1. Field of the Invention
This invention relates, generally, to a pneumatic tire. More particularly, it relates to a multiple chamber pneumatic tire having a simultaneous inflating system and an interconnected chamber barrier.
2. Background Art
Currently, pneumatic tires are used on vehicles and bicycles. These pneumatic tires are filled with compressed air. A common problem with pneumatic tires occurs when an object such as a nail penetrates through the wall of a tire and creates an opening for the compressed air to be released from the tire. This results in the tire becoming flat and inoperable for a user to operate the vehicle or bicycle. It would be more desirable for a pneumatic tire to have an interconnected chamber barrier for the tire to withstand being penetrated by an object and still be fully functioning and operable by a user.
It is hazardous to the safety of a driver, an occupant of a vehicle, and surrounding bystanders if a tire expels enough compressed air to the point that the air pressure of the tire can no longer perform its function. Many times, individuals find themselves in dangerous situations due to a flat tire such as a being stranded on the side of a busy road. It is a burden on an individual to have to repair or replace a punctured tire. Moreover, not everyone has the ability to change a tire. Thus, there is a need for a tire having an internal sealing structure which provides a barrier between a puncture or breach and an internal chamber that is retaining a portion of the compressed air.
Many pneumatic tires on the market today will deflate completely once punctured. There is a need for a pneumatic tire that will remain inflated even after being penetrated by a variety of types and sizes of sharp objects capable of puncturing through a tire wall including, but not limited to, a nail or a screw. It would be more desirable for a user to be able to continue driving on a punctured tire. Thus, there is a need for a tire having a barrier configured to seal closed the opening of a puncture of a tire.
However, in view of the prior art considered as a whole at the time the present invention was made, it was not obvious to those of ordinary skill in the pertinent art how the identified needs could be fulfilled.
The long-standing but heretofore unfulfilled need for a multiple chamber pneumatic tire having an upper section and a lower section. A diaphragm separates the upper section from the lower section. The lower section has at least two chambers. The at least two chambers each have a chamber valve, a nail guard layer, a plurality of fibers having an end connected to a surface of a chamber wall surface, and an interconnected barrier connected to at least two portions of a chamber wall surface. The upper section of the tire has a rod and at least one linkage located within at least one tube with a primary end connected to a chamber valve of a chamber and a secondary end connected individually to a tire rim or to a rod of a main valve. A tire pressure monitoring system is in communication with at least one chamber. The tire pressure monitoring system has a primary opening and a secondary opening in communication with at least one chamber. The tire can have at least one retractable stud which also includes improvements that overcome the limitations of prior art multiple chamber pneumatic tires is now met by a new, useful, and non-obvious invention.
The novel multiple chamber pneumatic tire operates by separating the bottom part of the tire where it meets the road with the rest of the tire where it meets the rim for most tires and use multiple chambers with independent valves that may or may not be connected to a main valve. The separation between the bottom of the tire with the rest of the tire may or may not be a possibility in low profile tires but they can have multiple chambers with their own valves which could be connected to a common valve or exit the rim as independent valves. The bottom of the tires will have individual tubes with their own valves, therefore, only a small amount of air will be lost after the tire gets punctured and will remain functional. The assembly could be fused with the tire or used as a separate product that can be added to any conventional tire with the addition of inner wall ridges. This invention can be applied to any current or future tire technology.
In a preferred embodiment, when the tire is punctured by a nail or by a sharp object of a certain size, the tire will remain operational. Immediate repair of the punctured tire would not be necessary. In most cases, the tire can stay with a hole and remain operational for weeks, months, years, or for the lifetime of the tire.
In a second embodiment, the novel pneumatic tire could also have an all season tire version with retractable studs and possibly exchangeable studs. These studs could stay in the tire without the need to remove them after the winter season is over due to the fact that they can be retracted within the tire. These studs can be retracted or pushed out of the tire using including, but not limited, to hydraulic pressure, compressed air, mechanical, or an electronic mechanism. A device that can monitor the condition of the road could be attached to the rim or to the tire. The device could be connected to the retractable studs system to facilitate the movement of the retractable studs in or out when necessary. This device could be triggered automatically or manually or could even be turned off. It is within the scope of this invention for the studs to be made of a material including, but not limited to, metal, rubber, plastic, sand like materials, or a combination of more than one type of material. One or more types and shapes of studs can be mounted on an all season tire. These mechanisms together would allow better traction and even improve stopping distance especially in bad weather.
For a fuller understanding of the nature and objects of the invention, reference should be made to the following detailed description, taken in connection with the accompanying drawings, in which:
In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings, which form a part hereof, and within which are shown by way of illustration specific embodiments by which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the invention.
In a general embodiment
Tubes 8A-8J will be attached to chamber valves 10A-10J of lower chambers 13A-13J of tire 1. For example, tube 8A has primary end 5A located opposite secondary end 7A. Tube 8B has primary end 5B located opposite secondary end 7B. Tube 8C has primary end 5C located opposite secondary end 7C. Tube 8D has primary end 5D located opposite secondary end 7D. Tube 8E has primary end 5E located opposite secondary end 7E. Tube 8F has primary end 5F located opposite secondary end 7F. Tube 8G has primary end 5G located opposite secondary end 7G. Tube 8H has primary end 5H located opposite secondary end 7H. Tube 8I has primary end 5I located opposite secondary end 7I. Tube 8J has primary end 5J located opposite secondary end 7J.
Linkages 12A-12J are connected to the chamber valves 10A-10J of tire 1 independently or could also be joined together by rod 15 to the top as seen in
At least one spring or biasing mechanism 18A-18B will help to bring the valve back to the closing position. Primary rubber portion 22A will control the airflow to the upper section 11 of the tire while secondary rubber portion 22B will control the airflow to lower section 9 of the tire. Section 29 of main valve 3 facilitates the filling of the lower chambers 13A-13K when the pump is pushed to marker 20A, and at the same time block the flow of air to the lower chambers 13A-13K when the pump is pushed to the second mark 20B. Main valve 3 has secondary end 23B having an opening 24. Opening 24 is the point of attachment of the main valve 3 to the equilibrium chamber 25 as seen in
In another embodiment depicted in
It is within the scope of this invention for the ridges or groves of the tire and the inner tube to be threaded. The interlocking ridges of the tire and the inner tube can be secured with at least one fastener such as a screw. The ridges can be rigid or flexible. The flexibility allows movement of the diaphragm with pressure. It is also within the scope of this invention for at least a portion of the diaphragm to be made of a pliable material such including, but not limited to, rubber roam, or plastic. In an alternate embodiment, a sealing material could be added between the interlocking ridges to help form an air tight seal between a the upper and lower sections.
For example, when a pneumatic force is applied to ring 49, a lower portion of stud 33 is moved across ramp 48 and the lower portion of stud 33 is retained within detent 40. When pneumatic pressure is applied to ring 49, the ring 49 is forced to move and will move to a different groove depending on how much pressure is applied and therefore, push the studs 33 out of the tire 45. The more pressure that is applied, the more the studs 33 will protrude from a surface of tire 45.
In a preferred embodiment, a tire 45 has at least one retractable stud 33. A ring 49 has at least one recess 46. The recess 46 is configured to house at least one retractable stud 33 in a retracted orientation 42 when the ring 49 is oriented in a first position. At least one recess 46 has a ramp 48 configured to guide an end of at least one retractable stud 33 into a detent 40 when the ring 49 is oriented in a second position. The detent 40 supports at least one retractable stud 33.
In an alternate embodiment, the ring is rotated, whereby, at least one retractable stud protrudes from the tire when a pneumatic force is applied to the ring.
In a preferred embodiment, an end of at least one retractable stud 33 has at least one tapered surface 60 (
In yet another embodiment, a portion of at least one retractable stud 33 is removable from ring 49. Ring 49 can be housed within support structure 37 (
In yet another embodiment, a ring is biased in a first position by a spring.
It is within the scope of this current invention for the studs 33 to be removable or permanently attached to the tire. Retractable studs 33 can have different shapes and sizes. One or more than one shape and size of stud 33 can be mounted to the support structure embedded within the tire.
As illustrated in
For example, when a nail punctures a tire a breach is formed. A portion of plurality of fibers 51 exits a chamber through breach 54 (
It is within the scope of this current invention for a plurality of threadlike objects or fibers to have a primary end connected to any surface of a chamber wall. The plurality of fibers can each have the same diameter throughout the length of each fiber. In an alternate embodiment, the plurality of fibers do not have to be connected to a chamber wall surface (not shown). The plurality of fibers can be loose and retained within a chamber.
In an alternate embodiment, the plurality of fibers can have a tapered configuration (not shown), whereby, the primary end of a fiber can have a diameter greater in size than the diameter of the secondary end of the fiber. At least one fiber of a plurality of fibers has a tapered configuration. At least one fiber has a first end being a first diameter and a second end having a second diameter. The first diameter is greater in size than the second diameter.
In an alternate embodiment, plurality of fibers 51 can have a contrasting color, whereby, the contrasting color differs from a color of tire 1. A contrasting color or a vibrant color of the plurality of fibers will serve as a visual marker to a user (not shown) of the location of a breach. Secondary end 53 of plurality of fibers 51 are retained within breach and can be visually located by a user. IT is within the scope of this invention for the color to be any color even if the color is the same as the tire.
In an alternate embodiment, plurality of fibers 51 can be coated with or be made of a substance including, but not limited to, a powder, a gel, a liquid, a film, or a chemical compound. The substance is configured to react with a solution. A solution includes, but is not limited to, water or any composition that will react with the substance to seal the breach.
The plurality of protrusions 56 and 57 can be made of any material including, but not limited to, rubber. The plurality of protrusions 56 and 57 are configured to prevent or restrict a sharp object such as a nail from movement and from penetrating adjacent chambers. Plurality of projections 56 and 57 also prevent repair tools such as a t-handle from damaging a chamber. Plurality of protrusions 56 and 57 are configured to interlock by collapsing onto each other, forming an interconnected barrier 55. In a preferred embodiment, this interconnected barrier 55 is located in the lower portion of a chamber to help protect the lower portion of the chamber.
It is within the scope of this invention for diaphragm 16 to be made of a rigid material including, but not limited to, metal or plastic to prevent any breach from penetrating through the diaphragm 16. An inner tube attachment to the sidewalls of the tire may or may not allow room for the diaphragm chamber to expand.
In another embodiment, tire 1 or inner tube 35 could have a plurality of diaphragms 16A and 16B (
In yet another embodiment, an adjustable bar could be attached to a portion of a vehicle to orient the bar to overlay the exterior portion of a tire. The bar has a plurality of indentations located on at least one outer perimeter edge of the bar. The indentations are configured to remove a sharp object from a tire. In a preferred embodiment, the indentations could be tapered to have a “V” or a “U” shape. However, it is within the scope of this invention for the indentations to have any shape capable of gripping, including, but not limited to a slit or a slot. A portion of the bar is positioned to overlay in close proximity to the tread portion of the tire. When a nail penetrates the tire, a portion of the nail may protrude from the tire. This protruding portion of the nail will make contact with the overlaying bar when the tire is rotated. When the protruded portion of the nail contacts the bar, the protruded portion of the nail will be guided into at least one indentation. Once the protruded portion of the nail is captured within the indentation, the force of the rotating tire will remove the remaining length of the nail from the tire.
It will thus be seen that the objects set forth above, and those made apparent from the foregoing description, are efficiently attained. Since certain changes may be made in the above construction without departing from the scope of the invention, it is intended that all matters contained in the foregoing description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention that, as a matter of language, might be said to fall therebetween.
Now that the invention has been described,
This application is a non-provisional application, entitled, “Multiple Chamber Pneumatic Tire,” which claims priority to co-pending U.S. Provisional Patent Application No. 62/149,356 filed Apr. 17, 2015, entitled, “FLAT FREE TIRE WITH MULTIPLE CHAMBERS WITH THEIR OWN VALVE AND SEPARATION OF THE LOWER SECTION OF THE TIRE WHERE IT MEETS THE ROAD WITH THE REST OF THE TIRE WITH SOME MODIFICATIONS IN LOW PROFILE TIRES AND THE ADDITION OF RETRACTABLE AND POSSIBLY EXCHANGEABLE STUBS FOR AN ALL SEASONS MODEL.”
Number | Date | Country | |
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62149356 | Apr 2015 | US |