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This invention relates to storage containers. In particular this disclosure relates to a prescription drug lock box that utilizes a detachable combination locking cover assembly that can secure a container and the contents held within.
This invention relates to a prescription drug lock box which can be used for securing various items including but not limited to pharmaceuticals, hospital and office supplies, chemicals, household cleaning products, personal electronics, cell phones, jewelry, personal items and the like.
Its most significant application might be for better securing prescription drugs within the home. Misuse of pharmaceutical drugs is a significant problem in today's society. Drugs can often be stolen from the prescribed person without their knowledge. They are often taken from unsecured medicine cabinets, bathroom counters, kitchen cabinets, etc. In addition, each year, sadly, medicines can unfortunately fall into the hands of toddlers and small children who can ingest them resulting in illness and sometimes death. The main intent of this device is to provide a simple and convenient, low cost means of security to prevent easy free access and theft of prescription drugs. The device can have various sizes and capacities to hold different bottle shapes and sizes for pills, liquids, ointments, etc.
Cases with resettable combination locking hasps, such as used in briefcases or metal lock boxes, are examples of locking storage containers. Several companies currently manufacture such hinged lock boxes. U.S. patent D621,152, Lebow shows a locking medicine bag. U.S. Pat. No. 6,059,135, John James et al shows a lockable safety container. U.S. Pat. No. 4,854,448, Hair shows a child proof locking container for storing medicines. Electronic, biometric finger print reading, or programmable keypad entry devices are also currently available, some of which are designed to mount into existing medicine cabinets. Many patents exist for child proof closures as well as ones that use locking tumblers to secure a cap to a bottle. Such devices are described in U.S. Pat. No. 3,445,021 Johnson et al; U.S. Pat. No. 3,407,954 Miliis; D664,350 & U.S. Pat. No. 8,020,415 Corbin & Warner; D512,831 Chue; U.S. Pat. No. 5,284,262 O'Nan; U.S. Pat. No. 7,350,655 Belden, U.S. Pat. No. 5,277,325 Yan. Still other pill cases designs include U.S. Pat. Nos. 6,000,546 & 8,006,845, Noble et al; US 2005/0029155 A1 Edwards. U.S. Pat. No. 8,201,705, Williamson shows a cover that uses a combination lock to secure a dish. Other combination locking containers also include U.S. Pat. Nos. 7,252,204 & 8,517,193 Small, the inventor of this patent application. A transparent portable security case is described in U.S. Pat. No. 7,918,362, Schmitt.
It is the object of the present invention to provide a prescription drug lock box that has the following advantages which are:
(a) to act as a deterrent or barrier to unauthorized access of pharmaceutical drugs;
(b) to provide an affordable solution for securing medications within the household;
(c) to provide a simple, mechanical locking container requiring neither batteries and electronics;
(d) to provide a device, easy to manufacture and with minimal number of working parts;
(e) to have design versions with enough storage capacity for holding larger quantities of packaged prescription drugs of various shapes and sizes.
(f) to provide a portable travel sized lock box for medications
Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings.
This invention pertains to a prescription drug lock box consisting of a container and a detachable combination locking cover assembly used to secure the contents held within. The container has an integrally formed key post positioned above its open end. The tumblers of the cover assembly engage the key post and lock to it thus securing contents held within. When the indicia of the tumblers and correct unlocking code are in alignment with a marker, the cover assembly may be installed or removed.
The container is a hollow part with uniform wall thickness having a flat horizontal bottom wall, a continuous vertical side wall, and open at the top. In the preferred embodiment, a curved bar with two legs is joined to opposing sides of the container's interior. The bar legs extend vertically from the side wall of the container, curve towards each other, and form a horizontal portion which is centered to the container and above the open end. The bar thus forms a closed rigid arch above the container's open end. From the center of the arch, an integrally formed cylindrical post extends further vertically. Projecting outwardly on the post's side wall is a linear array of tabs. The tab array is oriented in longitudinal direction from the top of the post. The tabs and post together represent a “key post” feature. The cover assembly and tumblers engage and lock to the key post. There are many methods for integrating and positioning a key post above the open container. For instance, in one alternate way, the key post could be formed on top of an integrally formed vertical column that projects upwardly from the center of the containers bottom wall. The presence of a central column would however take up some available space in the container. The bars and key post can be integrally molded or formed directly as features of the container where container, bars, and key post are injection molded or die cast as one single part. For ease of manufacture, and simpler injection molding, the preferred embodiment of this application shows the bars and post as being a separate rigid part that is bonded into a seat provided in the container. In another design variation, the bar could potentially attach to the container with a pivot on either side. With the bar able to swivel and rotate, the horizontal bar portion and key post could pivot out of the way with less obstruction to the container's opening.
The combination locking cover assembly consists of a cover, a set of locking tumblers, and a retaining cap. The cover is a hollow part with uniform wall thickness, having a continuous vertically oriented side wall, an upper wall, and fully open at the bottom end. Shape and cross-sectional profile of the cover's side wall concentrically matches and fits over the container's side wall. The cover and container nest and fit together, where the cover side wall overlaps and is outside of the container's side wall. In this manner the cover sheaths and closes off the container. The general form factor or horizontal cross-sectional profile of container and cover's side walls could be cylindrical, elliptical, rectangular, or of any shape. Illustrations of this application show the cross-sectional form factor as being elliptical. The shape and size of the cover provides clearance with the arched bar feature of the container when the device is fully assembled. A short protrusion extends vertically above the upper wall of the cover and creates a “tumbler seat” which is used to support the stack of tumblers. Projecting upwardly from the tumbler seat is a cylindrical shaft portion with a closed top end. A vertical key slot cuts through the tumbler seat and partially through shaft side wall. The cover's key slot provides clearance with the tabs of the key post and permits assembly and disassembly. A D-shaped profile counterbore is recessed into the top end of the shaft. The counterbore serves as a female mating feature used to assemble the retaining cap. The flat of the D-shape acts as an angular alignment feature in mating between the cap and cover. The inside diameter of the cover shaft has a close concentric fit and allows free insertion and extraction of the key post and tabs when cover assembly is either installed or removed. With cover assembly installed over the container, the key post tabs project outwardly past the shaft's outside diameter. The cover is vertically supported by the top of the key post. Each tumbler consists of a short cylindrical wall with its central axis oriented vertically. From the tumblers inner surface, and centered to the tumbler height, a horizontal wall or locking rib projects inwardly, terminating and leaving a hole at the center. A notch, or keyway opening, the width of which is equal to that of the cover's key slot, cuts through the locking rib wall. A set of indicia are equally spaced in a radial array on the outside diameter surface of tumbler. One of the indicia may be assigned as part of an unlocking code and is angular alignment and positioned directly in front of the keyway opening. The tumbler's inside diameter has close diametral fit with the cover shaft. A set of tumblers may be inserted onto the cover shaft, stacked above and supported by the tumbler seat. The tumblers may freely rotate on the cover shaft. The wall thickness of the locking rib is just slightly less than the gap height or spacing between the tabs of the key post. Discreet elevation of the stacked tumblers allows each locking rib to be centered with and have direct correspondence to a gap present between the tabs of the key post. An open channel for full insertion or extraction of key post is created when all tumbler keyways are in alignment with the cover's key slot. This open condition allows the cover assembly to be installed or removed from the container. Thus when fully assembled, the tumblers may rotate freely on the cover shaft with each locking rib engaging a gap between the tabs of the key post.
The retaining cap is used both to axially hold down and secure the stack of tumblers as well as to provide a location for aligning the tumbler indicia and unlocking code. The cap is a part with uniform wall thickness with top and bottom surfaces and a peripheral edge. The cap may have various shapes, have curvature, or may be simply flat or disc shaped. The cap's outer diameter fully covers the tumblers. An alignment indicator or “marker” is visible on the top surface of the cap. Projecting downwardly from the bottom surface of the cap is a D-shaped profile protrusion or male mating feature. The male mating feature fits into and provides alignment with the D-shaped profile counterbore or female mating feature on top of the cover shaft. Cover and cap may be press fit together via these mating features with a suitable high strength adhesive or solvent thus creating a strong bonded joint between the two and permanently capturing the tumblers to the cover. Note that the cap secures the tumblers to the cover but still allows them to freely rotate with minimal axial play. Other methods exist and are possible for securing the cap to the cover such as ultrasonic welding of plastics, mechanical fasteners, screws, retaining rings, etc as well as barbed plastic snap leg features, etc. With the cap aligned and bonded to the cover, the marker feature is positioned directly over the cover's key slot. Tumbler indicia may be rotated with the correct unlocking code displayed beneath the marker. In this unlocked condition the keyway openings of all tumblers are in alignment with the key slot of the cover and cover assembly may be installed or removed from the container. With the cover assembly placed over the container, rotation of any one tumbler from the unlocked condition causes the locking rib to intersect or engage into the gap of the key and defines a locked condition. In this locked condition, the cover can not be removed from the container and any contents held within are secured.
A preferred embodiment of the container of the present invention is illustrated in
Other embodiments of the tumblers might allow the unlocking code to be selectively chosen rather than pre-assigned.
The outer tumbler has indicia 117 equally spaced in a radial arrangement on the outside diameter surface. Directly behind each of the indicia, formed on inside surface, are recesses 118 that are suitably sized to accept the tooth of the inner tumbler. With the tooth feature on the inner tumbler having the ability to fit and index behind any of the indicia on the outer tumbler, the two piece tumbler set permits any of the indicia to be assigned as part of the unlocking code and be in alignment with the keyway.
Of the various means for attaching the retaining cap to the cover shaft,
The previous descriptions and drawings illustrate various embodiments for the device. Each variation has its own merits and advantages. The drawings and descriptions above do not imply or suggest any specific dimensions, wall thickness, or materials. Likewise exact values for fits, allowances, tolerances, etc. are not specified. The device could cold have larger size to secure items such as household cleaners, chemicals, among others. Accordingly, the reader will see that the prescription drug lock box of this invention can secure the contents of any number items held within. With knowledge of correct unlocking code, the end user can easily align the combination on the tumblers to the cap marker and remove the cover assembly having quick and easy access to items held within. The device provides a level of security and privacy to prevent others from gaining unauthorized access. The device can have several embodiments and sizes that are suitable for different applications, storage capacities, etc. The preferred embodiment suggests thin walled injection molded plastics, however other materials could be used such as formed sheet metal, die cast metals, etc. should an application require greater strength and security. The invention can be configured for minimal use of parts with single piece tumblers. Likewise, an embodiment using an inner and outer tumbler set would permit unlimited resetting of the unlocking code. Various means for applying the indicia are available. Indicia applied by means of adhesive backed labels to single piece tumblers allows for personal code selection and resetting as well. Although the description and drawings show use of four tumblers, the design could be altered for use with any number of tumblers —3, 5, etc. The form factor of the container may be altered to various shapes. The cover and container could interface in many different ways. For example the overlap of the parts could be the reverse of what is shown, where the container's side wall overlaps on the exterior of the cover's side wall. In brief, the device minimally consists of a container, a cover, a set of locking tumblers, and a retaining cap. Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than the examples given.
This application claims the benefit of PPA Ser. No. U.S. 61/765,651, filed 2013 Feb. 15 by the present inventor.
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Number | Date | Country | |
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61765651 | Feb 2013 | US |