US3091771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear cup assembly for helmets
Assignee: MSA Safety Inc
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Filing: 1961-10-16
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Granted: 1963-06-04
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Guy T Bixby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:36
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/16; A42B3/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
AN EAR CUP ASSEMBLY FOR THE INSIDE OF A HELMET, COMPRISING AN UPRIGHT FRAME HAVING INNER AND OUTER SIDES AND FRONT AND BACK MARGINAL PORTIONS, AN EAR CUP SUPPORTED BY THE INNER SIDE OF THE FRAME, AN UPRIGHT SUPPORTING MEMBER SPACED FROM THE OUTER SIDE OF THE FRAME, FOUR U-SHAPE WIRE SPRINGS, EACH SPRING HAVING ONE END ABOVE AND THE OTHER END BELOW SAID FRAME, MEANS PIVOTALLY CONNECTING THE UPPER ENDS OF THE SPRINGS TOGETHER ON AN UPRIGHT AXIS, MEANS IN AXIAL ALIGNMENT WITH SAID FIRST-MENTIONED MEANS PIVOTALLY CONNECTING THE LOWER ENDS OF THE SPRINGS TOGETHER, TWO OF SAID SPRINGS DIVERGING INWARD FROM SAID PIVOTAL MEANS TOWARD SAID FRAME AND THE OTHER TWO SPRINGS DIVERGING OUTWARD TOWARD SAID SUPPORTING MEMBER, MEANS SECURING THE CENTRAL PORTIONS OF THE TWO INNER SPRINGS TO THE FRAME AT ITS FRONT AND BACK MARGINAL PORTIONS, MEANS SECURING THE CENTRAL PORTIONS OF THE TWO OUTER SPRINGS TO THE SUPPORTING MEMBER AT ITS FRONT AND BACK, THE SPRINGS URGING THE FRAME AWAY FROM THE SUPPORTING MEMBER, AND FLEXIBLE MEANS LIMITING THE DISTANCE THE SPRINGS CAN SPREAD THE SUPPORTING MEMBER AND FRAME APART.
Claim 2
Dependent Claim
185 words
AN EAR CUP ASSEMBLY FOR THE INSIDE OF A HELMET, COMPRISING AN UPRIGHT FRAME HAVING INNER AND OUTER SIDES AND FRONT AND BACK MARGINAL PORTIONS, AN EAR CUP SUPPORTED BY THE INNER SIDE OF THE FRAME, AN UPRIGHT SUPPORTING MEMBER SPACED FROM THE OUTER SIDE OF THE FRAME, FOUR U-SHAPE WIRE SPRINGS, EACH SPRING HAVING ONE END ABOVE AND THE OTHER END BELOW SAID FRAME, MEANS PIVOTALLY CONNECTING THE UPPER ENDS OF THE SPRINGS TOGETHER ON AN UPRIGHT AXIS, MEANS IN AXIAL ALIGNMENT WITH SAID FIRST-MENTIONED MEANS PIVOTALLY CONNECTING THE LOWER ENDS OF THE SPRINGS TOGETHER, TWO OF SAID SPRINGS DIVERGING INWARD FROM SAID PIVOTAL MEANS TOWARD SAID FRAME AND THE OTHER TWO SPRINGS DIVERGING OUTWARD TOWARD SAID SUPPORTING MEMBER, MEANS SECURING THE CENTRAL PORTIONS OF THE TWO INNER SPRINGS TO THE FRAME AT ITS FRONT AND BACK MARGINAL PORTIONS, MEANS SECURING THE CENTRAL PORTIONS OF THE TWO OUTER SPRINGS TO THE SUPPORTING MEMBER AT ITS FRONT AND BACK, THE SPRINGS URGING THE FRAME AWAY FROM THE SUPPORTING MEMBER, AND FLEXIBLE MEANS LIMITING THE DISTANCE THE SPRINGS CAN SPREAD THE SUPPORTING MEMBER AND FRAME APART.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |