Patent US4028777A successfully refreshed from Google Patents.
US4028777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping ring and closure means
Assignee: Individual
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Filing: 1976-02-03
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Granted: 1977-06-14
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Expires: 1996-02-03
Abstract
Abstract A clamping ring and closure made of plastic material comprising a closure head integrally formed at one end of a clamping ring of U-shaped section which has a passage into which can be inserted the opposite end of the clamping ring which is in the form of a tongue. Interlocking teeth are provided on the side edges of the tongue and on the side walls of the passage. The side walls of the closure head are connected together by non-overlapping spacer webs and the sawteeth on the two side walls are disposed opposite one another at the points of attachment of the spacer webs. The locking teeth are dispoed on the tongue at an acute angle in relation to the longitudinal axis of the clamping ring and at their end surfaces they extend substantially perpendicularly to the longitudinal axis. Along one side edge of the tongue there is formed a reinforcing strip whose inner side is provided with sawteeth while the locking teeth formed on this side edge are widened over its outer side. The lower spacer webs lying at the exterior of the base of the clamping ring section have a portion which lies at the extremities of the limbs of the U section and offset in step form to bound a deeper portion of the passage corresponding to the reinforcing strip. A bent over portion of the spacer webs has a sawtooth facing the deeper portion of the passage.
Inventors
- 👤 Alfred Schobel
- 👤 Wilhelm Schobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:20
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/08; B; B65; B65D; B65D63/00; B65D63/10; B65D63/1018; B65D63/1027; B65D63/1063; B65D63/1081; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1498
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
289 words
A clamping ring and closure means made of plastics material comprising a closure head integrally formed at one end of a clamping ring of U-shaped section and which has a passage into which the opposite end of the clamping ring, which opposite end has the form of a tongue, can be inserted, and interlocking sawteeth or locking teeth provided on the side edges of the tongue and on the side walls of the passage, said closure head having side walls connected together by non-overlapping spacer webs which bound the passage on the upper side of the closure head and at the exterior of the base of the clamping ring, the sawteeth on the two side walls being in each case disposed opposite one another at the points of attachment of the spacer webs, the locking teeth disposed on the tongue, extending outwards at an acute angle in relation to the longitudinal axis of the clamping ring, and at their end surfaces extending approximately perpendicularly to said longitudinal axis, along one side edge of the tongue there being formed a reinforcing strip which projects in the direction of the open section side of the clamping ring and whose inner side is provided with sawteeth, while the locking teeth formed on this side edge are widened over its outer side, the lower spacer webs lying at the exterior of the base of the clamping ring section having in each case a portion which lies at the extremities of the limbs of the U-section and being offset in step form and which bounds a deeper portion of the passage corresponding to the reinforcing strip, and a bent-over portion of the spacer webs having a sawtooth facing the deeper portion of the passage.
Claim 2
Dependent Claim
289 words
A clamping ring and closure means made of plastics material comprising a closure head integrally formed at one end of a clamping ring of U-shaped section and which has a passage into which the opposite end of the clamping ring, which opposite end has the form of a tongue, can be inserted, and interlocking sawteeth or locking teeth provided on the side edges of the tongue and on the side walls of the passage, said closure head having side walls connected together by non-overlapping spacer webs which bound the passage on the upper side of the closure head and at the exterior of the base of the clamping ring, the sawteeth on the two side walls being in each case disposed opposite one another at the points of attachment of the spacer webs, the locking teeth disposed on the tongue, extending outwards at an acute angle in relation to the longitudinal axis of the clamping ring, and at their end surfaces extending approximately perpendicularly to said longitudinal axis, along one side edge of the tongue there being formed a reinforcing strip which projects in the direction of the open section side of the clamping ring and whose inner side is provided with sawteeth, while the locking teeth formed on this side edge are widened over its outer side, the lower spacer webs lying at the exterior of the base of the clamping ring section having in each case a portion which lies at the extremities of the limbs of the U-section and being offset in step form and which bounds a deeper portion of the passage corresponding to the reinforcing strip, and a bent-over portion of the spacer webs having a sawtooth facing the deeper portion of the passage.
Claim 3
Dependent Claim
67 words
A clamping ring and closure means according to claim 1, wherein the tongue and the closure head are widened on one side in relation to the clamping ring section, said reinforcing strip extending outside the extension line of the limb of this side on the widened portion of the tongue, and the bent-over portions of the lower spacer webs lying in the extension line of this limb.
Claim 4
Dependent Claim
46 words
A clamping ring and closure means according to claim 2, wherein at each end of the clamping ring there is formed a reinforcing flange which widens from the outer side of the limb towards the widened portion of the tongue and towards the closure head respectively.
Claim 5
Dependent Claim
51 words
A clamping ring and closure means according to claim 1, wherein the tongue increases in thickness from the edge provided with the reinforcing strip in the direction of the opposite side edge, the passage in the closure head increasing correspondingly in thickness on the side facing away from the deeper portion.
Claim 6
Dependent Claim
53 words
A clamping ring and closure means according to claim 3, wherein a bow, which is bent over at its end and which embraces that edge of the tongue which is pushed through the closure head and is provided with the reinforcing strip, projects perpendicularly from a reinforcing flange of the closure head end.
Claim 7
Dependent Claim
45 words
A clamping ring and closure means according to claim 5, wherein on the outer side of the limb of the clamping ring, opposite the bow, there is formed at least one sawtooth which engages in the sawteeth on the inner side of the reinforcing strip.
Claim 8
Dependent Claim
32 words
A clamping ring and closure means according to claim 6, wherein opposite the bent-over end of the bow an aperture of the same size as this end is provided in the flange.
Claim 9
Dependent Claim
38 words
A clamping ring and closure means according to claim 1, wherein on the outer side of the side walls of the closure head there are formed reinforcing beads which extend perpendicularly to the axis of the clamping ring.
Claim 10
Dependent Claim
26 words
A clamping ring and closure means according to claim 1, wherein the tongue is formed on a collar projecting beyond the cross-section of the clamping ring.
Claim 11
Dependent Claim
20 words
A clamping ring and closure means according to claim 9, wherein the widening reinforcing flange is attached to the collar.
Claim 12
Dependent Claim
42 words
A clamping ring and closure means according to claim 1, wherein the spacer webs on the upper side of the closure head are provided at their end adjoining one of the side walls with a weakened portion adapted to be torn open.
Claim 13
Dependent Claim
25 words
A clamping ring and closure means according to claim 1, wherein a gripping loop is formed on the tongue and also on the closure head.
Claim 14
Dependent Claim
37 words
A clamping ring and closure means according to claim 12, wherein the width of the gripping loop formed on the tongue is equal to the width of the tongue or of the passage in the closure head.
Claim 15
Dependent Claim
32 words
A clamping ring and closure means according to claim 12, wherein the gripping loop formed on the closure head is M-shaped and is formed at the height of the upper spacer webs.
Claim 16
Dependent Claim
115 words
A clamping ring and closure means made of plastics material comprising a closure head which is formed at one end of the clamping ring and which has a passage into which the other end of the clamp ring, which is in the form of a tongue, can be inserted, while interlocking sawteeth, locking teeth, or similar engaging elements are provided on the tongue and in the passage, according to claim 1, wherein the tongue is formed on a collar which projects beyond the cross-section of the clamping ring, and wherein on the outer side of the side walls of the closure head there are formed beads extending perpendicularly to the axis of the clamp ring.
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) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |