US3365725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety helmet
Assignee: American Safety Equipment Corp
•
Filing: 1966-02-10
•
Granted: 1968-01-30
•
Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Daniel D Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:42
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A SAFETY HELMET COMPRISING A GENERALLY DOMESHAPED SHOCK RESISTING A SHOCK ABSORBING SHELL, THE IMPROVEMENT WHICH COMPRISES: A RESILIENT CROWN PAD OF SUFFICIENT THICKNESS TO PROVIDE CUSHIONING BETWEEN THE HEAD OF THE WEARER AND THE INNER SURFACE OF THE HELMET SHELL; MEANS SUSPENDING SAID PAD FROM THE APEX OF THE SHELL INTERIOR; AN ENVELOPE ENCASING SAID RESILIENT PAD, SAID ENVELOPE BEING NON-POROUS EXCEPT FOR A SMALL ORIFICE IN THE TOP CENTRAL PORTION THEREOF, SAID ORIFICE BEING NORMALLY FREE FROM CONTACT WITH THE INTERIOR SURFACE OF THE SHELL, THEREBY TO ALLOW FREE FLOW TO AND FROM THE INTERIOR OF SAID PAD, SAID ORIFICE UPON SUDDEN DOWNWARD IMPACT TO THE HELMET BEING CLOSED BY FACE TO FACE CONTACT BETWEEN THE TOP OF SAID ENVELOPE AND THE INTERIOR SURFACE OF THE SHELL, THEREBY TO PREVENT THE ESCAPE OF AIR FROM SAID PAD.
Claim 2
Dependent Claim
140 words
IN A SAFETY HELMET COMPRISING A GENERALLY DOMESHAPED SHOCK RESISTING A SHOCK ABSORBING SHELL, THE IMPROVEMENT WHICH COMPRISES: A RESILIENT CROWN PAD OF SUFFICIENT THICKNESS TO PROVIDE CUSHIONING BETWEEN THE HEAD OF THE WEARER AND THE INNER SURFACE OF THE HELMET SHELL; MEANS SUSPENDING SAID PAD FROM THE APEX OF THE SHELL INTERIOR; AN ENVELOPE ENCASING SAID RESILIENT PAD, SAID ENVELOPE BEING NON-POROUS EXCEPT FOR A SMALL ORIFICE IN THE TOP CENTRAL PORTION THEREOF, SAID ORIFICE BEING NORMALLY FREE FROM CONTACT WITH THE INTERIOR SURFACE OF THE SHELL, THEREBY TO ALLOW FREE FLOW TO AND FROM THE INTERIOR OF SAID PAD, SAID ORIFICE UPON SUDDEN DOWNWARD IMPACT TO THE HELMET BEING CLOSED BY FACE TO FACE CONTACT BETWEEN THE TOP OF SAID ENVELOPE AND THE INTERIOR SURFACE OF THE SHELL, THEREBY TO PREVENT THE ESCAPE OF AIR FROM SAID PAD.
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |