[특허]Positionally restrained lap-supported devices

Fountain, Jr., Lonnie D.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Positionally restrained lap-supported devices

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47B-023/00 F16B-002/10 F16B-002/12
출원번호	US-0631141 (2015-02-25)
등록번호	US-9510673 (2016-12-06)
발명자 / 주소	Fountain, Jr., Lonnie D.
출원인 / 주소	Fountain, Jr., Lonnie D.
대리인 / 주소	Nixon & Vanderhye P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 9

초록
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Lap-supported devices are provided which are especially adapted for use by seated individuals, and include a base member, an opposed pair of clamp arms extending outwardly from a bottom surface of the base member and spaced apart from one another so as to accommodate therebetween a lap region of an individual, and a biasing assembly which exerts a bias force onto each of the clamp arms and thereby provide a clamping force against the respective lateral thigh regions of an individual. Some embodiments will have pivotal clamp members which include a torosional spring assembly to provide clamping force against the individual's lateral thigh regions. Alternatively or additionally, other embodiments may be provided with slide plates which carry the clamp arms and a tension spring assembly operatively connected to the slide plates.

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1. A lap-supported device comprising: a base member adapted to being supported by an individual's lap region;an opposed pair of clamp arms extending outwardly from a bottom surface of the base member and spaced apart from one another so as to accommodate therebetween the lap region of the individual such that the clamp arms are adjacently positioned against respective lateral thigh regions of the individual;a pair of opposed slide plates connected to the base member for reciprocal sliding movements between retracted and extended positions thereof, anda biasing assembly which exerts a bias force to the clamp arms to move the clamp arms in a direction to provide a clamping force against the respective lateral thigh regions of the individual and thereby positionally restrain the base member on the individual's lap region, whereinthe clamp arms are connected to a respective one of the slide plates such that the bias force of the tension spring assembly causes the clamp arms to be moved in a direction towards one another to define greater and lesser separation distances therebetween, and whereinthe biasing assembly comprises a tension spring assembly which biases the clamp arms toward one another in a direction toward establishing the lesser separation distance therebetween, the tension spring assembly operatively connecting the slide plates for exerting a bias force to move the slide plates in a direction toward the retracted position thereof whereby a clamping force is exerted against the respective lateral thigh region of the individual. 2. The assembly as in claim 1, wherein each of the clamp arms is pivotally connected to the base member so as to be capable of pivotal movements between a retracted state whereby the clamp arms are positioned adjacent to the base member and an extended state whereby the clamp arms extend outwardly from the base member. 3. The lap-supported device as in claim 2, wherein the biasing assembly comprises torosional hinge springs operatively connected to the clamp arms to exert a bias force to move the clamp arms in a direction toward the retracted state thereof. 4. The lap-supported device as in claim 1, which further comprises a pair of hinge mechanisms pivotally connecting each of the clamp arms to a respective lateral side region of the base member. 5. The lap-supported device as in claim 4, wherein the hinge mechanisms include spaced-apart pairs of apertured flanges fixed to the base member, spaced apart apertured posts fixed to each of the clamp arms and coaxially aligned with the flanges, and a hinge pin joining the coaxially aligned apertured flanges and posts. 6. The lap-supported device as in claim 5, wherein the biasing spring comprises a torosional hinge spring which is coaxially carried by the hinge pin. 7. The lap-supported device as in claim 6, wherein the top surface of the base member is recessed so as to define a perimetrical lip. 8. The lap-supported device as in claim 6, wherein the base member is in the form of a tray. 9. The lap-supported device as in claim 1, wherein the tension spring assembly comprises a tension spring operatively interconnecting the opposed slide plates. 10. The lap-supported device as in claim 9, wherein each of the slide plates includes a U-shaped channel to accommodate respective ends of the tension spring. 11. The lap-supported device as in claim 10, wherein the slide plates include an upright post, and wherein the respective ends of the tension spring are connected to the upright posts of the slide plates. 12. The lap-supported device as in claim 11, wherein the slide plates comprise a cover member covering the U-shaped channel and the upright post. 13. The lap-supported device as in claim 10, wherein the base member includes an upright post, and wherein the tension spring assembly includes a pair of tension springs interconnecting the upright post of the base member and a respective one of the slide plates. 14. The lap-supported device as in claim 1, wherein the base member comprises a pair of parallel slide rails for receiving a respective edge of the slide plates to allow for reciprocal sliding movements thereof. 15. The lap-supported device as in claim 14, wherein the slide plates include a projecting boss which abuts against a respective end of the slide rails to establish the retracted position of the slide plates. 16. The lap-supported device as in claim 14, further comprising a cover member for covering the tension spring assembly. 17. The lap-supported device as in claim 1, wherein each of the clamp arms is convexly curved so as to generally conform to the respective lateral thigh region of the individual. 18. The lap-supported device as in claim 1, wherein the base member defines a substantially planar top surface. 19. A lap-supported device comprising: a base member adapted to being supported by an individual's lap region;an opposed pair of clamp arms extending outwardly from a bottom surface of the base member and spaced apart from one another so as to accommodate therebetween the lap region of the individual such that the clamp arms are adjacently positioned against respective lateral thigh regions of the individual;a pair of opposed slide plates;a pair of separated slide rails for connecting the opposed slide plates to the base member for reciprocal sliding movements between retracted and extended positions thereof; anda biasing assembly which exerts a bias force to the clamp arms to move the clamp arms in a direction to provide a clamping force against the respective lateral thigh regions of the individual and thereby positionally restrain the base member on the individual's lap region, whereinthe clamp arms are laterally moveable relative to one another to define greater and lesser separation distances therebetween, and wherein the biasing assembly comprises a tension spring assembly which biases the clamp arms toward one another in a direction toward establishing the lesser separation distance therebetween, whereby a clamping force is exerted against the respective lateral thigh region of the individual, and whereinthe device further comprises a cover member for covering the tension spring assembly, the cover member including connection flanges for removably connecting the cover member to a respective one of the slide rails. 20. A lap-supported device comprising: a base member adapted to being supported by an individual's lap region;an opposed pair of clamp arms extending outwardly from a bottom surface of the base member and spaced apart from one another so as to accommodate therebetween the lap region of the individual such that the clamp arms are adjacently positioned against respective lateral thigh regions of the individual;a pair of opposed slide plates connected to the base member for reciprocal sliding movements between retracted and extended positions thereof anda biasing assembly which exerts a bias force to the clamp arms to move the clamp arms in a direction to provide a clamping force against the respective lateral thigh regions of the individual and thereby positionally restrain the base member on the individual's lap region, whereinthe clamp arms are laterally moveable relative to one another to define greater and lesser separation distances therebetween, and wherein the biasing assembly comprises a tension spring assembly which biases the clamp arms toward one another in a direction toward establishing the lesser separation distance therebetween, whereby a clamping force is exerted against the respective lateral thigh region of the individual, and whereineach of the clamp arms is pivotally connected to a respective one of the slide plates so as to be capable of pivotal movements between a retracted state whereby the clamp arms are positioned adjacent to the base member and an extended state whereby the clamp arms extend outwardly from the base member. 21. The lap-supported device as in claim 20, wherein the biasing assembly comprises torosional hinge springs operatively connected to the clamp arms to exert a bias force to move the clamp arms in a direction of the retracted state thereof. 22. The lap-supported device as in claim 20, which further comprises hinge mechanisms which pivotally connect each of the clamp arms to a respective one of the slide plates. 23. The lap-supported device as in claim 22, wherein the hinge mechanisms include spaced-apart pairs of apertured flanges fixed to the base member, spaced apart apertured posts fixed to each of the clamp arms and coaxially aligned with the flanges, and a hinge pin joining the coaxially aligned apertured flanges and posts. 24. The lap-supported device as in claim 20, wherein the hinge mechanisms include a hinge pin, and wherein biasing assembly comprises a torsional hinge spring which is coaxially carried by the hinge pin. 25. The lap-supported device as in claim 24, wherein the slide plates include a retaining pocket and the clamp arms include a receiving channel, and wherein the torsional hinge spring has one end engaged within a receiving channel of a respective slide plate and an opposite end engaged with a receiving channel of a respective clamp arm. 26. The lap-supported device as in claim 20, wherein each of the clamp arms includes an elongate hand hole. 27. A lap-supported device comprising: a base member;a pair of opposed slide plates connected to the base member for reciprocal sliding movements between retracted and extended positions thereof;a pair of clamp arms extending outwardly from the base member and connected to a respective one of the slide plates so as to be carried by the slide plates during movements between the retracted and extended positions thereof; anda tension spring assembly which operatively connects the slide plates for exerting a bias force to move the slide plates in a direction toward the retracted position thereof so that the clamp arms are moved toward one another in a direction that establishes a lesser separation distance therebetween and thereby exert a clamping force against a respective lateral thigh region of the individual, whereineach of the clamp arms is pivotally connected to a respective one of the slide plates so as to be capable of pivotal movements between a retracted state whereby the clamp arms are positioned adjacent to the base member and an extended state whereby the clamp arms extend outwardly from the base member, and wherein the device further comprises a biasing assembly to urge the clamp arms into the retracted state thereof. 28. The lap-supported device as in claim 27, wherein the biasing assembly comprises torsional hinge springs operatively connected to the clamp arms to exert a bias force to move the clamp arms in a direction of the retracted state thereof. 29. The lap-supported device as in claim 28, which further comprises hinge mechanisms which pivotally connect each of the clamp arms to a respective one of the slide plates. 30. The lap-supported device as in claim 29, wherein the hinge mechanisms include spaced-apart pairs of apertured flanges fixed to the base member, spaced apart apertured posts fixed to each of the clamp arms and coaxially aligned with the flanges, and a hinge pin joining the coaxially aligned apertured flanges and posts. 31. The lap-supported device as in claim 29, wherein the hinge mechanisms include a hinge pin, and wherein biasing assembly comprises a torsional hinge spring which is coaxially carried by the hinge pin. 32. The lap-supported device as in claim 31, wherein the slide plates include a retaining pocket and the clamp arms include a receiving channel, and wherein the torsional hinge spring has one end engaged within a receiving channel of a respective slide plate and an opposite end engaged with a receiving channel of a respective clamp arm. 33. The lap-supported device as in claim 27, wherein the slide plates include a pair of slide rails and a projecting boss which abuts against a respective end of the slide rails to establish the retracted position of the slide plates. 34. A lap-supported device comprising: a base member;a pair of opposed slide plates connected to the base member for reciprocal sliding movements between retracted and extended positions thereof;a pair of clamp arms extending outwardly from the base member and connected to a respective one of the slide plates so as to be carried by the slide plates during movements between the retracted and extended positions thereof; anda tension spring assembly which operatively connects the slide plates for exerting a bias force to move the slide plates in a direction toward the retracted position thereof so that the clamp arms are moved toward one another in a direction that establishes a lesser separation distance therebetween and thereby exert a clamping force against a respective lateral thigh region of the individual, wherein the tension spring assembly comprises a tension spring operatively interconnecting the opposed slide plates. 35. The lap-supported device as in claim 34, wherein each of the slide plates includes a U-shaped channel to accommodate respective ends of the tension spring. 36. The lap-supported device as in claim 35, wherein the slide plates include an upright post, and wherein the respective ends of the tension spring are connected to the upright posts of the slide plates. 37. The lap-supported device as in claim 36, wherein the slide plates comprise a cover member covering the U-shaped channel and the upright post. 38. The lap-supported device as in claim 27, wherein the base member includes an upright post, and wherein the tension spring assembly includes a pair of tension springs interconnecting the upright post of the base member and a respective one of the slide plates. 39. The lap-supported device as in claim 27, further comprising a cover member for covering the tension spring assembly.

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Positionally restrained lap-supported devices

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