US4141085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented helmet and face shield
Assignee: Individual
•
Filing: 1977-09-22
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Granted: 1979-02-27
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Expires: 1997-09-22
Abstract
Abstract A safety helmet has a plurality of air vents formed therein in mutually spaced relation. A face shield is affixed to the helmet and has a plurality of air vents formed therein in mutually spaced relation.
Inventors
- 👤 John Adams, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:39
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/281; A42B3/283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A vented helmet and face shield, comprising a safety helmet having a plurality of air vents formed therein in mutually spaced relation; and a face shield affixed to the helmet and having a plurality of air vents formed therein in mutually spaced relation, each of the air vents having a movable closing member and being selectively openable and closable via the closing member, each of said air vents comprising a slot, a raised cover over the slot spaced from the corresponding one of the helmet and face plate to form an opening, a pair of spaced parallel grooves formed in the cover on opposite sides of the opening and extending along the length of the opening and a closing member movably mounted in the grooves in a manner whereby said closing member selectively opens and closes the opening to a desired extent when it is inserted in said grooves.
Claim 2
Dependent Claim
149 words
A vented helmet and face shield, comprising a safety helmet having a plurality of air vents formed therein in mutually spaced relation; and a face shield affixed to the helmet and having a plurality of air vents formed therein in mutually spaced relation, each of the air vents having a movable closing member and being selectively openable and closable via the closing member, each of said air vents comprising a slot, a raised cover over the slot spaced from the corresponding one of the helmet and face plate to form an opening, a pair of spaced parallel grooves formed in the cover on opposite sides of the opening and extending along the length of the opening and a closing member movably mounted in the grooves in a manner whereby said closing member selectively opens and closes the opening to a desired extent when it is inserted in said grooves.
References Cited (Backward Citations)
FR1380221A
Cited
US3423758A
Cited
US3496854A
Cited
US3517393A
Cited
US3783450A
Cited
US3925821A
Cited
US4081865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |