Patent US3128469A successfully refreshed from Google Patents.
US3128469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flying helmets
Assignee: ML Aviation Ltd
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Filing: 1960-08-04
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Granted: 1964-04-14
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Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Lobelle Marcel Jules Odilon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:12
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/228; B; B64; B64D; B64D10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
414 words
A HELMET CAPABLE OF BEING PRESSURIZED AND INCLUDING: A RIGID SHELL HAVING A FRONT OPENING; A VISOR FOR CLOSING SAID OPENING; A PAIR OF SIDE ARM ASSEMBLIES ONE ON EACH SIDE OF SAID SHELL, EACH SAID SIDE ARM ASSEMBLY COMPRISING: AN INNER TUBULAR MEMBER HAVING A FRONT END AND A REAR END AND HAVING A SLOT THERETHROUGH TOWARD SAID FRONT END; MEANS PIVOTALLY MOUNTING SAID INNER TUBULAR MEMBER TO SAID SHELL NEAR SAID REAR END; AN OUTER TUBULAR MEMBER CONCENTRIC WITH AND SURROUNDING SAID INNER TUBULAR MEMBER AND AXIALLY MOVABLE THEREON, SAID OUTER TUBULAR MEMBER HAVING A FRONT END AND A REAR END AND HAVING A SLOT THERETHROUGH TOWARD SAID FRONT END; MEANS FIXING SAID VISOR TO SAID FRONT END OF SAID OUTER TUBULAR MEMBER; A PLUNGER MOUNTED WITHIN AND SLIDABLE WITH RESPECT TO SAID INNER TUBULAR MEMBER, SAID PLUNGER HAVING A FRONT END AND A REAR END; A TOGGLE LINKAGE COMPRISING FIRST AND SECOND TOGGLE MEMBERS EACH OF SAID TOGGLE MEMBERS HAVING A FRONT END AND A REAR END; MEANS PIVOTALLY MOUNTING SAID REAR END OF SAID FIRST TOGGLE MEMBER TO SAID OUTER TUBULAR MEMBER NEAR SAID REAR END OF SAID OUTER TUBULAR MEMBER; MEANS PIVOTALLY CONNECTING SAID FRONT END OF SAID FIRST TOGGLE MEMBER TO SAID REAR END OF SAID SECOND TOGGLE MEMBER; MEANS PIVOTALLY MOUNTING SAID FRONT END OF SAID SECOND TOGGLE MEMBER TO SAID INNER TUBULAR MEMBER NEAR SAID FRONT END OF SAID INNER TUBULAR MEMBERS; MEANS PROJECTING FROM SAID FRONT END OF SAID SECOND TOGGLE MEMBER THROUGH SAID SLOTS IN SAID INNER AND OUTER TUBULAR MEMBERS AND INTO CONTACT WITH SAID FRONT END OF SAID PLUNGER; A BELL CRANK LEVER HAVING FIRST AND SECOND ARMS; MEANS PIVOTING SAID BELL CRANK LEVER TO SAID INNER TUBULAR MEMBER WHEREBY SAID FIRST ARM OF SAID BELL CRANK LEVER BEARS ON SAID REAR END OF SAID PLUNGER; AND A LINK HAVING FIRST AND SECOND ENDS, AND MEANS PIVOTING SAID FIRST END OF SAID LINK TO SAID SECOND ARM OF SAID BELL CRANK LEVER; TENSION SPRING MEANS AT EACH SIDE OF SAID HELMET AND EACH CONNECTED TO SAID SECOND END OF SAID LINK OF SAID SIDE ARM ASSEMBLY AT THAT SIDE OF SAID SHELL AND EXTENDING FROM SAID LINK UP THAT SIDE OF SAID SHELL, SAID TENSION SPRING MEANS THUS ACTING ON SAID VISOR THROUGH SAID SIDE ARM ASSEMBLIES TO BIAS SAID VISOR TO A CLOSED POSITION AND TO URGE SAID VISOR REARWARDLY; A SPRING LOADED CATCH MOUNTED ON SAID SHELL TO HOLD SAID
Claim 2
Dependent Claim
414 words
A HELMET CAPABLE OF BEING PRESSURIZED AND INCLUDING: A RIGID SHELL HAVING A FRONT OPENING; A VISOR FOR CLOSING SAID OPENING; A PAIR OF SIDE ARM ASSEMBLIES ONE ON EACH SIDE OF SAID SHELL, EACH SAID SIDE ARM ASSEMBLY COMPRISING: AN INNER TUBULAR MEMBER HAVING A FRONT END AND A REAR END AND HAVING A SLOT THERETHROUGH TOWARD SAID FRONT END; MEANS PIVOTALLY MOUNTING SAID INNER TUBULAR MEMBER TO SAID SHELL NEAR SAID REAR END; AN OUTER TUBULAR MEMBER CONCENTRIC WITH AND SURROUNDING SAID INNER TUBULAR MEMBER AND AXIALLY MOVABLE THEREON, SAID OUTER TUBULAR MEMBER HAVING A FRONT END AND A REAR END AND HAVING A SLOT THERETHROUGH TOWARD SAID FRONT END; MEANS FIXING SAID VISOR TO SAID FRONT END OF SAID OUTER TUBULAR MEMBER; A PLUNGER MOUNTED WITHIN AND SLIDABLE WITH RESPECT TO SAID INNER TUBULAR MEMBER, SAID PLUNGER HAVING A FRONT END AND A REAR END; A TOGGLE LINKAGE COMPRISING FIRST AND SECOND TOGGLE MEMBERS EACH OF SAID TOGGLE MEMBERS HAVING A FRONT END AND A REAR END; MEANS PIVOTALLY MOUNTING SAID REAR END OF SAID FIRST TOGGLE MEMBER TO SAID OUTER TUBULAR MEMBER NEAR SAID REAR END OF SAID OUTER TUBULAR MEMBER; MEANS PIVOTALLY CONNECTING SAID FRONT END OF SAID FIRST TOGGLE MEMBER TO SAID REAR END OF SAID SECOND TOGGLE MEMBER; MEANS PIVOTALLY MOUNTING SAID FRONT END OF SAID SECOND TOGGLE MEMBER TO SAID INNER TUBULAR MEMBER NEAR SAID FRONT END OF SAID INNER TUBULAR MEMBERS; MEANS PROJECTING FROM SAID FRONT END OF SAID SECOND TOGGLE MEMBER THROUGH SAID SLOTS IN SAID INNER AND OUTER TUBULAR MEMBERS AND INTO CONTACT WITH SAID FRONT END OF SAID PLUNGER; A BELL CRANK LEVER HAVING FIRST AND SECOND ARMS; MEANS PIVOTING SAID BELL CRANK LEVER TO SAID INNER TUBULAR MEMBER WHEREBY SAID FIRST ARM OF SAID BELL CRANK LEVER BEARS ON SAID REAR END OF SAID PLUNGER; AND A LINK HAVING FIRST AND SECOND ENDS, AND MEANS PIVOTING SAID FIRST END OF SAID LINK TO SAID SECOND ARM OF SAID BELL CRANK LEVER; TENSION SPRING MEANS AT EACH SIDE OF SAID HELMET AND EACH CONNECTED TO SAID SECOND END OF SAID LINK OF SAID SIDE ARM ASSEMBLY AT THAT SIDE OF SAID SHELL AND EXTENDING FROM SAID LINK UP THAT SIDE OF SAID SHELL, SAID TENSION SPRING MEANS THUS ACTING ON SAID VISOR THROUGH SAID SIDE ARM ASSEMBLIES TO BIAS SAID VISOR TO A CLOSED POSITION AND TO URGE SAID VISOR REARWARDLY; A SPRING LOADED CATCH MOUNTED ON SAID SHELL TO HOLD SAID
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |