US3788561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for employing seals to closures for containers
Assignee: Nordson Corp
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Filing: 1972-08-10
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Granted: 1974-01-29
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Expires: 1992-08-10
Abstract
Abstract Apparatus for emplacing a seal on a closure for a container in which a seal forming material is deposited on the surface of the closure initially in a pattern of discrete droplets and fused to form a homogeneous layer.
Inventors
- 👤 B Vilagi
- 👤 W Stumphauzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:05
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B05; B05C; B05C5/00; B05C5/001; B05C5/02; B05C5/0208; B05C5/0212; B05C5/0291; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/46; B29C31/00; B29C31/04; B29C31/042; B29C43/32; B29C43/34; B29C70/00; B29C70/68; B29C70/78; B29C70/80; B29C2043/3433; B29C2043/3488; B29C43/58; B29C2043/5875; Y; Y10; Y10S; Y10S264/00; Y10S264/67
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A nozzle for applying plastic sealing material to the surface of a closure for a container, said gun having a valve therein capable of opening and closing within the time range of from 4 to 50 milliseconds, said nozzle being configurated to provide a vertical passageway in communication with the downstream side of said valve, said nozzle further configurated to provide a plurality of horizontal passageways having inner ends thereof in communication with said vertical passageway and radiating outwardly therefrom, said nozzle further configurated to provide an endless groove disposed in a horizontal plane and connecting the outer ends of all of the horizontal passageways, and said nozzle further configurated to provide a plurality of discharge orifices that are disposed vertically with their axes parallel to one another and having their upper ends in communication with said endless groove and their lower ends all residing in the same plane.
Claim 2
Dependent Claim
149 words
A nozzle for applying plastic sealing material to the surface of a closure for a container, said gun having a valve therein capable of opening and closing within the time range of from 4 to 50 milliseconds, said nozzle being configurated to provide a vertical passageway in communication with the downstream side of said valve, said nozzle further configurated to provide a plurality of horizontal passageways having inner ends thereof in communication with said vertical passageway and radiating outwardly therefrom, said nozzle further configurated to provide an endless groove disposed in a horizontal plane and connecting the outer ends of all of the horizontal passageways, and said nozzle further configurated to provide a plurality of discharge orifices that are disposed vertically with their axes parallel to one another and having their upper ends in communication with said endless groove and their lower ends all residing in the same plane.
Claim 3
Dependent Claim
37 words
A nozzle as set forth in claim 1 in which said orifices are all of the same size and approximately in the range of 0.006 to 0.020 inches in diameter by approximately 0.03 to 0.15 inches long.
Claim 4
Dependent Claim
44 words
A nozzle as set forth in claim 1 in which the orifices are all of the same size and in which the cross sectional area of said vertical passageway is only slightly greater than the combined cross sectional areas of all of the orifices.
Claim 5
Dependent Claim
31 words
A nozzle as set forth in claim 1 in which the cross sectional area of said vertical passageway is approximately equal to the combined cross sectional areas of said horizontal passageways.
Claim 6
Dependent Claim
23 words
A nozzle as set forth in claim 1 in which said horizontal passageways are cruciform in shape, and said endless groove is annular.
Claim 7
Dependent Claim
22 words
A nozzle as set forth in claim 1 in which said orifices are disposed in a circular pattern in equally spaced relation.
Claim 8
Dependent Claim
118 words
An extrusion nozzle Assembly comprising: an airless spray gun having a hollow cylindrical end portion; valve means disposed in said hollow cylindrical portion; an adapter attached to said end portion; a control passageway in said adapter cooperating with said valve means; radial grooves formed in the end face of said adapter and connected to said central passageway; a nozzle attached to said adapter; a groove formed in the inner face of said nozzle for communication with said radial grooves in said adapter; orifices formed in said nozzle parallel to and uniformly spaced apart from each other; and said orifices connected to said groove formed in the inner face of said nozzle and the outer face of said nozzle.
Claim 9
Dependent Claim
118 words
An extrusion nozzle Assembly comprising: an airless spray gun having a hollow cylindrical end portion; valve means disposed in said hollow cylindrical portion; an adapter attached to said end portion; a control passageway in said adapter cooperating with said valve means; radial grooves formed in the end face of said adapter and connected to said central passageway; a nozzle attached to said adapter; a groove formed in the inner face of said nozzle for communication with said radial grooves in said adapter; orifices formed in said nozzle parallel to and uniformly spaced apart from each other; and said orifices connected to said groove formed in the inner face of said nozzle and the outer face of said nozzle.
Claim 10
Dependent Claim
19 words
The apparatus of claim 7 in which said radial grooves in said adapter are arranged in a cruciform pattern.
Claim 11
Dependent Claim
18 words
The apparatus of claim 7 in which the orifices in said nozzle are arranged in a circular pattern.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |