Patent US4154856A successfully refreshed from Google Patents.
US4154856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stretching a coagulable extrudate
Assignee: BP Corp North America Inc
•
Filing: 1978-03-20
•
Granted: 1979-05-15
•
Expires: 1998-03-20
Abstract
Abstract Stretched fibers or fibrils from single-cell dopes are prepared by extruding the dope into a moving coagulating bath wherein the fluid motion of the bath causes the extrudate to gradually stretch. The resultant stretched fibers are useful as textured food products.
Inventors
- 👤 Cavit Akin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:12
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/22; A23J3/28; Y; Y10; Y10S; Y10S426/00; Y10S426/802
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
42 words
A method for gradually stretching a coagulable extrudate comprising injections the coagulable extrudate into a vortexing coagulating bath, wherein the extrudate is gradually stretched along the spiral path of the vortex, and collecting the stretched extrudate near the apex of the vortex.
Claim 2
Independent Claim
42 words
A method for gradually stretching a coagulable extrudate comprising injections the coagulable extrudate into a vortexing coagulating bath, wherein the extrudate is gradually stretched along the spiral path of the vortex, and collecting the stretched extrudate near the apex of the vortex.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein the coagulable extrudate is an extruded dope comprising single-cell protein organisms.
Claim 4
Dependent Claim
12 words
The process of claim 2 wherein the single-cell protein organisms are yeast.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein the vortex is created by agitation within the coagulating bath container.
Claim 6
Dependent Claim
19 words
The process of claim 1 wherein the vortex is created by a drain hole in the coagulating bath container.
Claim 7
Independent Claim
53 words
A method for gradually stretching a coagulable extrudate comprising injecting a coagulable extrudate into a coagulating bath contained within an annular space between a stationary cylinder and a concentric rotating conical segment wherein the extrudate is subjected to increasing velocity and gradually stretching as it spirals toward the apex of the conical segment.
Claim 8
Independent Claim
53 words
A method for gradually stretching a coagulable extrudate comprising injecting a coagulable extrudate into a coagulating bath contained within an annular space between a stationary cylinder and a concentric rotating conical segment wherein the extrudate is subjected to increasing velocity and gradually stretching as it spirals toward the apex of the conical segment.
References Cited (Backward Citations)
US3084384A
Cited
US3049755A
Cited
US3240852A
Cited
US3452129A
Cited
US3794731A
Cited
US3887692A
Cited
US3889010A
Cited
US3987213A
Cited
NL7507403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |