US4425172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifolds for strutted film
Assignee: Cryovac LLC
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Filing: 1981-11-09
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Granted: 1984-01-10
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Expires: 2001-11-09
Abstract
Abstract The invention deals with means for producing a manifold for a strutted film. In particular, the connection of a plastic tubular conduit to a strutted film to form a fluid tight communication between the strut passageway and the interior of the conduit is disclosed. The present method is especially advantageous where the struts of the strutted film, as a result of their method of manufacture, are not readily heat sealable. Where necessary, the method may also be applied to provide a manifold for a group of individual tubes.
Inventors
- 👤 Henry G. Schirmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:35
CPC Classifications
F; F16; F16L; F16L41/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033; Y10T156/1052; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
82 words
A process for joining a conduit having an internal passageway to a film having internal struts and providing fluid tight communication between said struts and said passageway comprising: applying an adhesive to said conduit; applying said strutted film to said adhesive; winding said strutted film about said conduit whereby said adhesive and said strutted film encircles said conduit; providing a coupling orifice in communication with said passageway and a strut; and applying a patch over an exterior opening of said coupling orifice.
Claim 2
Dependent Claim
82 words
A process for joining a conduit having an internal passageway to a film having internal struts and providing fluid tight communication between said struts and said passageway comprising: applying an adhesive to said conduit; applying said strutted film to said adhesive; winding said strutted film about said conduit whereby said adhesive and said strutted film encircles said conduit; providing a coupling orifice in communication with said passageway and a strut; and applying a patch over an exterior opening of said coupling orifice.
Claim 3
Dependent Claim
26 words
The process of claim 1, wherein said adhesive is a hot melt blend of an ethylene vinyl acetate polymer and a low molecular weight hydrocarbon tackifier.
Claim 4
Dependent Claim
10 words
The process of claim 1, wherein said adhesive is crosslinkable.
Claim 5
Dependent Claim
13 words
The process of claim 1, wherein said patch is a pressure sensitive tape.
Claim 6
Dependent Claim
15 words
The process of claim 1, wherein said patch is heat sealed to said strutted film.
Claim 7
Dependent Claim
92 words
A process for joining a conduit having an internal passageway to a film having internal struts and providing fluid tight communication between said struts and said passageway comprising: providing a heat sealable film between said conduit and said strutted film; providing a coupling orifice in communication with said passageway; folding said heat sealable film so as to sheath said strutted film and overlie an exterior opening of said coupling orifice; and heat sealing said heat sealable film whereby said strutted film is joined to said conduit and said exterior opening is closed.
Claim 8
Dependent Claim
92 words
A process for joining a conduit having an internal passageway to a film having internal struts and providing fluid tight communication between said struts and said passageway comprising: providing a heat sealable film between said conduit and said strutted film; providing a coupling orifice in communication with said passageway; folding said heat sealable film so as to sheath said strutted film and overlie an exterior opening of said coupling orifice; and heat sealing said heat sealable film whereby said strutted film is joined to said conduit and said exterior opening is closed.
Claim 9
Dependent Claim
26 words
The process of claim 6, wherein said coupling orifice is provided by passing a nail through said strutted film, said heat sealable film and said conduit.
Claim 10
Dependent Claim
12 words
The process of claim 6, wherein said heat sealable film is polyethylene.
Claim 11
Dependent Claim
12 words
The process of claim 7, wherein said nail comprises a grooved surface.
Claim 12
Dependent Claim
15 words
The process of claims 1 or 6, wherein individual struts are joined to said conduit.
References Cited (Backward Citations)
US3907625A
Cited
US3782407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |