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US3163262A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydraulic telescopic shock absorbers

Assignee: Individual
•
Filing: 1962-10-31
•
Granted: 1964-12-29
•
Expires: 1982-10-31
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Abstract

No abstract record available.

Inventors

  • 👤 Allinquant Fernand Stanislas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 21:58
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06; F16F9/066; F16F9/067; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 244 words
A HYDRAULIC TELESCOPE SHOCK ABSORBER WHOSE MAIN AXIS EXTENDS AT LEAST SUBSTANTIALLY HORIZONTALLY COMPRISING A WORKING CHAMBER AND A PISTON, SAID PISTON BEING ARRANGED MOVABLY IN SAID WORKING CHAMBER, A RESERVOIR, A LIQUID PARTIALLY FILLING THE LOWER PART OF SAID RESERVOIR AND A COMPRESSED GAS FILLING PARTIALLY THE UPPER PART OF SAID RESERVOIR NOT FILLED BY SAID LIQUID, A PARTITION SEPARATING SAID RESERVOIR AND SAID WORKING CHAMBER, SAID PARTITION PROVIDED WITH A FIRST AND A SECOND SERIES OF BORES, FIRST CHECK VALVE MEANS FOR SAID FIRST SERIES OF BORES AND SECOND CHECK VALVE MEANS FOR SAID SECOND SERIES OF BORES, SAID FIRST CHECK VALVE MEANS PERMITTING FLOW FROM THE WORKING CHAMBER INTO THE RESERVOIR WHEN THE PISTON MOVES TOWARD SAID PARTITION, SAID SECOND CHECK VALVE MEANS PERMITTING FLOW FROM THE RESERVOIR TO THE WORKING CHAMBER WHEN THE PISTON MOVES AWAY FROM SAID PARTITION, SAID FIRST SERIES OF BORES CONTROLLE BY SAID FIRST CHECK VALVE MEANS BEING OPEN AT THE TOP OF SAID WORKING CHAMBER, WHEREBY GAS THAT MAY HAVE ENTERED THE WORKING CHAMBER AND MAY BE EMULSIFIED IS ENABLED TO RETURN TO THE RESERVOIR AND TO BE REPLACED BY LIQUID, SAID FIRST SERIES OF BORES COMPRISING HOLES EXTENDING THROUGH SAID PARTITION AND SUBSTANTIALLY VERTICAL GROOVES FORMING CONTINUATIONS OF SAID HOLES AND BEING HOLLOWED OUT IN THE FACE OF THE PARTITION DEFINING THE WORKING CHAMBER, SAID GROOVES BEING COVERED IN AN AREA ADJACENT THE AXIS OF THE SHOCK ABSORBER BY SAID SECOND CHECK VALVE MEANS.
Claim 2
Dependent Claim 244 words
A HYDRAULIC TELESCOPE SHOCK ABSORBER WHOSE MAIN AXIS EXTENDS AT LEAST SUBSTANTIALLY HORIZONTALLY COMPRISING A WORKING CHAMBER AND A PISTON, SAID PISTON BEING ARRANGED MOVABLY IN SAID WORKING CHAMBER, A RESERVOIR, A LIQUID PARTIALLY FILLING THE LOWER PART OF SAID RESERVOIR AND A COMPRESSED GAS FILLING PARTIALLY THE UPPER PART OF SAID RESERVOIR NOT FILLED BY SAID LIQUID, A PARTITION SEPARATING SAID RESERVOIR AND SAID WORKING CHAMBER, SAID PARTITION PROVIDED WITH A FIRST AND A SECOND SERIES OF BORES, FIRST CHECK VALVE MEANS FOR SAID FIRST SERIES OF BORES AND SECOND CHECK VALVE MEANS FOR SAID SECOND SERIES OF BORES, SAID FIRST CHECK VALVE MEANS PERMITTING FLOW FROM THE WORKING CHAMBER INTO THE RESERVOIR WHEN THE PISTON MOVES TOWARD SAID PARTITION, SAID SECOND CHECK VALVE MEANS PERMITTING FLOW FROM THE RESERVOIR TO THE WORKING CHAMBER WHEN THE PISTON MOVES AWAY FROM SAID PARTITION, SAID FIRST SERIES OF BORES CONTROLLE BY SAID FIRST CHECK VALVE MEANS BEING OPEN AT THE TOP OF SAID WORKING CHAMBER, WHEREBY GAS THAT MAY HAVE ENTERED THE WORKING CHAMBER AND MAY BE EMULSIFIED IS ENABLED TO RETURN TO THE RESERVOIR AND TO BE REPLACED BY LIQUID, SAID FIRST SERIES OF BORES COMPRISING HOLES EXTENDING THROUGH SAID PARTITION AND SUBSTANTIALLY VERTICAL GROOVES FORMING CONTINUATIONS OF SAID HOLES AND BEING HOLLOWED OUT IN THE FACE OF THE PARTITION DEFINING THE WORKING CHAMBER, SAID GROOVES BEING COVERED IN AN AREA ADJACENT THE AXIS OF THE SHOCK ABSORBER BY SAID SECOND CHECK VALVE MEANS.

References Cited (Backward Citations)

US1780531A Cited
US1855064A Cited
GB769319A Cited
FR69446E Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-12-29 1968-06-29 1968-12-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-12-29 1972-06-29 1972-12-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-12-29 1976-06-29 1976-12-29 $7700.00 Window Closed / Lapsed

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