Patent US4782540A successfully refreshed from Google Patents.
Patent US3339673A successfully refreshed from Google Patents.
US3339673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetrically expandable energy absorbing material
Assignee: Hexcel Corp
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Filing: 1965-02-11
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Granted: 1967-09-05
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Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 John P Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:42
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROTECTIVE COVER FOR CUSHIONING A RELATIVELY FREELY MOVING OBJECT AGAINST IMPACT WITH A RELATIVELY LARGE, IMMOVABLE AND NON-RESILIENT BODY, COMPRISING: AT LEAST ONE SECTION OF VOLUMETRICALLY EXPANDABLE AND ENERGY ABSORBING HONEYCOMB MATERIAL; AND A FRAME SECURED TO THE SURFACE OF SAID OBJECT FOR ENCLOSING EACH SAID SECTION OF MATERIAL IN COMPACTED CONDITION, SAID FRAME COMPRISING A TOP SECTION, A FLAP SECTION HINGED TO EACH SIDE OF SAID TOP SECTION AND HELD RELEASABLY IN A CLOSED POSITION TO RESTRAIN SAID SECTION OF HONEYCOMB IN A COMPACTED CONDITION AND NORMALLY URGED TO AN OPEN POSITION TO CAUSE THE HONEYCOMB TO EXPAND VOLUMETRICALLY AWAY FROM SAID FRAME, EACH SAID FLAP SECTION SHAPED TO HAVE UNIFORM CONTACT WITH THE OUTER SURFACE OF SAID HONEYCOMB SECTION WHEN THE FLAP SECTIONS ARE IN THE OPEN POSITION AND TO FORM A SINGLE FACED HONEYCOMB SANDWICH WITH THE HONEYCOMB SECTION; WHEREBY THE FORCE OF IMPACT WITH SAID
Claim 2
Dependent Claim
150 words
A PROTECTIVE COVER FOR CUSHIONING A RELATIVELY FREELY MOVING OBJECT AGAINST IMPACT WITH A RELATIVELY LARGE, IMMOVABLE AND NON-RESILIENT BODY, COMPRISING: AT LEAST ONE SECTION OF VOLUMETRICALLY EXPANDABLE AND ENERGY ABSORBING HONEYCOMB MATERIAL; AND A FRAME SECURED TO THE SURFACE OF SAID OBJECT FOR ENCLOSING EACH SAID SECTION OF MATERIAL IN COMPACTED CONDITION, SAID FRAME COMPRISING A TOP SECTION, A FLAP SECTION HINGED TO EACH SIDE OF SAID TOP SECTION AND HELD RELEASABLY IN A CLOSED POSITION TO RESTRAIN SAID SECTION OF HONEYCOMB IN A COMPACTED CONDITION AND NORMALLY URGED TO AN OPEN POSITION TO CAUSE THE HONEYCOMB TO EXPAND VOLUMETRICALLY AWAY FROM SAID FRAME, EACH SAID FLAP SECTION SHAPED TO HAVE UNIFORM CONTACT WITH THE OUTER SURFACE OF SAID HONEYCOMB SECTION WHEN THE FLAP SECTIONS ARE IN THE OPEN POSITION AND TO FORM A SINGLE FACED HONEYCOMB SANDWICH WITH THE HONEYCOMB SECTION; WHEREBY THE FORCE OF IMPACT WITH SAID
References Cited (Backward Citations)
US2973172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |