US3747271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge
Assignee: Individual
•
Filing: 1971-04-02
•
Granted: 1973-07-24
•
Expires: 1991-04-02
Abstract
Abstract A power operated or counterbalance spring type hinge mechanism is provided wherein movement of the connected closure element is effected from the open to the closed position and vice versa by means of three links which co-act in close coupled relationship to reduce to a minimum the space requirements of the hinge structure.
Inventors
- 👤 R Adamski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:42
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/18; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1246; E05F1/1269; E05F1/1276; E05Y; E05Y2900/00; E05Y2900/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
A hinge assembly comprising first and second bracket members, a guide link, a rocker link and a control link, pivot pins connecting one end of the guide link to the first bracket member and slidably and pivotally connecting the other end thereof to the second bracket member, pivot pins connecting one end of the rocker link to the second bracket member and the other end to one end of the control link, a further pivot pin connecting the rocker link, intermediate its ends to the guide link and a pivot pin connecting the other end of the control link to the first bracket member, including a linear actuator, a pivot pin connecting one end of the linear actuator to the second bracket and a further pivot pin connecting the other end of the linear actuator to the rocker link.
Claim 2
Dependent Claim
139 words
A hinge assembly comprising first and second bracket members, a guide link, a rocker link and a control link, pivot pins connecting one end of the guide link to the first bracket member and slidably and pivotally connecting the other end thereof to the second bracket member, pivot pins connecting one end of the rocker link to the second bracket member and the other end to one end of the control link, a further pivot pin connecting the rocker link, intermediate its ends to the guide link and a pivot pin connecting the other end of the control link to the first bracket member, including a linear actuator, a pivot pin connecting one end of the linear actuator to the second bracket and a further pivot pin connecting the other end of the linear actuator to the rocker link.
Claim 3
Dependent Claim
35 words
The invention defined in claim 1, wherein the pivotal connection between the linear actuator and the rocker link lies between the pivotal connections between the rocker link and the guide link and the control link.
Claim 4
Dependent Claim
14 words
The invention defined in claim 1, wherein the linear actuator comprises a hydraulic ram.
References Cited (Backward Citations)
US2700569A
Cited
US2790887A
Cited
US3190637A
Cited
US3330329A
Cited
US3335783A
Cited
US3362460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |