US3946466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device for a protective device mounted on a safety headgear
Assignee: Individual
•
Filing: 1974-09-12
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Granted: 1976-03-30
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Expires: 1994-09-12
Abstract
Abstract A clamping device for a protective device mounted on a headgear comprising a clamp member connected to the protective device, a U-shaped receiving portion formed at the lower side of the clamp member for receiving the lower edge of the headgear, at least one clamp screw provided on the clamp member opposite to the receiving portion, a nose formed at the end of the clamp screw and enclosed with a convexly-curved surface, and a hollow presser loosely connected to said clamp screw and enclosing said nose.
Inventors
- 👤 Yoshijiro Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:55
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/225; A42B3/16; A42B3/166; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
191 words
A clamping device for a protective device mounted on a headgear comprising: a clamp member connected to said protective device and having an upper and lower portion; a U-shaped receiving portion formed at the lower side of said clamp member for receiving the lower edge of said headgear; at least one clamp screw provided on said clamp member opposite to said receiving portion so as to clamp said lower edge of said headgear between said at least one clamp screw and said receiving portion; pivot means disposed upon said clamp member for pivotably supporting said protective device upon said headgear; at least one additional clamp screw provided upon said clamp member within said upper portion of said clamp member and above said pivot means for abutting said headgear and thereby stabilizing the clamped connection established between said protective device and said headgear by means of said at least one clamp screw and said receiving portion; a nose formed at the end of each of said clamp screws and enclosed with a convexly curved surface; and a hollow presser loosely connected to each of said clamp screws and enclosing said nose portions.
Claim 2
Dependent Claim
191 words
A clamping device for a protective device mounted on a headgear comprising: a clamp member connected to said protective device and having an upper and lower portion; a U-shaped receiving portion formed at the lower side of said clamp member for receiving the lower edge of said headgear; at least one clamp screw provided on said clamp member opposite to said receiving portion so as to clamp said lower edge of said headgear between said at least one clamp screw and said receiving portion; pivot means disposed upon said clamp member for pivotably supporting said protective device upon said headgear; at least one additional clamp screw provided upon said clamp member within said upper portion of said clamp member and above said pivot means for abutting said headgear and thereby stabilizing the clamped connection established between said protective device and said headgear by means of said at least one clamp screw and said receiving portion; a nose formed at the end of each of said clamp screws and enclosed with a convexly curved surface; and a hollow presser loosely connected to each of said clamp screws and enclosing said nose portions.
Claim 3
Dependent Claim
30 words
A clamping device for a protective device mounted on a headgear as set forth in claim 1, wherein said nose portions of the clamp screws are enclosed with spherical surfaces.
Claim 4
Dependent Claim
38 words
A clamping device for a protective device mounted on a headgear as set forth in claim 1, wherein each of said hollow pressers has a tray-like recess for coming into contact with the lower edge of said headgear.
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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |