Leg Rest Release Assembly and Method of Assembling the Same
First Claim
1. A mechanical retention apparatus, comprising:
- a first cylindrical housing and a second cylindrical housing, the first cylindrical housing having internal threads, the second cylindrical housing having a threaded end that is complementary with the internal threads such that the internal threads and the threaded end can engage to form a nested cylindrical housing assembly; and
a unitary shaft-stem assembly comprising a push-button, a stem, and a shaft, wherein the shaft is perdurably connected to the push-button;
wherein the unitary shaft-stem assembly is disposed along an axial center of the nested cylindrical housing assembly.
2 Assignments
0 Petitions
Accused Products
Abstract
A mechanical retention apparatus suitable for serving as a leg rest release for a wheelchair is provided. The mechanical retention apparatus includes a first cylindrical housing (306) and a second cylindrical housing (304). The first cylindrical housing (306) has interior threads (413), while the second cylindrical housing (304) has a threaded end (313) that is complementary with the internal threads such that the internal threads and the threaded end can engage to form a nested cylindrical housing assembly (311). A unitary shaft-stem assembly (310) includes a push-button (301), a stem (303), and a shaft (302). The shaft (302) can be perdurably connected to the push-button (301) to prevent separation. An axial length (402) of the nested cylindrical housing assembly (311) can be adjusted by rotating the first cylindrical housing (306) relative to the second cylindrical housing (304).
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Citations
20 Claims
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1. A mechanical retention apparatus, comprising:
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a first cylindrical housing and a second cylindrical housing, the first cylindrical housing having internal threads, the second cylindrical housing having a threaded end that is complementary with the internal threads such that the internal threads and the threaded end can engage to form a nested cylindrical housing assembly; and a unitary shaft-stem assembly comprising a push-button, a stem, and a shaft, wherein the shaft is perdurably connected to the push-button; wherein the unitary shaft-stem assembly is disposed along an axial center of the nested cylindrical housing assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of assembling a mechanical retention apparatus, comprising:
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inserting a first cylindrical housing into a second cylindrical housing; rotating the first cylindrical housing relative to the second cylindrical housing to engage a threaded end of the first cylindrical housing with complementary internal threads of the second cylindrical housing to form a nested cylindrical housing assembly; and inserting a unitary shaft-stem assembly into the nested cylindrical housing assembly, wherein the unitary shaft-stem assembly comprises a push-button, a stem, and a shaft, with the shaft perdurably connected to the push-button. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of using a mechanical retention device, comprising:
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rotating a first cylindrical housing relative to a second cylindrical housing to create a predetermined axial length of a nested cylindrical housing assembly; pressing a push-button of a unitary shaft-stem assembly into the nested cylindrical housing assembly, wherein the unitary shaft-stem assembly comprises a stem and a shaft, with the shaft perdurably connected to the push-button; wherein the pressing results in the stem extending beyond the second cylindrical housing, thereby permitting a ball bearing disposed within the second cylindrical housing to withdraw into the second cylindrical housing. - View Dependent Claims (20)
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Specification