US4724028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing disc-shaped rubber articles, such as injection sites
Assignee: Baxter International Inc
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Filing: 1983-04-15
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Granted: 1988-02-09
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Expires: 2003-04-15
Abstract
Abstract An injection site may be made of a disc of puncture-resealable rubber in which the periphery carries a coating of thermoplastic material which is bonded to a sealingly compatible surface to retain the injection site in position. The injection site may be made by coating a rod of puncture-resealable rubber with a plastic material, followed by transversely slicing the coated rod into discs, which may then be sealed to the sealingly compatible surfaces.
Inventors
- 👤 Kenneth Zabielski
- 👤 Harold H. Bowerman, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:22
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/1406; B; B29; B29C; B29C48/00; B29C48/15; A61J1/05; A61J1/10; A61J1/1475; B29C2793/00; B29C2793/0027; B29C48/001; B29C48/0019; B29C48/0022; B29C48/03; B29C48/06; B29C48/09; B29C48/151; B29C48/16; B29C48/18; B29C48/21; B29L; B29L2031/00; B29L2031/26; B29L2031/56; B29L2031/753; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
83 words
The method of manufacturing an injection site, which comprises the steps of: coating a rod of puncture-resealable rubber with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by heat sealing the plastic coating material of said disc to a surface made of material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 2
Independent Claim
83 words
The method of manufacturing an injection site, which comprises the steps of: coating a rod of puncture-resealable rubber with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by heat sealing the plastic coating material of said disc to a surface made of material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 3
Independent Claim
83 words
The method of manufacturing an injection site, which comprises the steps of: coating a rod of puncture-resealable rubber with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by solvent sealing the plastic coating material of said disc to a surface made of material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 4
Independent Claim
83 words
The method of manufacturing an injection site, which comprises the steps of: coating a rod of puncture-resealable rubber with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by solvent sealing the plastic coating material of said disc to a surface made of material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 5
Dependent Claim
27 words
The method of claim 1 or 2 in which said bonding step comprises bonding said disc within the bore of a tube made of the compatible material.
Claim 6
Dependent Claim
42 words
The method of claim 1 or 2 in which said bonding step comprises bonding said disc to a flat surface made of the compatible material to form an annular bond between the flat surface and the plastic coating material of the disc.
Claim 7
Dependent Claim
13 words
The method of claim 4 in which said flat surfaces are plastic containers.
Claim 8
Dependent Claim
16 words
The method of claim 1 or 2 in which said disc is made of polyisoprene rubber.
Claim 9
Dependent Claim
25 words
The method of claim 1 or 2 in which said plastic coating material is selected from the group consisting of thermoplastic polyvinyl chloride and polyolefins.
Claim 10
Independent Claim
91 words
The method of manufacturing an injection site, which comprises the steps of: chlorinating the surface of a rod of punctureresealable hydrocarbon rubber; coating said rod with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by heat sealing the plastic coating material of said disc to a surface made of a material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 11
Independent Claim
91 words
The method of manufacturing an injection site, which comprises the steps of: chlorinating the surface of a rod of punctureresealable hydrocarbon rubber; coating said rod with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by heat sealing the plastic coating material of said disc to a surface made of a material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 12
Independent Claim
91 words
The method of manufacturing an injection site, which comprises the steps of: chlorinating the surface of a rod of punctureresealable hydrocarbon rubber; coating said rod with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by solvent sealing the plastic coating material of said disc to a surface made of a material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 13
Independent Claim
91 words
The method of manufacturing an injection site, which comprises the steps of: chlorinating the surface of a rod of punctureresealable hydrocarbon rubber; coating said rod with a plastic coating material; transversely slicing said coated rod into at least one disc having a coated peripheral surface and uncoated, spaced apart, end surfaces; and bonding by solvent sealing the plastic coating material of said disc to a surface made of a material which is sealingly compatible with the plastic coating material to affix said disc into a predetermined position relative to said surface.
Claim 14
Dependent Claim
20 words
The method of claim 8 or 9 in which said plastic coating material of the disc is a thermoplastic material.
Claim 15
Dependent Claim
21 words
The method of claim 10 in which said thermoplastic material is selected from the group consisting of polyvinyl chloride and polyolefins.
Claim 16
Dependent Claim
14 words
The method of claim 11 in which said puncture-resealable rubber is made of polyisoprene.
Claim 17
Independent Claim
121 words
A method of forming a discshaped rubber article and affixing the article to a surface comprising the steps of: forming a rod from a rubber material; coating the rod with a plastic coating material; transversely slicing the rod into at least one disc-shaped rubber article having opposed major faces and a periphery therebetween with only the periphery carrying the plastic coating material and the major faces being essentially free of the plastic coating material; and bonding by heat sealing the plastic coating material at the periphery of the disc-shaped rubber article to a surface made of a material which is sealingly compatible with the plastic coating material to affix the disc-shaped rubber article in a predetermined position relative to the surface.
Claim 18
Independent Claim
121 words
A method of forming a discshaped rubber article and affixing the article to a surface comprising the steps of: forming a rod from a rubber material; coating the rod with a plastic coating material; transversely slicing the rod into at least one disc-shaped rubber article having opposed major faces and a periphery therebetween with only the periphery carrying the plastic coating material and the major faces being essentially free of the plastic coating material; and bonding by heat sealing the plastic coating material at the periphery of the disc-shaped rubber article to a surface made of a material which is sealingly compatible with the plastic coating material to affix the disc-shaped rubber article in a predetermined position relative to the surface.
Claim 19
Independent Claim
121 words
A method of forming a disc-shaped rubber article and affixing the article to a surface comprising the steps of: forming a rod from a rubber material; coating the rod with a plastic coating material; transversely slicing the rod into at least one disc-shaped rubber article having opposed major faces and a periphery therebetween with only the periphery carrying the plastic coating material and the major faces being essentially free of the plastic coating material; and bonding by solvent sealing the plastic coating material at the periphery of the disc-shaped rubber article to a surface made of a material which is sealingly compatible with the plastic coating material to affix the disc-shaped rubber article in a predetermined position relative to the surface.
Claim 20
Independent Claim
121 words
A method of forming a disc-shaped rubber article and affixing the article to a surface comprising the steps of: forming a rod from a rubber material; coating the rod with a plastic coating material; transversely slicing the rod into at least one disc-shaped rubber article having opposed major faces and a periphery therebetween with only the periphery carrying the plastic coating material and the major faces being essentially free of the plastic coating material; and bonding by solvent sealing the plastic coating material at the periphery of the disc-shaped rubber article to a surface made of a material which is sealingly compatible with the plastic coating material to affix the disc-shaped rubber article in a predetermined position relative to the surface.
Claim 21
Dependent Claim
22 words
A method according to claim 13 or 14 wherein said rod forming step comprises forming the rod from a puncture-resealable rubber material.
Claim 22
Dependent Claim
40 words
A method according to claim 15 wherein said bonding step comprises bonding the disc-shaped article made from the puncture-resealable rubber material within the bore of a tube made of the compatible material to form an injection site within the tube.
Claim 23
Dependent Claim
60 words
A method according to claim 15 wherein said bonding step comprises bonding the disc-shaped article made from the puncture-resealable rubber material to flat surface made of the compatible material to form an annular bond between the flat surface and the plastic coating material carried at the periphery of the disc-shaped article, thereby forming an injection site on the flat surface.
Claim 24
Dependent Claim
21 words
A method according to claim 13 or 14 wherein said rod coating step comprises coating the rod with a thermoplastic material.
Claim 25
Dependent Claim
13 words
A method according to claim 18 wherein the thermoplastic material is polyvinyl chloride.
Claim 26
Dependent Claim
21 words
A method according to claim 13 or 14 wherein said rod coating step comprises coating the rod with a polyolefin material.
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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) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |