US4331547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collagen protein thermal insulating foam and method
Assignee: MCCAIN JAMES
•
Filing: 1980-11-21
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Granted: 1982-05-25
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Expires: 2000-11-21
Abstract
Abstract A thermal insulating foam is provided which is made from a collagen protein such as clear animal glue; and a method of making such a foam is also provided.
Inventors
- 👤 Everett J. Stotts
- 👤 Glenn S. Arbuthnot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:23
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C04; C04B; C04B38/00; C04B38/10; C04B38/106; C08J2389/00; C08J2389/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
A process for producing a collagen protein thermal insulating foam which comprises: dissolving in water in a proportion of 10:5 by weight a quantity of material including animal glue having a bloom strength of the order of 310 and having a gel temperature at least 10° F. above the ambient temperature at which the insulating foam is to be used, foaming the resulting solution, and permitting the foam to dry at a temperature corresponding to said ambient temperature.
Claim 2
Dependent Claim
78 words
A process for producing a collagen protein thermal insulating foam which comprises: dissolving in water in a proportion of 10:5 by weight a quantity of material including animal glue having a bloom strength of the order of 310 and having a gel temperature at least 10° F. above the ambient temperature at which the insulating foam is to be used, foaming the resulting solution, and permitting the foam to dry at a temperature corresponding to said ambient temperature.
Claim 3
Dependent Claim
35 words
The process defined in claim 1, in which said material comprises a mixture of said animal glue and gelatin having a bloom strength of the order of 150-160 in a proportion of 4:1 by weight.
Claim 4
Dependent Claim
20 words
The process defined in claim 1, and which includes adding a foaming agent and a foam stabilizer to the solution.
Claim 5
Dependent Claim
18 words
The process defined in claim 1, and which includes adding a fungicide and a bactericide to the solution.
Claim 6
Dependent Claim
29 words
The process defined in claim 1, in which the material comprises a mixture of carrageenan and said animal glue in a proportion of substantially 10 pounds to 70 grams.
Claim 7
Dependent Claim
44 words
A thermal insulating foam consisting of a material including animal glue having a bloom strength of the order of 310, and said material having a gel temperature at least 10° F. higher than the ambient temperature at which the foam is to be used.
Claim 8
Dependent Claim
44 words
A thermal insulating foam consisting of a material including animal glue having a bloom strength of the order of 310, and said material having a gel temperature at least 10° F. higher than the ambient temperature at which the foam is to be used.
Claim 9
Dependent Claim
37 words
The thermal insulating foam defined in claim 6, in which said material comprises a mixture of said animal glue and gelatin having a bloom strength of the order of 150-160 in a proportion of 4:1 by weight.
Claim 10
Dependent Claim
31 words
The thermal insulating foam defined in claim 6, in which said material comprises a mixture of said animal glue and carrageenan in a proportion of substantially 10 pounds to 70 grams.
Claim 11
Dependent Claim
16 words
The thermal insulating foam defined in claim 6, and which includes a fungicide and a bactericide.
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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |