US4196223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing sausage casings from pig skins
Assignee: JPMorgan Chase Bank NA
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Filing: 1978-01-23
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Granted: 1980-04-01
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Expires: 1998-01-23
Abstract
Abstract After curing pig skins with hydrochloric acid, they are ground and then homogenized to a gel. The gel is extruded into a coagulating and tanning bath containing glutaraldehyde in a saturated sodium chloride solution to obtain a coagulated and tanned casing which is thereafter passed into a plasticizing bath containing glycerol and an oxidizing agent.
Inventors
- 👤 Joseph L. Shank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:49
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
A method of forming sausage casings from pig skins comprising the steps of: (a) curing pig skins with dilute hydrochloric acid; (b) grinding said cured skins; (c) homogenizing said ground skins to a gel; (d) extruding said gel into a coagulating and tanning bath comprising from about 0.5 to about 5.0 weight percent of glutaraldehyde in a saturated sodium chloride solution to obtain a coagulated and tanned casing; and then (e) passing said casing into a plasticizing bath containing about 5% glycerol and about 0.5 to 3% of an oxidizing agent.
Claim 2
Independent Claim
91 words
A method of forming sausage casings from pig skins comprising the steps of: (a) curing pig skins with dilute hydrochloric acid; (b) grinding said cured skins; (c) homogenizing said ground skins to a gel; (d) extruding said gel into a coagulating and tanning bath comprising from about 0.5 to about 5.0 weight percent of glutaraldehyde in a saturated sodium chloride solution to obtain a coagulated and tanned casing; and then (e) passing said casing into a plasticizing bath containing about 5% glycerol and about 0.5 to 3% of an oxidizing agent.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said extruded gel is treated in said coagulating and tanning bath for a period of from about 4 to about 10 minutes.
Claim 4
Dependent Claim
26 words
The method of claim 2, additionally comprising the step of washing the coagulated, tanned casing with water prior to passing said casing into the plasticizing bath.
Claim 5
Dependent Claim
22 words
The method of claim 3 wherein said casing is treated in the plasticizing bath for about thirty seconds to about one minute.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein said oxidizing agent is hydrogen peroxide.
References Cited (Backward Citations)
US3073902A
Cited
US3123481A
Cited
US3151990A
Cited
US3494773A
Cited
US3408918A
Cited
US3408916A
Cited
US3408917A
Cited
US3782977A
Cited
US3833746A
Cited
US3821439A
Cited
US3930036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |