US3704483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making shirred tubing
Assignee: Viskase Corp
•
Filing: 1970-03-05
•
Granted: 1972-12-05
•
Expires: 1990-03-05
Abstract
Abstract A method and apparatus are provided for uniformly compressing and compacting a length of flexible, tubular sausage casing into a coherent, shirred casing stick which, from end to end, exhibits circumferential uniformity, is substantially straight and has an uninterrupted, uniform bore.
Inventors
- 👤 Algimantas P Urbutis
- 👤 Bernard H Schenk
- 👤 Joseph J Risany
- 👤 Walter V Marbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:50
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/02
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
45 words
In a method of forming a shirred tubing into a coherent selfsustaining shirred stick the step which comprises passing a shirred tubing advancing from a shirring passage through an annular restraining passage about a mandrel approximately equal to the external diameter of the shirred casing.
Claim 2
Dependent Claim
45 words
In a method of forming a shirred tubing into a coherent selfsustaining shirred stick the step which comprises passing a shirred tubing advancing from a shirring passage through an annular restraining passage about a mandrel approximately equal to the external diameter of the shirred casing.
Claim 3
Dependent Claim
43 words
In a method of forming shirred tubing into a coherent self-sustaining stick the steps which comprise advancing the shirred tubing from the shirring passage and then coiling and compacting the shirred tubing about a mandrel to uniformly spiral the tubing in its length.
Claim 4
Dependent Claim
43 words
In a method of forming shirred tubing into a coherent self-sustaining stick the steps which comprise advancing the shirred tubing from the shirring passage and then coiling and compacting the shirred tubing about a mandrel to uniformly spiral the tubing in its length.
Claim 5
Dependent Claim
44 words
In a method of forming shirred tubing into a coherent self-sustaining stick the steps which comprise advancing the shirred tubing from the shirring passage and then concurrently coiling and compacting the shirred tubing about a mandrel to uniformly spiral the tubing in its length.
Claim 6
Dependent Claim
44 words
In a method of forming shirred tubing into a coherent self-sustaining stick the steps which comprise advancing the shirred tubing from the shirring passage and then concurrently coiling and compacting the shirred tubing about a mandrel to uniformly spiral the tubing in its length.
Claim 7
Dependent Claim
54 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises helically displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 8
Dependent Claim
54 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises helically displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 9
Dependent Claim
68 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises subjecting the shirred pleats to a restraining force on the pleats outer surface to helically displace the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 10
Dependent Claim
68 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises subjecting the shirred pleats to a restraining force on the pleats outer surface to helically displace the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 11
Dependent Claim
68 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises subjecting the shirred pleats to a rotating force on the pleats bore surface to helically displace the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 12
Dependent Claim
68 words
In a method of forming shirred tubing into a coherent self-sustaining stick having a bore and a substantially cylindrical outer surface wherein the tubing is shirred in a predetermined pleat pattern, the step which comprises subjecting the shirred pleats to a rotating force on the pleats bore surface to helically displace the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 13
Independent Claim
62 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred, advancing the shirred tubing from the shirring passage and then uniformly coiling and compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length.
Claim 14
Independent Claim
62 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred, advancing the shirred tubing from the shirring passage and then uniformly coiling and compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length.
Claim 15
Independent Claim
63 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred, advancing the shirred tubing from the shirring passage and then uniformly coiling and concurrently compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length.
Claim 16
Independent Claim
63 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred, advancing the shirred tubing from the shirring passage and then uniformly coiling and concurrently compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length.
Claim 17
Independent Claim
77 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern and uniformly coiling and compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length and helically displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 18
Independent Claim
77 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern and uniformly coiling and compacting the shirred tubing about the mandrel to uniformly spiral the tubing in its length and helically displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 19
Independent Claim
75 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern, subjecting the shirred pleats to a restraining force imposed on the pleat''s outer surface to compact and helically displace said pleats in a helical pattern greater than and superimposed on the ordered repeated shirred pattern of pleats.
Claim 20
Independent Claim
75 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern, subjecting the shirred pleats to a restraining force imposed on the pleat''s outer surface to compact and helically displace said pleats in a helical pattern greater than and superimposed on the ordered repeated shirred pattern of pleats.
Claim 21
Independent Claim
87 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern, subjecting the shirred pleats to a restraining force imposed on the pleat''s outer surface to compact and helically displace said pleats in a helical pattern greater than and superimposed on the ordered repeated shirred pattern of pleats, the outer periphery of said pleats being substantially transverse to the bore.
Claim 22
Independent Claim
87 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises moving a predetermined length of tubing concentrically over a mandrel to and through a shirring passage where the tubing is shirred into a predetermined pattern, subjecting the shirred pleats to a restraining force imposed on the pleat''s outer surface to compact and helically displace said pleats in a helical pattern greater than and superimposed on the ordered repeated shirred pattern of pleats, the outer periphery of said pleats being substantially transverse to the bore.
Claim 23
Independent Claim
52 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a shirred tubing of predetermined length advancing from a shirring passage through a former and holdback passage cooperatively positioned about a mandrel to compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length.
Claim 24
Independent Claim
52 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a shirred tubing of predetermined length advancing from a shirring passage through a former and holdback passage cooperatively positioned about a mandrel to compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length.
Claim 25
Independent Claim
53 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a shirred tubing of predetermined length advancing from a shirring passage through a former and holdback passage cooperatively positioned about a mandrel to concurrently compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length.
Claim 26
Independent Claim
53 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a shirred tubing of predetermined length advancing from a shirring passage through a former and holdback passage cooperatively positioned about a mandrel to concurrently compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length.
Claim 27
Independent Claim
68 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a predetermined length of tubing shirred into a predetermined pleat pattern through a former and holdback passage about a mandrel to compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
Claim 28
Independent Claim
68 words
The method of shirring flexible tubing into a coherent self-sustaining stick which comprises feeding a predetermined length of tubing shirred into a predetermined pleat pattern through a former and holdback passage about a mandrel to compact the shirred tubing about the mandrel and uniformly spiral the tubing in its length displacing the shirred pleats in a helical pattern greater than and superimposed on the shirred tubing pleat pattern.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |