Patent US3779413A successfully refreshed from Google Patents.
US3779413A
Expired / Lapsed
US
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Primary nurser assembly
Assignee: West Pharmaceutical Services Inc
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Filing: 1971-06-18
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Granted: 1973-12-18
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Expires: 1991-06-18
Abstract
Abstract A primary nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of the contents of the container, a nipple having a base portion overlying the dam, a pusher element engageable over the feeding tip of the nipple operable upon displacement toward said dam to partially detach said portion, and an outer cover assembly hermetically sealing said elements.
Inventors
- 👤 F Pickerell
- 👤 D Brignola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:37
CPC Classifications
A; A61; A61J; A61J11/00; A61J11/0075; A61J11/008; A61J11/04; A61J11/045; A61J9/00; A61J9/008
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
91 words
A primary nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of the contents of the container, a nipple mounted in overlying relation of the dam, a pusher element disposed over the feeding tip of the nipple operable upon displacement toward said dam to effect partial detachment of said portion to permit withdrawal of the contents of the container, and an outer cover assembly hermetically sealing said elements.
Claim 2
Dependent Claim
91 words
A primary nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of the contents of the container, a nipple mounted in overlying relation of the dam, a pusher element disposed over the feeding tip of the nipple operable upon displacement toward said dam to effect partial detachment of said portion to permit withdrawal of the contents of the container, and an outer cover assembly hermetically sealing said elements.
Claim 3
Dependent Claim
33 words
A primary nurser assembly as claimed in claim 1 wherein the pusher element snugly engages the nipple and is provided with an opening providing air access means to the interior of the nipple.
Claim 4
Dependent Claim
34 words
A primary nurser assembly as claimed in claim 1 wherein said dam is of an offset configuration having a generally cylindrical side wall and including a retainer for the nipple press-fitted into the dam.
Claim 5
Dependent Claim
33 words
A primary nurser assembly as claimed in claim 1 including a first seal between the dam and container adjacent the opening therein and a second seal between said dam and outer cover assembly.
Claim 6
Dependent Claim
42 words
A primary nurser assembly as claimed in claim 1 wherein said dam includes a bottom wall having a score line in the shape of a circular line therein, the ends of the score line being spaced apart to define a hinge connection.
Claim 7
Dependent Claim
32 words
A primary nurser assembly as claimed in claim 5 wherein the pusher element is of an inverted cup-shaped form wherein the lower edge of the cup engages interiorly of said score line.
Claim 8
Dependent Claim
41 words
A primary nurser assembly as claimed in claim 3 wherein the side wall of the dam is provided with a circumferentially extending bead engagable in a circumferentially extending groove in the retainer to mount the retainer and dam against relative displacement.
Claim 9
Dependent Claim
33 words
A primary nurser assembly as claimed in claim 3 wherein the retainer is provided with a circumferentially extending bead which seats in a circumferentially extending groove in the side wall of the dam.
Claim 10
Dependent Claim
23 words
A primary nurser assembly as claimed in claim 1 wherein sAid outer cover assembly comprises a dome member and a detachable tear band.
Claim 11
Dependent Claim
23 words
A primary nurser assembly as claimed in claim 9 wherein the dome is made of a transparent material to facilitate examination for leakage.
Claim 12
Dependent Claim
29 words
A primary nurser assembly as claimed in claim 1 wherein said nipple has a radially extending base flange and including a retaining ring for mounting the nipple in place.
Claim 13
Dependent Claim
54 words
A primary nurser assembly as claimed in claim 11 wherein said outer cover member comprises a tear band portion and a cap portion connected by a scored strip and wherein the inner wall at the juncture of the tear band and cap has a recess within which a projection on the retaining ring seats.
Claim 14
Dependent Claim
25 words
A primary nurser assembly as claimed in claim 12 wherein the pusher element is formed integrally with the cap portion of the outer cover assembly.
Claim 15
Dependent Claim
77 words
A primary nurser assembly as claimed in claim 1 wherein the outer cover assembly includes a dome-like member and a tear band having an inwardly directed upper flange overlying a portion of the dome-like member and including a weakened section, said pusher element being formed integrally with the dome-like member, actuation of said dome-like member downwardly operable to simultaneously detach said portion of the dam member and effect separation of said tear band along said weakened section.
Claim 16
Dependent Claim
61 words
A primary nurser assembly as claimed in claim 1 including a retainer having locking means for mounting the base of the nipple and an inner ring member disposed between said outer cover assembly and said retainer and including a circumferentially extending angularly upwardly directed annular portion engagable with the base of the nipple to securely mount a nipple to the retainer.
Claim 17
Dependent Claim
51 words
A primary nurser assembly as claimed in claim 1 wherein said outer cover assembly is of unitary construction secured to said container including a cap portion and a tear band connected thereto by score means whereby the cap portion may be detached from the tear band by fracturing the score means.
Claim 18
Dependent Claim
27 words
A primary nurser assembly as claimed in claim 1 wherein the top of the outer cover assembly overlying said pusher element is provided with a strengthening rib.
Claim 19
Dependent Claim
103 words
A primary nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of the contents of the container, a nipple mounted in overlying relation to the dam, a pusher element disposed over the feeding tip of the nipple operable upon displacement toward said dam to effect partial detachment of said portion to permit withdrawal of the contents of the container, and an outer cover assembly enclosing and sealing at least said detachable portion of said dam, said nipple and pusher element.
Claim 20
Dependent Claim
103 words
A primary nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of the contents of the container, a nipple mounted in overlying relation to the dam, a pusher element disposed over the feeding tip of the nipple operable upon displacement toward said dam to effect partial detachment of said portion to permit withdrawal of the contents of the container, and an outer cover assembly enclosing and sealing at least said detachable portion of said dam, said nipple and pusher element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |