, and the like can be used to enclose another substance having mass in the form of a weight plate. Sand-filled and water-filled weight plates may be mentioned in this regard. When water-filled weight plates are used, the dumbbell system can be transported with the weight plates empty, for example when an athlete is traveling. When the athlete reaches her destination, she can fill the weight plates with water and exercise against the increased mass.
Certain embodiments allow for a dumbbell comprising a grip a weight plate permanently affixed to the grip, the weight plate defining an opening about the grip sufficient in size for a human hand to grasp the grip, and two or more stacking structures on the weight plate. Optionally, such a dumbbell includes a filling port adapted to receive and retain at least one filling material to establish a desired mass in the dumbbell. Any suitable filling port technology can be used. For example, a screw cap can allow access to the interior of the dumbbell. In another example, a snap cap can be pried off, a filling material can be added to the dumbbell, and the snap cap can be re-affixed to the filling port. Any suitable filling material can be used. in addition to the sand and water mentioned above, powder, pellets, pebbles, liquids, and combinations thereof may be mentioned. The powder, pellets, pebbles, and liquids can include any suitable substances. Metal ball bearings, ceramic pellets, rocks, glass beads, polymer pellets, oil, water, sand, and combinations thereof can be used. One pair of barbells can be filled with sand, for example, and another pair of barbells can have water added to the sand.
A grip allows an athlete to hold and exercise with the dumbbell system. A grip, through its weight-selecting portion or with a weight-retaining pin, also interfaces with the weight-engagement device and selects one or more weight plates from the plurality of weight plates. Any suitable weight-selecting portion can be used. In some cases, the weight-selecting portion of the grip comprises a single retractable rod configured to selectively retract into the handle portion and to selectively emerge from the handle portion to engage a chosen weight-engagement port in the plurality of weight-engagement ports and a grip-engagement port aligned with the chosen weight-engagement port. The weight-selecting portion, such as the single retractable rod, can be operated according to any suitable mechanism. In some cases, the single retractable rod is spring-loaded. In other cases, the single retractable rod is electromagnetically activated. Electromagnetic activation indicates the use of any suitable mechanism. One or more solenoids or electric motors can be used to push and pull a rod as the weight-selecting portion in and out of the handle portion of the grip. In still other cases, the single retractable rod can be activated by rotating a rod deployment mechanism relative to the handle portion. One way to do that is to employ a screw thread on the single retractable rod with a rotating bezel on the handle portion of the grip. Rotating the bezel in one direction or another engages the screw thread, propelling or retracting the single retractable rod from the handle portion. In still other cases, the weight-selecting portion of the grip comprises dual retractable rods coaxially arranged and configured to selectively retract into the handle portion and to selectively emerge from the handle portion to engage a chosen pair of weight-engagement ports in the plurality of weight-engagement ports and a pair of grip-engagement ports aligned with the chosen pair of weight-engagement ports. As used herein, “rod” includes any suitable structure, such as, for example, a solid cylinder, a hollow tube, a cylinder or tube with screw threading or other structure or texture affixed thereon, and combinations thereof. In some cases, a grip comprises only a handle portion, and the weight-selecting portion function is replaced by a weight-retaining pin or two.
The dumbbell systems described herein further comprise at least one weight-engagement device. By function, the weight-engagement device provides an interface between the grip and the plurality of weight plates. To an extent, the weight-engagement device also protects the athlete's hand, and organizes the weight plates. Certain instances provide a weight-engagement device having a cylindrical device shape. The cylindrical device shape accommodates a circular opening in the weight plates. In some cases, a weight engagement device can include one or more weight-stabilizing protrusions that engage corresponding weight-stabilizing recesses in weight plates. The weight-engagement ports can be dispersed on the weight stabilizing protrusions.
In some cases, a dumbbell system can include to weight engagement devices that slide one inside of the other. The inner weight engagement device has inner weight-engagement ports that can align with outer weight-engagement ports on the outer weight engagement device. The grip, inner weight engagement device, outer weight engagement device, and one or more weight plates can be configured in a wide variety of ways to afford many different exercises. Usually, the inner weight engagement device is dimensioned so that a human hand can fit inside to grasp the grip. The outer weight engagement device accordingly is dimensioned to fit over the inner weight engagement device. The position of the inner weight engagement device relative to the outer weight engagement device can be secured, for example, when an inner weight-engagement port aligns with an outer weight-engagement port, and a weight-retaining pin, a grip-retaining pin, or even a secondary weight-retaining pin (if there is a second weight plate surrounding a first weight plate) can enter the aligned weight engagement ports. In the presence of a plurality of weight-engagement ports, that position can be changed incrementally, as desired. Any desired inner weight-engagement port is aligned with any desired outer weight-engagement port as the inner weight-engagement device slides into the outer weight engagement device, to configure the system for a variety of exercise experiences. In this way, it can be said that the inner weight engagement device is adapted to fit incrementally within the outer weight engagement device.
The weight plates used in the dumbbell systems of the present invention can have any suitable shape. In some cases, each weight plate in the plurality of weight plates defines a cylindrical weight shape.
The present invention also provides telescoping dumbbell systems for exercising with an incrementally-expandable mass of weights. Such a system might include a cylindrical base comprising a grab and optionally a circular bearing race rotationally supporting the grab; a base weight selecting pin slidably attached to the cylindrical base; a first plurality of nested weight cylinders, wherein each weight cylinder in the first plurality of nested weight cylinders comprises a first pin engagement port adapted to receive the base weight selecting pin; wherein each first pin engagement port of each weight cylinder is adapted to align with the first pin engagement ports of the other weight cylinders in the first plurality of nested weight cylinders; and wherein the first plurality of nested weight cylinders provides the incrementally-expandable mass of weights.
As used herein, a dumbbell system “telescopes” when a first plurality of nested weight cylinders can fit within and engage a second plurality of nested weight cylinders. Similarly, weight cylinders are “nested” when one weight cylinder fits inside and engages a second weight cylinder. Engagement ports and other holes “align” when a pin can be sent into them. This is useful, for example, when more than one nested weight plate is desired for an exercise, and a base weight selecting pin slides into the aligned engagement ports. “Weight cylinders” need not be perfectly cylindrical in all respects. Cylindrical “weight cylinders” are shown in the drawings, but the exterior shape of a weight cylinder is not critical, provided that one weight cylinder can nest within another in the plurality of nested weight cylinders. A weight cylinder can have any suitable shape with that caveat. Oval, oblong, rectangular, square, polygonal, and even irregular shapes may be mentioned.
As in the dumbbell systems described above and below, any suitable increment can be used for the telescoping dumbbell systems described herein. One pound, 5 pounds, 10 pounds, 20 pounds, 25 pounds, 50 pounds, 100 pounds can be mentioned as suitable increments. One kilogram, 5 kg, 10 kg, 20 kg, 25 kg, 50 kg, even 100 kilograms also can be mentioned as suitable increments. Fractions of pounds and fractions of kilograms also can be used, such as, for example, 2.5-pound increments. Increments need not be uniform. For example, a first plurality of nested weight cylinders can use a smaller increment, while a second plurality of nested weight cylinders uses a larger increment. The first plurality of nested weight cylinders could use weight cylinders weighing 2.5 pounds, 5 pounds, 7.5 pounds and 10 pounds; while the second plurality of nested weight cylinders could use weight cylinders weighing 10 pounds, 20 pounds, 30 pounds, and 40 pounds.
Any suitable material can be used in the telescoping dumbbell systems of the present invention. For example, the grab may include a polymer foam, rubbery material, or a combination thereof. In that way, the grab can assist an athlete to hang onto the system during exercise. For another example, weight cylinders can include any suitable metal, such as, for example, iron, lead, aluminum, titanium, copper, alloys thereof, and combinations thereof. Various steels may be mentioned in particular. Exotic but high-density metals such as gold and silver also may be used. High-strength plastics such as, for example, high density polyethylenes, nylons, polyurethanes, and the like can be used to enclose another substance having mass in the form of a weight cylinder. Sand-filled and water-filled weight cylinders may be mentioned in this regard.
The cylindrical base comprises a grab, and optionally a circular bearing race rotationally supporting the grab. This bearing race allows the grab to rotate independently of the rest of the system, and may reduce joint strain for the athlete in certain exercises. Any suitable bearings can be used in the bearing races. In some cases, a bearing race comprises ball bearings, cylindrical bearings, conical bearings, or a combination thereof.
Telescoping dumbbell systems comprise at least one base weight selecting pin slidably attached to the cylindrical base. That weight selecting pin slides into one or more weight cylinders at a first pin engagement port. If desired, two, three, four, five, or six base weight selecting pins slidably attached to the cylindrical base alternatively could be used. Correspondingly, a suitable number of pin engagement ports would be required in the first plurality of nested weight cylinders.
In some cases, the cylindrical base and each weight cylinder in the plurality of nested weight cylinders comprise a barbell engagement port, and the barbell engagement ports of the cylindrical base and of each weight cylinder is adapted to align with each other. This allows the end of a barbell to be inserted into the telescoping dumbbell system. Any desirable number of weight cylinders can be added to a barbell end in this way. In other words, some or all of the mass of a telescoping dumbbell system can be attached to the end of a barbell for further exercises. A pair of telescoping dumbbell systems can provide balance incremental mass for both ends of a barbell. As used herein, “dumbbell” indicates a device usually held in one hand, while “barbell” indicates a two-handed device. Of course, if desired, an athlete can use two hands on a dumbbell and one hand on a lightly-weighted barbell.
When a barbell enters a barbell engagement port, in some cases, the telescoping dumbbell system can be secured to the barbell. This can be accomplished in any suitable manner. In some cases, one or more barbell engagement pins slidably attached to the interior surface of the cylindrical base proximal to the barbell engagement port, slide into and engage a weight engagement port on the end of the barbell.
Some embodiments of the present invention allow for the addition of significant mass through the concept of “telescoping.” As explained herein, a first plurality of weight cylinders can fit within a second plurality of weight cylinders. The athlete can select a suitable number of weight cylinders in the second plurality to obtain a desirable mass with which to exercise. If the second plurality does not afford sufficient mass for the athlete, a third plurality of nested weight cylinders can be added, and so on. Telescoping can be accomplished in any suitable manner. In some instances, a telescoping dumbbell system includes a second weight selecting pin slidably attached to an outermost weight cylinder in the first plurality of nested weight cylinders; a second plurality of nested weight cylinders, wherein each weight cylinder in the second plurality of nested weight cylinders comprises a second pin engagement port adapted to receive the second weight selecting pin; wherein each second pin engagement port is adapted to align with other second pin engagement ports of the weight cylinders in the second plurality of nested weight cylinders; and wherein the second plurality of nested weight cylinders adds to the incrementally-expandable mass of weights.
If a third plurality of nested weight cylinders is desired, the system may include a third weight selecting pin slidably attached to an outermost weight cylinder in the second plurality of nested weight cylinders; a third plurality of nested weight cylinders, wherein each weight cylinder in the third plurality of nested weight cylinders comprises a third pin engagement port adapted to receive the third weight selecting pin; wherein each third pin engagement port is adapted to align with other third pin engagement ports of the weight cylinders in the third plurality of nested weight cylinders; and wherein the third plurality of nested weight cylinders adds to the incrementally-expandable mass of weights.
Where present, pluralities of nested weight cylinders can include in each weight cylinder a barbell engagement port adapted to align with each other barbell engagement port in the system. In this way, a significant range of mass can be exercised with a single hand in dumbbell form, or the telescoping dumbbell system can be attached to a barbell, and exercises performed against that significant range of mass in barbell form.
Several embodiments herein employ a grip, a grab, or a handle portion that comprises an ergonomic shape. As used herein, “an ergonomic shape” means a thicker middle and thinner ends. An oblate ellipsoid is one possible ergonomic shape. The ergonomic shapes account for the space enclosed when the fingers curl around to touch the tip of the thumb. Since the middle finger and ring finger are longer, together, than the index finger and the pinky, together, an ergonomic shape accounts for that enclosed space. In some cases, it can be said the ergonomic shape is an improvement over a right cylinder when it comes to a shape for the human hand to grab.
As stated before, certain additional embodiments relate to dumbbell systems for exercising with an incrementally-variable mass of weights, comprising: a grip comprising a handle portion optionally enclosing a pin-receiving portion; a weight-engagement device having a first end opposite a second end, comprising a plurality of weight-engagement ports dispersed between the first end and the second end, each weight-engagement port in the plurality of weight-engagement ports being configured to receive a weight-retaining pin; a first plurality of weight plates, each weight plate in the first plurality of weight plates comprising at least one grip-engagement port configured to also receive the weight-retaining pin, wherein each of the at least one grip-engagement port is adapted to align with a weight-engagement port in the plurality of weight-engagement ports; wherein the plurality of weight plates provides the incrementally-variable mass of weights.
Often, a weight-engagement port partners with another weight-engagement port to stabilize a weight plate on the weight-engagement device. In some cases, therefore, a plurality of weight-engagement ports comprises a left plurality of engagement ports opposite a right plurality of engagement ports, wherein each engagement port in the left plurality of engagement ports aligns with an engagement port in the right plurality of engagement ports.
The weight-engagement device, and the weight plates used with that device, can have any suitable shape. For example, the weight-engagement device can exhibit a cylindrical device shape, and the weight plates are circular where they engage the cylinder of the weight-engagement device. In another example, the weight-engagement device comprises a stand comprising a horizontal stabilizer joining two risers providing the plurality of weight-engagement ports; the horizontal stabilizer joining the two risers proximal to the first end. The horizontal stabilizer and risers can have any suitable shape, consistent with their function of connecting the athlete's hand to one or more weight plates. In some instances, the two risers each exhibit a curved cross section, a square cross section, an angular cross section, or any desired cross section. Optionally, a circumferential stabilizer can connect the two risers some distance from the first end for greater stability of the weight engagement device.
The grip can be affixed to the weight-engagement device in any suitable manner. Certain cases provide a grip permanently affixed to the weight-engagement device proximal to the first end. In other cases, the grip is adjustable relative to the weight-engagement device. For example, in further cases the grip is adapted to be selectively secured to any of the weight-engagement ports in the plurality of weight engagement ports. Applicant has also discovered a way to keep the grip from rotating, or to control the rotation as desired, in some embodiments. This can be accomplished, for example, by including one or more rotation guides adapted to minimize rotation of the grip within the weight-engagement device. The rotation guide can eliminate rotation of the grip during exercise, or it can allow a desired amount of rotation. Optionally, a rotation guide may include one or more weight stabilization ports that can receive a weight-selection pin that also engages a weight plate and/or a weight engagement device.
It has been found that a strengthened weight-engagement port further stabilizes the weight-retaining pin and therefore the weight plate on the weight-engagement device. In certain instances, the weight-engagement ports in the plurality of weight-engagement ports each include a pin support collar. A pin support collar can form any suitable shape. In some cases, it is a small cylinder of material dimensioned large enough to receive the weight-retaining pin, and welded, molded, or otherwise attached to the weight-engagement device about the weight-engagement port.
As in other systems described herein, nested weights can be used to increase the resistance against which exercises are performed. In those cases, a first plurality of weight plates engages the weight-engagement device around the device, and then a second plurality of weight plates engages around the first plurality of weight plates. Thus, in certain cases, a second plurality of weight plates appears, each weight plate in the second plurality of weight plates being dimensioned to fit around at least one weight plate in the first plurality of weight plates; wherein each weight plate in the second plurality of weight plates comprises at least one grip engagement port configured to receive the weight-retaining pin, a secondary weight-retaining pin, or both.
Any suitable weight-retaining pins can be used. In some instances, the weight-retaining pin and/or the secondary weight-retaining pin comprises a spring-loaded ball bearing, a spring-loaded post, or a combination of both. In certain embodiments of a spring-loaded ball bearing, the ball bearing provides enough structure to retain the pin in the weight-engagement device, thereby holding the weight plates to the device. Then, the pin can be tugged firmly, causing the ball bearing to give way, and the pin can be removed. In other cases, a spring-loaded post presents a greater obstacle to removing the pin. It is possible to provide a retraction grip for releasing the weight-retaining pin or the secondary weight-retaining pin from the grip-engagement port. In some cases, a single weight-retaining pin holds a weight plate to a weight-engagement device. Optionally, that is possible because the pin is strong enough to hold the weight from one side of the device. Or, the pin extends across the weight-engagement device, for example, through a pin-receiving portion of a grip. In that case, the pin-receiving portion is a hollow tube extending through the grip so the pin enters the grip on one side of the weight-engagement device, and emerges on the other side of the weight-engagement device, entering a weight plate's grip engagement port(s) on one or both sides of the weigh plate. In other cases, a weight plate is held to the weight-engagement device with two or more than two weight-retaining pins. A weight-retaining pin can have any suitable dimensions. For example, 0.25″, 0.33″, 0.5″, 0.66″, 0.75″, 0.8″, 1.0″, less than 0.25″, or greater than 1.0″ diameters having a circular cross section may be mentioned. Alternatively, square, triangular, polygonal, oval, irregular, or any desired cross section may be used. In some cases, the largest dimension of the cross section may be 0.25″, 0.33″, 0.5″, 0.66″, 0.75″, 0.8″, 1.0″, less than 0.25″, or greater than 1.0″.
Any suitable weight plates can be used in the embodiments of the present invention. Those weight plates can have any suitable shape, dimensions, and materials. Weight plates can interface with each other with flat surfaces, or with stacking structures that support and separate adjacent weight plates. Those stacking structures can have any suitable shapes and dimensions. Having weight plates that are separated by stacking structures can allow easier manipulation of those weight plates as the system is being configured for the next exercise.
Another dumbbell system for exercising with an incrementally-variable mass of weights includes one or more weight engagement rods, each comprising a shaft having a top tip and a bottom tip, and a screw thread along at least a portion of the shaft, a hold comprising a gripping portion adjacent one or more rod engagement openings, each of the one or more rod engagement openings comprising a complementary screw thread for engaging the screw thread of the one or more weight engagement rods, and a plurality of weight plates, each weight plate comprising one or more rod engagement ports for receiving the one or more weight engagement rods, and an opening dimensioned to receive a human hand grasping the hold. The weight engagement rods connect the weight plates to the hold. The hold has one, two, or more than two rod engagement openings so the rods can be screwed onto the hold to a desired position. Then weight plates are added to the weight engagement rods as desired. Optionally, the weight engagement rods have stabilizing end caps on the bottom tips. The stabilizing end caps can be any suitable structure, usually offering at least some stability to the rods standing on a flat surface. The stabilizing end caps can be removably affixed, permanently affixed, or integrally affixed to the bottom tip. “Removably affixed” indicates a stabilizing end cap that can be removed by hand or with simple tools. “Permanently affixed” indicates a separately-manufactured part that is attached to the rod in any suitable manner, such as with fasteners such as bolts, or by welding or with adhesive, or combinations thereof. “Integrally affixed” stabilizing end caps are manufactured as part of the rod itself, such as by molding, casting, forging, and the like.
Each weight engagement rod can have one or two or more weight keepers. Weight keepers have a body and a rod receiving port, typically a circular hole, with keeper screw thread suitable for engaging the screw thread of the engagement rod. Weight keepers can have any suitable shape. In some cases, the body of a weight keeper includes finger knobs for manipulating the weight keeper. Once the weight plates are added to the rods, weight keepers can be screwed onto the rods to retain the weights. Optionally, a weight keeper can be positioned below a weight plate to position the weight plate where desired, and to keep the weight plate on the rod, especially if there is no stabilizing end cap or if the stabilizing end cap is not strong enough to hold the weight plate. In other circumstances, weight keepers can be positioned between weight plates if desired. In some cases, the weight plates themselves may include two or more stacking structures to support and separate adjacent weight plates.
Further embodiments of the present invention allow for barbells that allow the dumbbell systems described herein to join together to exercise larger muscle groups. In some cases, a barbell system for exercising with an incrementally-variable mass of weights, comprises a barbell comprising a first barbell end opposite a second barbell end, and a gripping portion disposed between the first barbell end and the second barbell end; wherein the first barbell end is configured to engage any one of the dumbbell systems described herein, the telescoping dumbbell systems described herein, or any combination thereof; and wherein the second barbell end is configured to engage any one of the dumbbell systems described herein, the telescoping dumbbell systems described herein, or any combination thereof. The dumbbell systems and telescoping dumbbell systems can attach to the barbell in any suitable manner. In some cases, the first barbell end comprises one or more first dumbbell engagement ports adapted to receive at least one first dumbbell engagement pin; and the second barbell end comprises at least one second dumbbell engagement port adapted to receive at least one second dumbbell engagement pin. Dumbbell engagement pins can be the same as, or resemble, the weight-retaining pins also described. Or, paired dumbbell engagement docks and dumbbell engagement locks can be used. Generally, a dock is a hole or recess into which the lock fits. The docks and locks optionally include additional structure, such as a post that fits into a groove, optionally with turns in the groove to capture the post to prevent the lock and dock from unintentionally disengaging.
The systems of the present invention can be made in any suitable manner. Methods, such as those known in the art for constructing strength-training equipment, can be used. For example, the weight plates and weight cylinders can be cast, forged, injection molded, stamped, welded, sintered, milled, cut, or precipitated out, as desired.
The systems of the present invention can be used in any suitable manner, such as, for example, in accordance with strength training techniques already known in that art. For example, a set of ten repetitions can be performed at one mass on the system; the mass increased and a set of eight repetitions then performed; and the mass increased again for a set of five repetitions. In some cases, the systems of the present invention make it easier or faster to transition between sets and exercises.
Further embodiments of the present invention can be described by reference to the accompanying drawings.
Weight-engagement device 120 has a cylindrical device shape. In
It can be said that a first plurality of nested weight cylinders 520, 530, 540 or 1110 provides an incrementally-expandable mass of weights for exercising. It can be said further that additional pluralities of nested weight cylinders, such as second plurality of weight cylinders 1120, and third plurality of nested weight cylinders 1130, can add to the incrementally-expandable mass of weights.
Dumbbell system 1301 can further comprise a second plurality of weight plates. As shown in
Plurality of weight plates 3140 in dumbbell system 3101 includes weight plates 3141, 3142, 3143, 3144. Weight plate 3141 includes weight engagement ports 3191, 3192 for receiving weight engagement rods 3110, 3120, respectively. Opening 3193 is dimensioned to receive a human hand grasping hold 3130. Left stabilizing end cap 3161 is integrally affixed to bottom tip 3112 of shaft 3115. Right stabilizing end cap 3162 is integrally affixed to bottom tip 3122 of shaft 3125. Weight keepers 3171, 3172 appear on weight engagement rods 3110, 3120, respectively. Weight keepers 3171, 3172, stabilizing end caps 3161, 3162, and hold 3130 keep the plurality of weight plates 3140 on the weight engagement rods 3110, 3120. Weight keeper 3171 includes body 3173 with rod receiving port 3175 having keeper screw thread 3177 for engaging screw thread 3118 of left engagement rod 3110. Finger knobs 3181, 3182 appear for manipulating weight keeper 3171. Weight plates 3142, 3143 include stacking structures 3152, 3154 to support and separate adjacent weight plates 3142, 3143, 3144 in the plurality of weight plates 3140.
Dumbbell system 3601 also comprises a first plurality 3640 of weight plates 3641, 3642, 3643, 3644, 3645, which include grip-engagement ports 3681, 3682, 3683, 3684, 3685, 3686, 3687, as shown, each configured to also receive weight-retaining pin 3661. Grip-engagement port 3683 is adapted to align with weight-engagement port 3633 and receive weight retaining pin 3661. The first plurality of weight plates 3640 provides an incrementally-variable mass of weights for exercise. Weight plates 3641, 3642, 3643, 3644, 3645 include flat stacking structures 3651, 3652, 3653, 3658, 3654, 3655 as shown, to support and separate adjacent weight plates in the first plurality of weight plates 3640. Weight plate 3645 defines a circle 3646 proximate to weight-engagement device 3620. Weight plate 3645 also illustrates weight-stabilizing recesses 3656, 3657 proximal to weight-engagement device 3620.
Dumbbell system 3601 includes weight-engagement device 3620 that comprises a stand having horizontal stabilizer 3621 joining left riser 3622 and right riser 3623 proximal to first end 3603. Weight-engagement ports 3631, 36323633, 3634, 3635, 3636, 3637 on right riser 3623 represent a right plurality of weight engagement ports that aligns with a left plurality of weight engagement ports (not visible) on left riser 3622. The two risers 3622, 3623 each exhibit a curved cross-section as shown. Grip 3610, which could be substituted with grip 110, grip 410, grip 1901, or grip 2001, for example, also includes rotation guides 3671, 3672 adapted to minimize rotation of grip 3610 within weight-engagement device 3620. Weight-retaining pin 3661 comprises Spring-loaded ball bearing 3662, and finger ring 3663 to allow extraction of weight-retaining pin 3661 from weight-engagement device 3620.
Dumbbell 5441 includes a grip (not seen), weight plate 5431 permanently affixed to the grip. Weight plate 5431 defines an opening (also not seen) about the grip sufficient in size for a human hand to grasp the grip. Flat stacking structures 5417, 5418, and interlocking stacking structure 5413 can be seen on weight plate 5431. Filling port 5425 is adapted to receive and retain at least one filling material to impart mass to dumbbell 5441. Depending on the materials used to build and/or fill dumbbell 5441, dumbbell 5441 might have an exercise mass of 15 pounds.
Dumbbell 5541 includes a grip (not seen), weight plate 5531 permanently affixed to the grip. Weight plate 5531 defines an opening (also not seen) about the grip sufficient in size for a human hand to grasp the grip. Flat stacking structures 5517, 5518, and interlocking stacking structure 5513 can be seen on weight plate 5531. Filling port 5525 is adapted to receive and retain at least one filling material to impart mass to dumbbell 5541. Depending on the materials used to build and/or fill dumbbell 5541, dumbbell 5541 might have an exercise mass of 40 pounds.
Inner weight engagement device 5620 is adapted to fit incrementally within outer weight engagement device 5720, and their position relative to each other is secured by grip-retaining pins 5921, 5922 that are also engaging grip 5610 that encloses a pin-receiving portion adapted to receive those grip-retaining pins 5921, 5922. Weight plate 5831 is secured to outer weight engagement device 5720 by weight retaining pin 5923. Inner weight engagement device 5620 could be replaced by a weight engagement device 3620, for example. Outer weight engagement device could be replaced by weight engagement device 4120, for example. Pins 5921, 5922, 5923 can be replaced with any of the numerous pins also disclosed herein. Weight plate 5831 defines a circle proximate to outer weight engagement device 5720, and could be replaced, for example, with weight plates 1331, 3641, 4831 as disclosed herein. Second weight plate 1371 could be fitted around weight plate 5831 if desired, allowing for a second plurality of weight plates (not shown).
Inner weight engagement device 5620 has an inner first end 5603 opposite an inner second end 5604. A plurality 5630, 5640 of inner weight-engagement ports are dispersed between the inner first end 5603 and the inner second end 5604, each inner weight-engagement port is configured to receive a weight-retaining pin or a grip-retaining pin such as grip-retaining pins 5921, 5922. Inner weight engagement device 5620 includes a stand having left riser 5622 and right riser 5623. They are joined by horizontal stabilizer 5621 that is proximal to inner first end 5603. In some cases, horizontal stabilizer 5621 could be replaced by a permanently-affixed grip, such as grip 1310. Left plurality 5640 of inner weight-engagement ports 5642, 5643, for example, are opposite right plurality 5630 of inner weight-engagement ports 5632, 5633, 5634. Left inner weight-engagement port 5642 aligns with right inner weight-engagement port 5632. Left riser 5622, and right riser 5623 each exhibit a curved cross-section. Inner weight engagement device 5620 includes a circumferential stabilizer 5624 joining the two risers 5622, 5623 distal from the inner first end 5603.
Grip 5610 comprises a handle portion 5611, which could be replaced by any of the grips 1901, 3610, 4310, and possibly grip 410 in some embodiments. Grip 5610 is adapted to be selectively secured to any of the inner weight-engagement ports in the plurality 5630, 5640 of inner weight-engagement ports. Grip 410 would obviate the need for grip-retaining pins 5921, 5922. Optionally, dumbbell system can be configured so that the location of grip 5610 is not related to the incremental fit of inner weight engagement device 5620 relative to outer weight engagement device 5720. For example, as mentioned above, horizontal stabilizer 5621 could be replaced by grip 1310. For another example, grip 5610 could be located proximate to inner second end 5604 and circumferential stabilizer 5624, and dumbbell system 5601 is arranged otherwise as shown in
Outer weight engagement device 5720 includes outer first and 5703 opposite outer second end 5704, and a plurality 5730, 5740 of outer weight-engagement ports dispersed between the outer first end 5703 and the outer second end 5704. The plurality 5730, 5740 of outer weight-engagement ports comprises a left plurality 5740 and a right plurality 5730 of outer weight-engagement ports. Each outer weight-engagement port in the left plurality 5740 aligns with an outer weight-engagement port in the right plurality 5730. For example, left outer weight-engagement port 5741 aligns with right outer weight-engagement port 5731. As can be seen especially in
Structurally, there may be no difference between a weight-retaining pin or a grip-retaining pin. Different names are used herein only to indicate the function at a given moment. For example, grip-retaining pins 5921, 5922 could also secure a weight plate proximal to grip 5610, whereupon they could be referred to as weight-retaining pins if desired.
Further understanding of the present invention can be had from the following clauses.
Clause 1. A dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
Clause 2. The dumbbell system of clause 1, wherein the handle portion of the grip comprises a polymer foam, rubbery material, or a combination thereof.
Clause 3. The dumbbell system of any one of the preceding clauses, wherein the weight-selecting portion of the grip comprises a single retractable rod configured to selectively retract into the handle portion and to selectively emerge from the handle portion to engage a chosen weight-engagement port in the plurality of weight-engagement ports and a grip-engagement port aligned with the chosen weight-engagement port.
Clause 4. The dumbbell system of clause 3, wherein the single retractable rod is spring-loaded.
Clause 5. The dumbbell system of any one of clauses 3-4, wherein the single retractable rod is electromagnetically activated.
Clause 6. The dumbbell system of any one of clauses 3-5, wherein the single retractable rod is activated by rotating a rod deployment mechanism relative to the handle portion.
Clause 7. The dumbbell system of any one of the preceding clauses, wherein the weight-selecting portion of the grip comprises dual retractable rods coaxially arranged and configured to selectively retract into the handle portion and to selectively emerge from the handle portion to engage a chosen pair of weight-engagement ports in the plurality of weight-engagement ports and a pair of grip-engagement ports aligned with the chosen pair of weight-engagement ports.
Clause 8. The dumbbell system of any one of the preceding clauses, wherein the weight-engagement device comprises a cylindrical device shape.
Clause 9. The dumbbell system of any one of the preceding clauses, wherein each weight plate in the plurality of weight plates defines a circle proximate to the weight-engagement device.
Clause 10. The dumbbell system of any one of the preceding clauses, wherein the weight-engagement device comprises a weight-retention rim configured to assist in retaining at least one weight plate of the plurality of weight plates on the weight-engagement device.
Clause 11. The dumbbell system of any one of the preceding clauses, wherein each weight plate in the plurality of weight plates defines a cylindrical weight shape.
Clause 12. The dumbbell system of any one of the preceding clauses, wherein the handle portion comprises an ergonomic shape.
Clause 13. A telescoping dumbbell system for exercising with an incrementally-expandable mass of weights, comprising:
Clause 14. The telescoping dumbbell system of clause 13, wherein the cylindrical base comprises a circular bearing race rotationally supporting the grab.
Clause 15. The telescoping dumbbell system of any one of clauses 13-14, wherein the cylindrical base and each weight cylinder in the plurality of nested weight cylinders comprise a barbell engagement port; and wherein the barbell engagement ports of the cylindrical base and of each weight cylinder is adapted to align with each other.
Clause 16. The telescoping dumbbell system of any one of clauses 13-15, wherein the grab comprises a polymer foam, a rubbery material, or a combination thereof.
Clause 17. The telescoping dumbbell system of any one of clauses 13-16, wherein the bearing race comprises ball bearings, cylindrical bearings, conical bearings, or a combination thereof.
Clause 18. The telescoping dumbbell system of any one of clauses 13-17, comprising one, two, three, four, five, or six base weight selecting pins slidably attached to the cylindrical base.
Clause 19. The telescoping dumbbell system of any one of clauses 13-18, wherein the cylindrical base defines an interior surface and an exterior surface, further comprising a barbell engagement pin slidably attached to the interior surface proximal to the barbell engagement port, and adapted to engage a weight engagement port on a barbell present in the barbell engagement port of the cylindrical base.
Clause 20. The telescoping dumbbell system of any one of clauses 13-19, further comprising:
Clause 21. The telescoping dumbbell system of clause 20, wherein each weight cylinder in the second plurality of nested weight cylinders comprises a barbell engagement port adapted to align with each other barbell engagement port in the system.
Clause 22. The telescoping dumbbell system of any one of clauses 13-21, further comprising:
Clause 23. The telescoping dumbbell system of clause 22, wherein each weight cylinder in the third plurality of nested weight cylinders comprises a barbell engagement port adapted to align with each other barbell engagement port in the system.
Clause 24. The telescoping dumbbell system of any one of clauses 13-23, wherein the grab comprises an ergonomic shape.
Clause 25. A dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
Clause 26. The dumbbell system of clause 25, wherein the plurality of weight-engagement ports comprises a left plurality of weight-engagement ports opposite a right plurality of weight-engagement ports, wherein each weight-engagement port in the left plurality of weight-engagement ports aligns with a weight-engagement port in the right plurality of weight-engagement ports.
Clause 27. The dumbbell system of any one of clauses 25-26, wherein the weight-engagement device comprises a cylindrical device shape.
Clause 28. The dumbbell system of any one of clauses 25-26, wherein the weight-engagement device comprises a stand comprising a horizontal stabilizer joining two risers providing the plurality of weight-engagement ports; the horizontal stabilizer joining the two risers proximal to the first end.
Clause 29. The dumbbell system of clause 28, wherein the two risers each exhibit a curved cross section.
Clause 30. The dumbbell system of any one of clauses 25-29, wherein the grip is permanently affixed to the weight-engagement device proximal to the first end.
Clause 31. The dumbbell system of any one of clauses 25-29, wherein the grip is adapted to be selectively secured to any of the weight-engagement ports in the plurality of weight engagement ports.
Clause 32. The dumbbell system of any one of clauses 25-31, wherein the grip comprises one or more rotation guides adapted to minimize rotation of the grip within the weight-engagement device.
Clause 33. The dumbbell system of any one of clauses 25-32, wherein each weight plate in the first plurality of weight plates defines a circle proximate to the weight-engagement device.
Clause 34. The dumbbell system of any one of clauses 25-33, wherein each weight plate in the first plurality of weight plates comprises one or more weight-stabilizing recesses proximal to the weight-engagement device.
Clause 35. The dumbbell system of any one of clauses 25-34, wherein at least one weight-engagement port in the plurality of weight-engagement ports comprises a pin support collar.
Clause 36. The dumbbell system of any one of clauses 25-35, further comprising a second plurality of weight plates, each weight plate in the second plurality of weight plates being dimensioned to fit around at least one weight plate in the first plurality of weight plates;
Clause 37. The dumbbell system of any one of clauses 25-36, wherein the weight-retaining pin comprises a spring-loaded ball bearing, a spring-loaded post, or a combination of both.
Clause 38. The dumbbell system of any one of clauses 25-37, wherein the weight-retaining pin comprises a retraction grip for releasing the weight-retaining pin from the at least one grip-engagement port.
Clause 39. The dumbbell system of any one of clauses 36-38, wherein the secondary weight-retaining pin comprises a spring-loaded ball bearing, a spring-loaded post, or a combination of both.
Clause 40. The dumbbell system of any one of clauses 36-39, wherein the secondary weight-retaining pin comprises a retraction grip for releasing the secondary weight-retaining pin from the at least one grip-engagement port.
Clause 41. The dumbbell system of any one of clauses 25-40, wherein the grip comprises an ergonomic shape.
Clause 42. The dumbbell system of any one of clauses 25-41, wherein at least one weight plate in the first plurality of weight plates comprises two or more first stacking structures to support and separate adjacent weight plates in the first plurality of weight plates.
Clause 43. The dumbbell system of any one of clauses 36-42, wherein at least one weight plate in the second plurality of weight plates comprises two or more second stacking structures to separate adjacent weight plates in the second plurality of weight plates.
Clause 44. The dumbbell system of any one of clauses 25-43, wherein the weight engagement device comprises one or more weight stabilizing protrusions, and the weight-engagement ports are dispersed on the one or more weight stabilizing protrusions.
Clause 45. The dumbbell system of any one of clauses 32-44, wherein the one or more rotation guides comprise one or more weight stabilization ports.
Clause 46. A dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
Clause 47. The dumbbell system of clause 46, wherein the one or more weight engagement rods contains two weight engagement rods.
Clause 48. The dumbbell system of any one of clauses 46-47, further comprising a stabilizing end cap affixed to the bottom tip.
Clause 49. The dumbbell system of clause 48, wherein the stabilizing end cap is removably affixed, permanently affixed, or integrally affixed to the bottom tip.
Clause 50. The dumbbell system of any one of clauses 4-49, further comprising one or more weight keepers, each weight keeper comprising a body with a rod receiving port with keeper screw thread for engaging the screw thread of the one or more engagement rods.
Clause 51. The dumbbell system of clause 50, wherein the body of each of the one or more weight keepers further comprises finger knobs for manipulating the one or more weight keepers.
Clause 52. The dumbbell system of any one of clauses 46-51, wherein at least one weight plate in the plurality of weight plates comprises two or more stacking structures to support and separate adjacent weight plates in the plurality of weight plates.
Clause 53. A dumbbell system for exercising with an incrementally-variable mass of weights, comprising:
Clause 54. The dumbbell system of clause 53, wherein the plurality of inner weight-engagement ports comprises a left plurality of inner weight-engagement ports opposite a right plurality of inner weight-engagement ports, wherein each inner weight-engagement port in the left plurality of inner weight-engagement ports aligns with an inner weight-engagement port in the right plurality of inner weight-engagement ports.
Clause 55. The dumbbell system of any one of clauses 53-54, wherein the plurality of outer weight-engagement ports comprises a left plurality of outer weight-engagement ports opposite a right plurality of outer weight-engagement ports, wherein each outer weight-engagement port in the left plurality of outer weight-engagement ports aligns with an outer weight-engagement port in the right plurality of outer weight-engagement ports.
Clause 56. The dumbbell system of any one of clauses 53-55, wherein the outer weight-engagement device comprises a cylindrical device shape.
Clause 57. The dumbbell system of any one of clauses 53-56, wherein the inner weight-engagement device comprises a stand comprising a horizontal stabilizer joining two risers providing the plurality of inner weight-engagement ports; the horizontal stabilizer joining the two risers proximal to the inner first end.
Clause 58. The dumbbell system of clause 57, wherein the two risers each exhibit a curved cross section.
Clause 59. The dumbbell system of anyone of clauses 57-58, wherein the inner weight-engagement device comprises a circumferential stabilizer joining the two risers distal from the inner first end.
Clause 60. The dumbbell system of any one of clauses 53-59, wherein the grip is permanently affixed to the weight-engagement device proximal to the first end.
Clause 61. The dumbbell system of any one of clauses 53-59, wherein the grip is adapted to be selectively secured to any of the inner weight-engagement ports in the plurality of inner weight-engagement ports.
Clause 62. The dumbbell system of any one of clauses 53-61, wherein the grip comprises one or more rotation guides adapted to minimize rotation of the grip within the inner weight-engagement device.
Clause 63. The dumbbell system of any one of clauses 53-62, wherein each weight plate in the first plurality of weight plates defines a circle proximate to the outer weight-engagement device.
Clause 64. The dumbbell system of any one of clauses 53-63, wherein each weight plate in the first plurality of weight plates comprises one or more weight-stabilizing recesses proximal to the outer weight-engagement device.
Clause 65. The dumbbell system of any one of clauses 53-64, wherein at least one outer weight-engagement port in the plurality of outer weight-engagement ports comprises a pin support collar.
Clause 66. The dumbbell system of any one of clauses 53-65, further comprising a second plurality of weight plates, each weight plate in the second plurality of weight plates being dimensioned to fit around at least one weight plate in the first plurality of weight plates;
Clause 67. The dumbbell system of any one of clauses 53-66, wherein at least one of the weight-retaining pin, the grip-retaining pin, and the secondary weight-retaining pin comprises a spring-loaded ball bearing, a spring-loaded post, or a combination of both.
Clause 68. The dumbbell system of any one of clauses 53-67, wherein at least one of the weight-retaining pin, the grip-retaining pin, and the secondary weight-retaining pin comprises a retraction grip for releasing the weight-retaining pin, the grip-retaining pin, and the secondary weight-retaining pin.
Clause 69. The dumbbell system of any one of clauses 53-68, wherein the secondary weight-retaining pin comprises a spring-loaded ball bearing, a spring-loaded post, or a combination of both.
Clause 70. The dumbbell system of any one of clauses 66-69, wherein the secondary weight-retaining pin comprises a retraction grip for releasing the secondary weight-retaining pin from the at least one secondary pin-engagement port.
Clause 71. The dumbbell system of any one of clauses 53-70 wherein the grip comprises an ergonomic shape.
Clause 72. The dumbbell system of any one of clauses 53-71 wherein at least one weight plate in the first plurality of weight plates comprises two or more first stacking structures to support and separate adjacent weight plates in the first plurality of weight plates.
Clause 73. The dumbbell system of any one of clauses 66-72, wherein at least one weight plate in the second plurality of weight plates comprises two or more second stacking structures to separate adjacent weight plates in the second plurality of weight plates.
Clause 74. The dumbbell system of any one of clauses 53-73, wherein the outer weight engagement device comprises one or more weight stabilizing protrusions, and the outer weight-engagement ports are dispersed on the one or more weight stabilizing protrusions.
Clause 75. The dumbbell system of any one of clauses 62-74, wherein the one or more rotation guides comprise one or more weight stabilization ports.
Clause 76. A dumbbell comprising: a grip;
Clause 77. The dumbbell of clause 76, further comprising a filling port adapted to receiving and retaining at least one filling material to impart mass to the dumbbell.
Clause 78. The dumbbell of any one of clauses 76-77, wherein the at least one filling material is chosen from sand, powder, pellets, pebbles, liquids, and combinations thereof.
Clause 79. The dumbbell of any one of clauses 76-78, wherein the at least one filling material is chosen from metal, ceramic, cement, rock, glass, polymer, water, oil, and combinations thereof.
Clause 80. The dumbbell of any one of clauses 76-79, wherein the weight plate comprises metal, ceramic, cement, polymer, or a combination of two or more thereof.
Clause 81. The dumbbell of any one of clauses 76-80, wherein the grip comprises an ergonomic shape.
Clause 82. The dumbbell of any one of clauses 76-81, wherein the opening defines a circular shape about the grip.
Clause 83. The dumbbell of any one of clauses 76-82, wherein the weight plate defines a cylindrical shape.
Clause 84. The dumbbell of any one of clauses 76-83, wherein the dumbbell has a mass of at least one pound, at least 3 pounds, at least 5 pounds, at least 10 pounds, at least 15 pounds, at least 20 pounds, at least 25 pounds, at least 30 pounds, at least 40 pounds, at least 50 pounds, at least 60 pounds, at least 70 pounds, at least 80 pounds, at least 90 pounds, or at least 100 pounds.
Clause 85. The dumbbell of any one of clauses 76-84, wherein the dumbbell has a mass of no more than one pound, no more than 3 pounds, no more than 5 pounds, no more than 10 pounds, no more than 15 pounds, no more than 20 pounds, no more than 25 pounds, no more than 30 pounds, no more than 40 pounds, no more than 50 pounds, no more than 60 pounds, no more than 70 pounds, no more than 80 pounds, no more than 90 pounds, or no more than 100 pounds.
Clause 86. A barbell system for exercising with an incrementally-variable mass of weights, comprising:
Clause 87. The barbell system of clause 86, wherein the first barbell end comprises at least one first dumbbell engagement port adapted to receive at least one first dumbbell engagement pin; and
Clause 88. The barbell system of any one of clauses 86-87, wherein the first barbell end comprises at least one first dumbbell engagement dock adapted to receive at least one first dumbbell engagement lock; and wherein the second barbell end comprises at least one second dumbbell engagement dock adapted to receive at least one second dumbbell engagement lock.
Clause 89. The barbell system of clause 88, wherein the at least one first dumbbell engagement lock comprises a dumbbell locking post, and the at least one first dumbbell engagement dock comprises a dumbbell locking groove adapted to receive the dumbbell locking post.
Clause 90. The barbell system of any one of clauses 88-89, wherein the at least one first dumbbell engagement dock comprises a dumbbell locking post, and the at least one first dumbbell engagement lock comprises a dumbbell locking groove adapted to receive the dumbbell locking post.
As previously stated, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various forms. It will be appreciated that many modifications and other variations stand within the intended scope of this invention as claimed below. Furthermore, the foregoing description of various embodiments does not necessarily imply exclusion. For example, “some” embodiments may include all or part of “other” and “further” embodiments within the scope of this invention. In addition, “a” does not mean “one and only one;” “a” can mean “one and more than one.”
This application claims benefit of priority under PCT Chapter I, Article 8, and 35 U.S.C. § 119(e) of: U.S. Provisional Patent Application No. 63/085,306 entitled, VARIABLE MASS DUMBBELL SYSTEMS, which was filed on Sep. 30, 2020;U.S. Provisional Patent Application No. 63/151,893 entitled, VARIABLE MASS DUMBBELL SYSTEMS, which was filed on Feb. 22, 2021; andU.S. Provisional Patent Application No. 63/225,521 entitled, VARIABLE MASS DUMBBELL SYSTEMS, which was filed on Jul. 25, 2021. Each of the foregoing U.S. Provisional Patent Application Nos. 63/085,306, 63/151,893, and 63/225,521 is incorporated herein in its entirety.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/US2021/052782 | 9/30/2021 | WO |
| Number | Date | Country | |
|---|---|---|---|
| 63085306 | Sep 2020 | US | |
| 63151893 | Feb 2021 | US | |
| 63225521 | Jul 2021 | US |
