US3323785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring
Assignee: Rockwell-Standard Corp
•
Filing: 1964-09-10
•
Granted: 1967-06-06
•
Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Mather
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/08; F16C25/00; F16C25/06; F16C25/08; F16C25/083; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A RESILIENT ANNULUS COMPRISING A SERIES OF INTERCONNECTED COILS, SAID COILS BEING FORMED SO THAT WHEN SAID ANNULUS IS UNLOADED SAID COILS ARE SLANTED AT AN OBLIQUE ANGLE OF AT LEAST 35* TO THE AXIS OF SAID ANNULUS, SAID ANNULUS THEREBY BEING EFFECTIVE, WITHIN A PREDETERMINED RANGE OF DEFLECTION, TO EXERT SUBSTANTIALLY CONSTANT RESISTANCE TO DEFLECTION UNDER LOADS APPLIED AXIALLY OF SAID
Claim 2
Dependent Claim
62 words
A RESILIENT ANNULUS COMPRISING A SERIES OF INTERCONNECTED COILS, SAID COILS BEING FORMED SO THAT WHEN SAID ANNULUS IS UNLOADED SAID COILS ARE SLANTED AT AN OBLIQUE ANGLE OF AT LEAST 35* TO THE AXIS OF SAID ANNULUS, SAID ANNULUS THEREBY BEING EFFECTIVE, WITHIN A PREDETERMINED RANGE OF DEFLECTION, TO EXERT SUBSTANTIALLY CONSTANT RESISTANCE TO DEFLECTION UNDER LOADS APPLIED AXIALLY OF SAID
References Cited (Backward Citations)
US2859033A
Cited
US3053543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |