US4101980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device having a shield for protecting the face of a user
Assignee: Uvex Winter Optik GmbH
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Filing: 1976-04-19
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Granted: 1978-07-25
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Expires: 1996-04-19
Abstract
Abstract A protective device for protecting the face of a user includes a face shield made of flexible, shatterproof plastic and a guard pivotably mounted on the shield and at least partially covering it. The guard is made of scratch-resistant glass. The guard may be mounted over a cutout or opening in the shield and can be pivoted away.
Inventors
- 👤 Walter Stepan
- 👤 Klaus Hennecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:04
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/226; A42B3/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
131 words
A face shielding, protective device for use by a user in connection with a safety helmet comprising, in combination: a contoured face shield of a flexible, transparent, shatterproof plastic, said shield having a front side which is to face away from the user; means on said shield for movably attaching said shield to a helmet, said means for attaching defining a swivel axis; a frame including a shoulder portion, said shoulder being affixed to said front side of said shield; and a guard made of scratch-resistant, mineral safety glass mounted in said frame, said guard being at least partially bent to conform to the contour of said shield and completely covering the field of vision of the user, and wherein said guard is mounted removably and interchangeably on said face shield.
Claim 2
Dependent Claim
131 words
A face shielding, protective device for use by a user in connection with a safety helmet comprising, in combination: a contoured face shield of a flexible, transparent, shatterproof plastic, said shield having a front side which is to face away from the user; means on said shield for movably attaching said shield to a helmet, said means for attaching defining a swivel axis; a frame including a shoulder portion, said shoulder being affixed to said front side of said shield; and a guard made of scratch-resistant, mineral safety glass mounted in said frame, said guard being at least partially bent to conform to the contour of said shield and completely covering the field of vision of the user, and wherein said guard is mounted removably and interchangeably on said face shield.
Claim 3
Dependent Claim
14 words
A protective device according to claim 1, wherein said safety glass is tempered glass.
Claim 4
Dependent Claim
38 words
A protective device according to claim 4, wherein said frame is made of deformable plastic, said guard being fit within said frame on inner and outer edges thereof, and said frame being mounted tightly against said face shield.
Claim 5
Dependent Claim
26 words
A protective device according to claim 1, wherein said face shield has a cutout, said guard being positioned to cover said cutout in said face shield.
Claim 6
Dependent Claim
25 words
A protective device according to claim 4, wherein said cutout has an edge, and wherein said frame is positioned around said edge of said cutout.
Claim 7
Dependent Claim
21 words
A protective device according to claim 5, including a sealing and covering ring fit around said edge on its front side.
Claim 8
Dependent Claim
22 words
A protective device according to claim 1, wherein said guard is provided on its rear side with a coating which prevents fogging.
Claim 9
Dependent Claim
29 words
A protective device according to claim 1, including means for ventilating the inside of said guard, these means being provided in the vicinity of the periphery of said guard.
Claim 10
Dependent Claim
47 words
A protective device according to claim 8, wherein said means for ventilating includes openings which open toward the front of said guard, a slider for closing said openings, and at least one channel communicating with said openings, said channel opening to the inner side of said guard.
Claim 11
Dependent Claim
19 words
A protective device according to claim 9, wherein said at least one channel runs substantially parallel to said guard.
References Cited (Backward Citations)
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US1800558A
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US3081461A
Cited
US3517393A
Cited
US3488215A
Cited
US3858242A
Cited
US3825952A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |