US3844456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for discharge nozzles on cans
Assignee: Individual
•
Filing: 1971-12-20
•
Granted: 1974-10-29
•
Expires: 1991-12-20
Abstract
Abstract A claw fastener for thermoplastic nozzles on cans has a pair of curved fingers which press tightly under a pair of cammed surfaces on either side of the nozzle to hold a cover which is hinged to the claw fastener down tightly over the nozzle. A sleeve of harder material is connected to the wall of the discharge nozzle. The upper face at the nozzle is higher than the upper face on the sleeve and forms the opposite face for the cover. The lower face on the sleeve is separated from the surface of the can.
Inventors
- 👤 W Schiemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/38; B65D25/40; B65D25/42; B65D45/00; B65D45/02; B65D45/04; B65D45/06
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
193 words
A blow-molded thermoplastic can having a blow-molded nozzle integral therewith comprising an outer wall on said nozzle, insert ring means secured within said nozzle in the vicinity of its outer end for hindering the inward movement of said nozzle, cover means for closing off said nozzle, sleeve means of a substantially harder material than said nozzle and said can, connecting means provided between the outer wall of the nozzle and the inner wall of said sleeve means for rigidly connecting the sleeve means about said nozzle for hindering the outward movement of said nozzle, means for hindering rotation of said sleeve means on said nozzle in either direction, the lower face of said sleeve means being spaced from the outer face of said can out of which said nozzle wall emerges, downwardly projecting and outwardly tapering skirt means on said sleeve means spaced from contact with the outer face of said can out of which said nozzle wall emerges, O-shaped ring means between said skirt means and the surface of said can compressible in the direction of the geometric longitudinal axis of the nozzle, said cover means being pivoted from said sleeve means.
Claim 2
Dependent Claim
193 words
A blow-molded thermoplastic can having a blow-molded nozzle integral therewith comprising an outer wall on said nozzle, insert ring means secured within said nozzle in the vicinity of its outer end for hindering the inward movement of said nozzle, cover means for closing off said nozzle, sleeve means of a substantially harder material than said nozzle and said can, connecting means provided between the outer wall of the nozzle and the inner wall of said sleeve means for rigidly connecting the sleeve means about said nozzle for hindering the outward movement of said nozzle, means for hindering rotation of said sleeve means on said nozzle in either direction, the lower face of said sleeve means being spaced from the outer face of said can out of which said nozzle wall emerges, downwardly projecting and outwardly tapering skirt means on said sleeve means spaced from contact with the outer face of said can out of which said nozzle wall emerges, O-shaped ring means between said skirt means and the surface of said can compressible in the direction of the geometric longitudinal axis of the nozzle, said cover means being pivoted from said sleeve means.
Claim 3
Dependent Claim
174 words
A device as claimed in claim 1 comprising carrier means extending towards a handle means of the can, the free ends of said carrier means being connected to a transverse bar, hinged eye means which is penetrated by said transverse bar, extended in the form of a tongue, said cover means being connected to said tongue, bearing means which extend transversely to said cover means, a transverse axle penetrating said bearing means, claw means having two eyes pivotably mounted relative to said cover means at both ends of said transverse axle on the side of said cover means and which are connected by central portions via a U-shaped bent portion which, when in a closed position, is located on a level with the handle means, bent finger means extending from each central portion and leaving a free space between itself, said central portion and said eyes, cam means on either side of tthe nozzle, at the lower face of which said finger means is brought to bear under pressure when in a closed positiOn.
Claim 4
Dependent Claim
35 words
A device as claimed in claim 1 comprising an insert ring having an air evacuation tube rigidly connected at one end thereof and means for holding said insert ring non-rotatably and non-slidably in said nozzle.
Claim 5
Dependent Claim
29 words
A device as claimed in claim 1 in which the cover means has inner threads and said sleeve means has outer threads for closing engagement with said inner threads.
Claim 6
Dependent Claim
38 words
A device as claimed in claim 1, comprising connecting means providing a positive connection comprising indentations and projections on the discharge nozzle and said sleeve means which extend substantially concentrically with the geometric longitudinal axis of the nozzle.
Claim 7
Dependent Claim
15 words
A device as claimed in claim 5, in which the indentations and projections form threads.
Claim 8
Dependent Claim
23 words
A device as claimed in claim 1, in which said sleeve means is a pressure diecasting which consists of a substantially lightweight metal.
Claim 9
Dependent Claim
18 words
A device as claimed in claim 2, in which said carrier means are integral with said sleeve means.
Claim 10
Dependent Claim
70 words
A device as claimed in claim 1, in which said means of preventing rotation comprises a groove and a resilient member on said skirt and on the face of the can which are arranged substantially radially to the geometric longitudinal axis of the nozzle on said skirt and on the face of the can, said resilient member being snapfastened in said groove when said sleeve means occupies its operative position.
Claim 11
Dependent Claim
20 words
A device as claimed in claim 9, in which said means of preventing rotation is provided below said carrier means.
Claim 12
Dependent Claim
68 words
A device as claimed in claim 1, in which on the side directed away from a handle means the nozzle leads into a protuberance in the wall of the can which is of such form and thickness that, if a force causes unallowable deformation of the wall or nozzle, the protuberance snaps inwards into the can thereby altering the position of the geometric longitudinal axis of the nozzle.
Claim 13
Dependent Claim
49 words
A device as claimed in claim 11, in which in plan view the protuberance is shaped approximately like a quarter moon, the tips of the moon originating approximately below said cam means and the bulge of the moon extending almost as far as the front wall of the can.
Claim 14
Dependent Claim
34 words
A device as claimed in claim 11, in which in the case of 20 litre cans the height of the protuberance opposite the uncurved face of the can is approximately 1.5 - 2 cm.
Claim 15
Dependent Claim
18 words
A device as claimed in claim 11, in which the protuberance leads directly into the uncurved surrounding face.
Claim 16
Dependent Claim
32 words
A device as claimed in claim 2, in which pressure absorbing means which is substantially harder than said cam means is provided at least on the lower face of said cam means.
Claim 17
Dependent Claim
17 words
A device as claimed in claim 15, in which said pressure absorbing means comprises a metal strip.
Claim 18
Dependent Claim
17 words
A device as claimed in claim 16, in which the metal strip is made of spring steel.
Claim 19
Dependent Claim
46 words
A device as claimed in claim 16, in which the metal strip is bent so as to fit closely around a transverse web portion of said cam means and its two ends are securely held on the upper side of said transverse web by fastening means.
Claim 20
Dependent Claim
30 words
A device as claimed in claim 16, in which the ends of said metal strip overlap and are provided with slots and in that a rivet passes through both slots.
Claim 21
Dependent Claim
34 words
A device as claimed in claim 16, in which the metal strip is bent at an angle so as to correspond to the angular cross-section of a transverse web portion of said cam means.
Claim 22
Dependent Claim
28 words
A device as claimed in claim 15, in which the lower face of said cam means is curved so as to resemble the shape of said finger means.
Claim 23
Dependent Claim
55 words
A device as claimed in claim 3, in which on the inner side of the nozzle concentric with its geometric longitudinal axis there is provided at least one groove which is associated with a projection on the outer side of said insert ring, and in that said insert ring is snap-fastened into the discharge nozzle.
Claim 24
Dependent Claim
22 words
A device as claimed in claim 3 comprising a flange on said insert ring supported on the upper face of the nozzLe.
References Cited (Backward Citations)
US193212A
Cited
US1627065A
Cited
US1757184A
Cited
US1976426A
Cited
US2260666A
Cited
US2365695A
Cited
US2923293A
Cited
GB845927A
Cited
GB1167654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |