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US3843015A Expired / Lapsed US ⏱️ 0.0 years remaining

Screw cap for containers

Assignee: Blau KG Fabrik fuer Kraftfahrzeugteile
•
Filing: 1973-01-26
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Granted: 1974-10-22
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Expires: 1993-01-26
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Abstract

Abstract A screw cap for containers, comprising a cap part and a threaded part, said cap part being mounted on and rotatable with respect to said threaded part, said cap part having a pressed-out hand grip arranged thereacross, means for coupling together said cap part and said threaded part comprising a bridge part, bearing limbs provided on said bridge part and spring means biasing said bridge part, said threaded part including grooves therein for guiding said bearing limbs, said spring means being located between said bridge part and said threaded part and urging said bridge part against said cap part and acting in such a manner that, on reaching a predetermined tightening torque of said threaded part in a thread, automatic decoupling of said parts occurs thereby preventing excessive tightening of said threaded part.

Inventors

  • 👤 W Blau
  • 👤 T Gerdes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:00
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F16J13/12

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 133 words
A screw cap for containers, comprising a cap part and a threaded part, said cap part being mounted on and rotatable with respect to said threaded part, said cap part having a pressed-out hand grip arranged thereacross, means for coupling together said cap part and said threaded part comprising a bridge part, bearing limbs provided on said bridge part and spring means biasing said bridge part, said threaded part including grooves therein for guiding said bearing limbs, said spring means being located between said bridge part and said threaded part and urging said bridge part against said cap part and acting in such a manner that, on reaching a predetermined tightening torque of said threaded part in a thread, automatic decoupling of said parts occurs thereby preventing excessive tightening of said threaded part.
Claim 2
Dependent Claim 133 words
A screw cap for containers, comprising a cap part and a threaded part, said cap part being mounted on and rotatable with respect to said threaded part, said cap part having a pressed-out hand grip arranged thereacross, means for coupling together said cap part and said threaded part comprising a bridge part, bearing limbs provided on said bridge part and spring means biasing said bridge part, said threaded part including grooves therein for guiding said bearing limbs, said spring means being located between said bridge part and said threaded part and urging said bridge part against said cap part and acting in such a manner that, on reaching a predetermined tightening torque of said threaded part in a thread, automatic decoupling of said parts occurs thereby preventing excessive tightening of said threaded part.
Claim 3
Dependent Claim 34 words
A screw cap according to claim 1, wherein said threaded part is formed with a retroverted cup extending thereinto, said guide grooves being formed in said cup for the mounting of said bridge part.
Claim 4
Dependent Claim 25 words
A screw cap according to claim 1, wherein said threaded part has a recess therein for the location and lateral guidance of said compression spring.
Claim 5
Dependent Claim 28 words
A screw cap according to claim 1, wherein said bridge part has a mandrel-like part projecting downwardly therefrom, which engages within said spring means for the retention thereof.
Claim 6
Dependent Claim 29 words
A screw cap according to claim 1, wherein said bridge part has a hollow recessed in the Underside thereof, said spring means being extended upwards to within said hollow.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

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