US4008912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-tightening knot
Assignee: Individual
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Filing: 1972-12-15
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Granted: 1977-02-22
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Expires: 1992-12-15
Abstract
Abstract A self-tightening knot for tying tubular casings such as sausage casings, cheese casings, or the like, comprises a doubled end portion of a flexible strand having a pair of substantially parallel strand segments and an end loop, a pair of overlapping bights in said end portion, and at least a pair of turns in said end portion between said bights. The end loop passes through said turns and holds the overlapping bights under at least one of said turns when the end loop is drawn taut and the knot is secured.
Inventors
- 👤 Ilijus Kotov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:29
CPC Classifications
B; B65; B65D; B65D63/00; B65D63/10; B65D63/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
188 words
A self-tightening knot formed from a single strand of a material for tying a tubular casing which comprises a flexible strand provided with a doubled end portion comprising a standing part and a running part and having a pair of substantially parallel strand segments and an end loop; at least a pair of turns in the running part of said doubled end portion and about said casing; a first bight in the standing part of said doubled end portion and adjacent to said turns; and a second bight in the running part of said doubled end portion between said turns and said end loop; said second bight formed by passing said running part from the turn toward the end of said casing over all other turns toward the inner portion of said casing and beneath all turns toward the end of said casing providing said end loop to the end of the casing, said first bight formed by passing said standing part from the turn toward the inner portion of said casing under the running part forming said second bight and toward the inner portion of said casing.;
Claim 2
Dependent Claim
188 words
A self-tightening knot formed from a single strand of a material for tying a tubular casing which comprises a flexible strand provided with a doubled end portion comprising a standing part and a running part and having a pair of substantially parallel strand segments and an end loop; at least a pair of turns in the running part of said doubled end portion and about said casing; a first bight in the standing part of said doubled end portion and adjacent to said turns; and a second bight in the running part of said doubled end portion between said turns and said end loop; said second bight formed by passing said running part from the turn toward the end of said casing over all other turns toward the inner portion of said casing and beneath all turns toward the end of said casing providing said end loop to the end of the casing, said first bight formed by passing said standing part from the turn toward the inner portion of said casing under the running part forming said second bight and toward the inner portion of said casing.;
Claim 3
Dependent Claim
24 words
The self-tightening knot of claim 1 wherein two turns are provided in the running part of said doubled end portion and about said casing.
Claim 4
Independent Claim
180 words
A method of producing a self-tightening knot for tying a tubular casing which comprises the steps of providing a single flexible strand; doubling an end portion of said strand so as to form a standing part and a running part and to provide a pair of substantially parallel strand segments and an end loop; forming a first bight in the standing part of the doubled end portion; forming at least a pair of turns in said running part extending from said first bight toward the end and about said casing; laying said end loop across the formed turns toward the inner portion of said casing; forming a second bight in the running part of the doubled end portion between said turns and said end loop; passing said end loop through the formed turns toward the end of said casing so that said second bight overlies said first bight; and drawing said end loop taut so as to pull said first bight and said second bight under at least one of said turns and so as to secure the produced knot.
Claim 5
Independent Claim
180 words
A method of producing a self-tightening knot for tying a tubular casing which comprises the steps of providing a single flexible strand; doubling an end portion of said strand so as to form a standing part and a running part and to provide a pair of substantially parallel strand segments and an end loop; forming a first bight in the standing part of the doubled end portion; forming at least a pair of turns in said running part extending from said first bight toward the end and about said casing; laying said end loop across the formed turns toward the inner portion of said casing; forming a second bight in the running part of the doubled end portion between said turns and said end loop; passing said end loop through the formed turns toward the end of said casing so that said second bight overlies said first bight; and drawing said end loop taut so as to pull said first bight and said second bight under at least one of said turns and so as to secure the produced knot.
Claim 6
Dependent Claim
25 words
The method in accordance with claim 3 wherein two turns are formed in the running part of the doubled end portion and about said casing.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |