Patent US4827581A successfully refreshed from Google Patents.
US4827581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal casket containing a plastisol liner and method of making the same
Assignee: AMERICAN INDUSTRIAL TECHNOLOGIES Inc
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Filing: 1988-01-19
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Granted: 1989-05-09
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Expires: 2008-01-19
Abstract
Abstract A metal casket having an impervious plastisol liner and method of producing the casket. A plastisol coating composition is prepared of a thermoplastic resin, a plasticizer for the resin, and a small amount of adhesion resin which is capable of bonding to the casket surface. The coating composition is applied to the inner surface of the casket and the casket is heated to a temperature above 225 DEG F. to provide a fused impervious coating. The coating is resistant to the organic acides contained within the casket and acts as a containment liner to seal and prevent corrosion of the casket.
Inventors
- 👤 Michael Davidian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:12
CPC Classifications
A; A61; A61G; A61G17/00; A61G17/007; A61G17/0076; A61G17/04; A61G17/042; C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
A method of fabricating a casket, comprising the steps of admixing 35% to 80% by weight of a thermoplastic resin, 18% to 70% by weight of a plasticizer, and 2% to 20% by weight of an adhesion resin to form a liquid composition, applying said liquid composition to the inner surface of said metal casket to form a coating thereon, and heating the casket to a temperature above 225° F. for a sufficient period of time to provide an adherent flexible impervious coating on said casket, said coating providing a containment liner to prevent corrosion of said metal casket by corrosive fluids contained within the casket in service.
Claim 2
Independent Claim
108 words
A method of fabricating a casket, comprising the steps of admixing 35% to 80% by weight of a thermoplastic resin, 18% to 70% by weight of a plasticizer, and 2% to 20% by weight of an adhesion resin to form a liquid composition, applying said liquid composition to the inner surface of said metal casket to form a coating thereon, and heating the casket to a temperature above 225° F. for a sufficient period of time to provide an adherent flexible impervious coating on said casket, said coating providing a containment liner to prevent corrosion of said metal casket by corrosive fluids contained within the casket in service.
Claim 3
Dependent Claim
21 words
The method of claim 1, wherein the step of heating the casket comprises heating to a temperature of about 300° F.
Claim 4
Dependent Claim
60 words
The method of claim 1, said thermoplastic resin is selected from the group consisting of polyvinyl chloride, polyvinyl chloride copolymers, polyvinyl chloride terpolymers, polyvinylidene chloride, polyvinylidene chloride copolymers, polyvinylidene chloride terpolymers, polyvinyl acetate and polyvinyl acetate copolymers, said adhesion resin being selected from the group consisting of one and two stage phenolic resins and epoxy resins with latent curing agents.
Claim 5
Dependent Claim
31 words
The method of claim 1, wherein the step of applying said liquid compositon to the inner surface of said metal casket is carried out without the addition of an evaporable carrier.
Claim 6
Dependent Claim
62 words
A casket construction, comprising a metal casket, and a flexible impervious adherent coating bonded to the inner surface of said casket, said coating composed of a homogeneous plasticized thermoplastic resin matrix and containing an adhesion resin bonded to said metal casket, said coating being an impervious containment liner to prevent contact of said metal casket by corrosive fluids contained within said casket.
Claim 7
Dependent Claim
62 words
A casket construction, comprising a metal casket, and a flexible impervious adherent coating bonded to the inner surface of said casket, said coating composed of a homogeneous plasticized thermoplastic resin matrix and containing an adhesion resin bonded to said metal casket, said coating being an impervious containment liner to prevent contact of said metal casket by corrosive fluids contained within said casket.
Claim 8
Dependent Claim
61 words
The construction of claim 5, wherein said thermoplastic resin is selected from the group consisting of polyvinyl chloride, polyvinyl chloride copolymers, polyvinyl chloride terpolymers, polyvinylidene chloride, polyvinylidene chloride copolymers, polyvinylidene chloride terpolymers, polyvinyl acetate and polyvinyl acetate copolymers, said adhesion resin being selected from the group consisting of one and two stage phenolic resins and epoxy resins with latent curing agents.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |