US3871779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical connections
Assignee: Individual
•
Filing: 1972-12-19
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Granted: 1975-03-18
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Expires: 1992-12-19
Abstract
Abstract There is disclosed a rotatable mechanical joint and improvements more particularly in but not necessarily limited to artificial legs and other prosthetic devices; the object being to provide a mechanical joint which enables periodic instant braking or cessation of rotation relative to each other of elements connected thereto with the rotatable joint consisting of a threebasic-element wedge-mechanism.
Inventors
- 👤 James W Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:42
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/604; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32434; Y10T403/70; Y10T403/7009; Y10T403/7011; Y10T403/7013
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
57 words
In a mechanical rotatable joint, a driving element and a driven element; and means in contact with said driving and said driven elements for securing the same for concentric rotation therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotatability relative to each other, to thereby restrain the relative rotation therebetween.
Claim 2
Dependent Claim
57 words
In a mechanical rotatable joint, a driving element and a driven element; and means in contact with said driving and said driven elements for securing the same for concentric rotation therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotatability relative to each other, to thereby restrain the relative rotation therebetween.
Claim 3
Dependent Claim
33 words
The combination of claim 1 wherein the said means is in concentric rotatability with one of said driving and said driven elements and in eccentric rotatability with the other of the said elements.
Claim 4
Dependent Claim
26 words
The combination of claim 1 wherein the said means is adjustable to restrain the said relative rotation in one rotative direction while enabling unimpeded reverse rotation.
Claim 5
Dependent Claim
22 words
The combination of claim 1 wherein the said driving and said driven elements are in wedge and groove relationship with each other.
Claim 6
Dependent Claim
20 words
The combination of claim 1 wherein the said driving and said driven elements are in bevel-face relationship with each other.
Claim 7
Dependent Claim
24 words
The combination of claim 1 wherein the said means is in wedge and groove relationship with one of said driving and said driven elements.
Claim 8
Dependent Claim
20 words
The combination of claim 1 wherein there are a plurality of said driving and a plurality of said driven elements.
Claim 9
Dependent Claim
33 words
The combination of claim 1 wherein there are a plurality of said driving and a plurality of said driven elements; and resilient means enabling axial movement of said elements relative to each other.
Claim 10
Dependent Claim
74 words
In a mechanical rotatable joint having opposing extended sections appended thereto, a driving element affixed to one of said sections and a driven element affixed to the other of said sections; and means in contact with said driving and driven elements for securing the same for concentric rotatability therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotation relative to each other, to thereby restrain relative rotation therebetween.
Claim 11
Dependent Claim
74 words
In a mechanical rotatable joint having opposing extended sections appended thereto, a driving element affixed to one of said sections and a driven element affixed to the other of said sections; and means in contact with said driving and driven elements for securing the same for concentric rotatability therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotation relative to each other, to thereby restrain relative rotation therebetween.
Claim 12
Dependent Claim
26 words
The combination of claim 9 wherein the said means is adjustable to restrain the said relative rotation in one rotative direction while enabling unimpeded reverse rotation.
Claim 13
Dependent Claim
74 words
The combination of claim 9 wherein said rotatable joint is part of an artificial leg attached to the leg stump of a wearer and wherein one sAid extended section is provided with extension means independent of said extended section and linked to adjusting said contact means; said extension being in contact with said leg stump and remotely adjusting said contact means to control rotation or flexure of one extended section relative to the other.
Claim 14
Dependent Claim
95 words
In a flexible joint having an upper section and a lower section, a tongued member affixed to one of said sections; a grooved member affixed to the other of said sections and in tongue-and-groove relationship with the said tongued member; and means for securing said members for relative rotation therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotation relative to each other, to restrain the relative rotation therebetween and to thereby restrain the flexure of the upper and lower sections of the flexible joint relative to each other.
Claim 15
Dependent Claim
95 words
In a flexible joint having an upper section and a lower section, a tongued member affixed to one of said sections; a grooved member affixed to the other of said sections and in tongue-and-groove relationship with the said tongued member; and means for securing said members for relative rotation therebetween; said means being adjustable to secure said driving and said driven elements for eccentric rotation relative to each other, to restrain the relative rotation therebetween and to thereby restrain the flexure of the upper and lower sections of the flexible joint relative to each other.
Claim 16
Dependent Claim
26 words
The combination of claim 12 wherein the said means is adjustable to restrain the said relative rotation in one rotative direction while enabling unimpeded reverse rotation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |