US3795014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear protector
Assignee: FIBRE METAL PROD CO
•
Filing: 1972-05-04
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Granted: 1974-03-05
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Expires: 1992-05-04
Abstract
Abstract An ear protector wherein a generally flat mounting plate is sized and configured to extend beyond a wearer''s ear entirely thereabout and provided centrally with an inwardly depressed region having a through opening. Headband connection means connects to the plate through the opening, while a resiliently compressible endless head engaging formation extends peripherally about the plate and sound attenuating sheet means extend across the plate within the bead.
Inventors
- 👤 J Simpson
- 👤 H Ruck
- 👤 C Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:42
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
194 words
A relatively flat, compact ear protector comprising a generally flat outer plate for location with one side inwardly facing toward a wearer''s ear, said plate having an outline configuration and sized to cover and extend beyond the ear about the entire plate periphery, said plate having a generally spherical concavo-convex medial region spaced inwardly from the plate periphery defining a protrusion on said one plate side protruding inwardly toward a wearer''s ear and a cavity on the outer side facing away from the wearer''s ear surrounded by a flat peripheral margin, said region having a central through opening spaced within the outline configuration of said spherical medial region, head band connection means extending through said opening and adjustably engaging said medial region for selective positioning of said plate, a resiliently compressible endless bead secured on said one plate side extending entirely about the peripheral plate margin for surrounding the ear and conformably engaging the wearer''s head, and sound absorbing sheet means on said one side of said plate extending entirely across the space within said endless bead, said sheet means assuming the convex configuration of said protrusion, with its central portion within said bead.
Claim 2
Dependent Claim
194 words
A relatively flat, compact ear protector comprising a generally flat outer plate for location with one side inwardly facing toward a wearer''s ear, said plate having an outline configuration and sized to cover and extend beyond the ear about the entire plate periphery, said plate having a generally spherical concavo-convex medial region spaced inwardly from the plate periphery defining a protrusion on said one plate side protruding inwardly toward a wearer''s ear and a cavity on the outer side facing away from the wearer''s ear surrounded by a flat peripheral margin, said region having a central through opening spaced within the outline configuration of said spherical medial region, head band connection means extending through said opening and adjustably engaging said medial region for selective positioning of said plate, a resiliently compressible endless bead secured on said one plate side extending entirely about the peripheral plate margin for surrounding the ear and conformably engaging the wearer''s head, and sound absorbing sheet means on said one side of said plate extending entirely across the space within said endless bead, said sheet means assuming the convex configuration of said protrusion, with its central portion within said bead.
Claim 3
Dependent Claim
35 words
An ear protector according to claim 1, said sheet means being of constant thickness and having its edge margins extending in full thickness sandwiched relation between said bead and the peripheral margin of said plate.
Claim 4
Dependent Claim
16 words
An ear protector according to claim 1, said sheet means comprising sheets of foam and fabric.
Claim 5
Dependent Claim
28 words
An ear protector according to claim 1, said head band connection means being located in the cavity of said medial region to minimize projection from the wearer''s head.
References Cited (Backward Citations)
US2545552A
Cited
US2989598A
Cited
US3327318A
Cited
US3454964A
Cited
US3456263A
Cited
US3728741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |