US4058854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective helmet
Assignee: Individual
•
Filing: 1975-12-09
•
Granted: 1977-11-22
•
Expires: 1995-12-09
Abstract
Abstract Various embodiments of energy absorbing, protective helmets constructed of resilient foam means covered with a tough, pliable surface coating. The helmets are adapted to be worn on a person's head and have openings therein generally conforming to a person's eyes, ears, nose, mouth and chin. In modifications of the helmet, fixed or removable transparent shield means are mounted across the front openings and hemispherical plate means can be disposed at the top of the helmet. Other modifications of the helmet provide guard means across the front openings, and an additional hard outer protective liner covering the upper part of the helmet.
Inventors
- 👤 Jhoon Goo Rhee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/08; A63B71/10; A42; A42B; A42B3/00; A42B3/04; A42B3/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
A protective helmet adapted to be worn on a person's head and capable of absorbing energy and generally conforming to the shape of the person's head, said helmet constructed entirely of resilient foam means covered with a tough, pliable surface casing completely enclosing said foam means, said helmet comprising openings in said helmet which are generally contoured in shape to conform to the periphery of the person's ears and chin, a single opening which is generally contoured in shape to conform to the periphery of the person's eyes, nose and mouth, the rear of said helmet being generally open and including a flap member adapted to protect the rear of the head and to aid in the putting on and taking off of said helmet, the upper outer portion of said helmet having secured thereto a liner of a hard impact-resistant material.
Claim 2
Dependent Claim
142 words
A protective helmet adapted to be worn on a person's head and capable of absorbing energy and generally conforming to the shape of the person's head, said helmet constructed entirely of resilient foam means covered with a tough, pliable surface casing completely enclosing said foam means, said helmet comprising openings in said helmet which are generally contoured in shape to conform to the periphery of the person's ears and chin, a single opening which is generally contoured in shape to conform to the periphery of the person's eyes, nose and mouth, the rear of said helmet being generally open and including a flap member adapted to protect the rear of the head and to aid in the putting on and taking off of said helmet, the upper outer portion of said helmet having secured thereto a liner of a hard impact-resistant material.
Claim 3
Dependent Claim
24 words
The helmet of claim 1 wherein said liner comprises a one-piece shell comforming to the outer surfaces of the upper portion of said helmet.
Claim 4
Dependent Claim
23 words
The helmet of claim 1 wherein said resilient foam means is a plastic foam and said casing is a tough pliable plastic material.
Claim 5
Dependent Claim
30 words
The helmet of claim 1 wherein a guard member comprising a generally forwardly-curved, inverted y-member is disposed across said single opening generally conforming to a person's eyes, nose and mouth.
Claim 6
Dependent Claim
29 words
The helmet of claim 1 wherein a removable guard member comprising a generally forwardly-curved, inverted Y-member is disposed in hole means contained in the periphery of said single opening
Claim 7
Dependent Claim
24 words
The helmet of claim 1 wherein said liner is permanently secured and conforms to the shape of the outer upper portion of said helmet.
Claim 8
Dependent Claim
27 words
The helmet of claim 1 wherein said liner horizontally encircles the helmet and has downwardly extending portions in the peripheral areas of a person's eyes and ears.
Claim 9
Dependent Claim
12 words
The helmet of claim 1 wherein said liner is a plastic material.
Claim 10
Dependent Claim
11 words
The helmet of claim 1 wherein said liner is a metal.
Claim 11
Dependent Claim
45 words
The helmet of claim 1 wherein the upper part of said helmet has a pair of cross-members adapted to retain the helmet on a person's head and said liner has matching cross-members secured to said helmet cross-members and cut out portions which permit air flow.
References Cited (Backward Citations)
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Cited
US2364571A
Cited
US2535434A
Cited
US2777127A
Cited
US3568210A
Cited
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Cited
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Cited
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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) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |