US3648328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge
Assignee: Individual
•
Filing: 1970-03-24
•
Granted: 1972-03-14
•
Expires: 1990-03-24
Abstract
Abstract A hinge means comprises complimentally configured hinge portions having curved surfaces which cooperate to provide ball and socket action over at least 180* degrees of travel.
Inventors
- 👤 Francis J Mccabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
48 words
A hinge comprising two complimentally configured elements arranged to provide continuous ball and socket actions over at least 180 degrees of articulation about a common center of rotation, said elements comprising two pairs of balls and sockets formed by diametrically opposed arcs of concentric circles of different radii.
Claim 2
Dependent Claim
48 words
A hinge comprising two complimentally configured elements arranged to provide continuous ball and socket actions over at least 180 degrees of articulation about a common center of rotation, said elements comprising two pairs of balls and sockets formed by diametrically opposed arcs of concentric circles of different radii.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein the arcs on each element are connected by means limiting the extent of articulation.
Claim 4
Dependent Claim
13 words
The invention of claim 1 wherein said arcs are at least 90 degrees.
Claim 5
Dependent Claim
29 words
The invention of claim 1 wherein each of said elements has means providing a ball and a socket for mating with the socket and ball respectively, of the other.
Claim 6
Dependent Claim
31 words
The invention of claim 2 wherein each of the limiting means comprises a straight portion of the element tangent to one arc and a curved portion tangent to said straight portion.
Claim 7
Dependent Claim
17 words
The invention of claim 5 wherein said straight portions are tangent to the arcs of smaller radii.
References Cited (Backward Citations)
US358269A
Cited
US1316579A
Cited
US1144090A
Cited
US1417984A
Cited
US1715538A
Cited
GB443930A
Cited
US2145926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |