US3715075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-part screw closure cover
Assignee: Individual
•
Filing: 1971-06-18
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Granted: 1973-02-06
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Expires: 1991-06-18
Abstract
Abstract A two-part screw closure cover for containers or a pipe or tube socket, comprising coupling members in mutual engagement for connecting purposes and having a ratchet-like action, for automatic disengagement upon reaching a predetermined tightening torque of the cover, in which the coupling members are outwardly supported between both mutually freely rotatably mounted cover parts and are mounted in the inner circumference of one part of the cover, which coupling parts, which are provided with groovelike recesses, co-operate, in a radial direction, with a coupling means engaging with a ratchet-like action in the other part of the cover and, when a predetermined tightening torque for the screw cover part is reached, automatically disengage therefrom.
Inventors
- 👤 W Blau
- 👤 T Gerdes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/16; B65D39/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
105 words
A two-part screw closure cover comprising coupling members in mutual engagement for connecting purposes and having a ratchetlike action, for automatic disengagement upon reaching a predetermined tightening torque of the cover, in which the coupling members are outwardly supported between both mutually freely rotatably mounted cover parts and are mounted in the inner circumference of one part of the cover, which coupling parts, which are provided with groove-like recesses, co-operate, in a radial direction, with coupling means engaging with a ratchetlike action in the other part of the cover and, when a predetermined tightening torque for the screw cover part is reached, automatically disengage therefrom.
Claim 2
Dependent Claim
105 words
A two-part screw closure cover comprising coupling members in mutual engagement for connecting purposes and having a ratchetlike action, for automatic disengagement upon reaching a predetermined tightening torque of the cover, in which the coupling members are outwardly supported between both mutually freely rotatably mounted cover parts and are mounted in the inner circumference of one part of the cover, which coupling parts, which are provided with groove-like recesses, co-operate, in a radial direction, with coupling means engaging with a ratchetlike action in the other part of the cover and, when a predetermined tightening torque for the screw cover part is reached, automatically disengage therefrom.
Claim 3
Dependent Claim
105 words
A two-part screw closure cover comprising coupling members in mutual engagement for connecting purposes and having a ratchet-like action, for automatic disengagement upon reaching a predetermined tightening torque of the cover, in which the coupling members are outwardly supported between both mutually freely rotatably mounted cover parts and are mounted in the inner circumference of one part of the cover, which coupling parts, which are provided with groove-like recesses, co-operate, in a radial direction, with coupling means engaging with a ratchet-like action in the other part of the cover and, when a predetermined tightening torque for the screw cover part is reached, automatically disengage therefrom.
Claim 4
Dependent Claim
105 words
A two-part screw closure cover comprising coupling members in mutual engagement for connecting purposes and having a ratchet-like action, for automatic disengagement upon reaching a predetermined tightening torque of the cover, in which the coupling members are outwardly supported between both mutually freely rotatably mounted cover parts and are mounted in the inner circumference of one part of the cover, which coupling parts, which are provided with groove-like recesses, co-operate, in a radial direction, with coupling means engaging with a ratchet-like action in the other part of the cover and, when a predetermined tightening torque for the screw cover part is reached, automatically disengage therefrom.
Claim 5
Dependent Claim
56 words
A screw closure cover as recited in claim 1, in which a disc is used as coupling means having a central aperture and, over its circumference, radially outwardly directed recesses for groove-like engagement of diametrically opposing coupling members under the force of a compression spring on the circumference of the upper part of the screw closure.
Claim 6
Dependent Claim
62 words
A screw closure cover as recited in claim 1, in which a bridge member is used as coupling means which is inserted diametrically oppositely in the upper part of the screw closure and engages radially outwardly in grooves under the force of a compression spring co-operating with coupling members extending through apertures and engaging on the lower part of the screw cover.
Claim 7
Dependent Claim
33 words
A screw closure cover as recited in claim 1, in which the coupling means is prevented from twisting by engagement with projections extending from the outer circumference of an edge of the cover.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |