US3673609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective helmet
Assignee: United States Department of the Navy
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Filing: 1971-01-27
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Granted: 1972-07-04
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Expires: 1991-01-27
Abstract
Abstract A protective helmet having pads disposed therein for distributing and cushioning the head of a wearer from impacts to the outside of the helmet. The pads are formed from spacer cloth arranged in layers having resilient properties for energy absorption of the impact, each pad having segments of nylon fastener tape attached to one side and an open weave cloth covering on the other side allowing free permeability of air. The nylon fastener tape attaches to felt strips contiguously attached within the helmet, by which the pads are mounted in the helmet, allowing for easy replacement.
Inventors
- 👤 David N De Simone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:37
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/12; A42B3/125; A42B3/127; A42B3/28
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
A protective device for attenuating impacts to the wearer comprising, in combination: protective shell means formed to surround vulnerable areas of the wearer for distributing a concentrated impact; resilient attenuation means disposed within said shell means intermediate said shell means and the wearer for attenuating said impact and including a plurality of resilient cloth layers the areas thereof formed to cover the desired area, each layer formed of continuous undulated filaments and in combination with other layers forming a compliant area, first and second coverings respectively adjacent the uppermost and lowermost surfaces of said layers, an endless tape joined at the respective edges thereof to the respective peripheries of said coverings, said second covering formed to be attached on the outside thereof to said fastener tape; and separable attachment means affixed to said attenuation means and operatively connected to said shell means.
Claim 2
Dependent Claim
142 words
A protective device for attenuating impacts to the wearer comprising, in combination: protective shell means formed to surround vulnerable areas of the wearer for distributing a concentrated impact; resilient attenuation means disposed within said shell means intermediate said shell means and the wearer for attenuating said impact and including a plurality of resilient cloth layers the areas thereof formed to cover the desired area, each layer formed of continuous undulated filaments and in combination with other layers forming a compliant area, first and second coverings respectively adjacent the uppermost and lowermost surfaces of said layers, an endless tape joined at the respective edges thereof to the respective peripheries of said coverings, said second covering formed to be attached on the outside thereof to said fastener tape; and separable attachment means affixed to said attenuation means and operatively connected to said shell means.
Claim 3
Dependent Claim
19 words
A protective device according to claim 1, further comprising: said first covering forming a porous weave permeable to air.
Claim 4
Dependent Claim
24 words
A protective device according to claim 2, further comprising: said endless tape including a multiplicity of vent openings for permitting air to permeate therethrough.
Claim 5
Dependent Claim
42 words
A protective device according to claim 1 wherein: the one of said layers adjacent to said first covering being formed of continuous undulated filaments woven in a tight weave relative to the other of said layers for providing a fine grid interface.
Claim 6
Dependent Claim
97 words
A resilient force attenuation pad for attenuating force applied to a wearer comprising, in combination: a plurality of resilient cloth layers the areas thereof formed to cover the desired area, each layer formed of continuous undulated filaments and in combination with the other layers forming a compliant area, first and second coverings respectively adjacent the uppermost and lowermost surfaces of said layers, an endless tape joined at the respective edges thereof to the respective peripheries of said coverings and fastener tape attached on the outside surface of said second covering formed to attach to any fibrous material.
Claim 7
Dependent Claim
97 words
A resilient force attenuation pad for attenuating force applied to a wearer comprising, in combination: a plurality of resilient cloth layers the areas thereof formed to cover the desired area, each layer formed of continuous undulated filaments and in combination with the other layers forming a compliant area, first and second coverings respectively adjacent the uppermost and lowermost surfaces of said layers, an endless tape joined at the respective edges thereof to the respective peripheries of said coverings and fastener tape attached on the outside surface of said second covering formed to attach to any fibrous material.
Claim 8
Dependent Claim
19 words
A resilient pad according to claim 5, further comprising: said first covering forming a porous weave permeable to air.
Claim 9
Dependent Claim
24 words
A resilient pad according to claim 6, further comprising: said endless tape including a multiplicity of vent openings for permitting air to permeate therethrough.
Claim 10
Dependent Claim
43 words
A resilient pad according to claim 7, further comprising: the one of said layers adjacent to said first covering being formed of continuous undulated filaments woven in a tight weave relative to the other of said layers for providing a fine grid interface.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |