Patent US4876788A successfully refreshed from Google Patents.
US4876788A
Expired / Lapsed
US
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Method of making a leakproof connection about the outlet tube of a liquid containment bag
Assignee: ER Squibb and Sons LLC
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Filing: 1988-07-06
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Granted: 1989-10-31
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Expires: 2008-07-06
Abstract
Abstract A synthetic plastic bag for containing liquids, e.g., urine, has a plastic outlet tube. It is manufactured by a first step of seam welding the tube between two superposed bag walls. In a subsequent step, an encircling sleeve is slid over the tube to a position where it contains within it the portions of the bag walls on either side of the tube. Thirdly, this sleeve is compressed onto the tube by a crimping operation conducted with the crimping force applied in a direction substantially parallel to the plane in which the bag walls lie. The tube may be part of a tap or other outlet fitting such as a push-pull tap.
Inventors
- 👤 Peter L. Steer
- 👤 Graham E. Steer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:43
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; A61F; A61F5/00; A61F5/44; A61F5/4404; A61M; A61M39/00; A61M39/22; B; B29; B29C; B29C65/00; B29C65/02; B29C65/56; B29C65/64; B29C65/66; B29C65/68; B29C65/78; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133; B29C66/20; B29C66/23; B29C66/232; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5326; B29C66/53261; B29C66/53262; B29C70/00; B29C70/68; B29C70/74; B29C39/00; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B29C66/72343; B29C66/74; B29C66/742; B29K; B29K2995/00; B29K2995/0037; B29K2995/0065; B29K2995/0067; B29K2995/0068; B29K2995/0069; B29L; B29L2031/00; B29L2031/712; B29L2031/7148; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49913
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
A method of making a bag for containing liquids and having an outlet tube comprising a first step of placing the tube between two superposed bag walls, and by a subsequent step of sliding an encircling sleeve over the tube to a position where it contains within it the portions of the bag walls on either side of the tube, and thirdly, compressing the sleeve onto the tube by a crimping operation in which the lines of action of the crimping forces are perpendicular to a first plane which is substantially perpendicular to the plane containing the walls of the bag, said first plane also containing the longitudinal axis of the tube.
Claim 2
Independent Claim
112 words
A method of making a bag for containing liquids and having an outlet tube comprising a first step of placing the tube between two superposed bag walls, and by a subsequent step of sliding an encircling sleeve over the tube to a position where it contains within it the portions of the bag walls on either side of the tube, and thirdly, compressing the sleeve onto the tube by a crimping operation in which the lines of action of the crimping forces are perpendicular to a first plane which is substantially perpendicular to the plane containing the walls of the bag, said first plane also containing the longitudinal axis of the tube.
Claim 3
Dependent Claim
23 words
A method according to claim 1, in which the crimping force is applied at an angle of 75-105 degrees to the said plane.
Claim 4
Dependent Claim
15 words
A method according to claim 2 in which the said angle is substantially 90 degrees.
Claim 5
Independent Claim
66 words
A method for manufacturing a bag for containing liquids comprising the step of seam or tack welding an outlet tube in position between superposed bag walls and, as a second step, crimping a sleeve around parts of the bag walls and the tube, the sleeve being crimped on with sufficient force to close off any leak paths at the junction of the tube and bag walls.
Claim 6
Independent Claim
66 words
A method for manufacturing a bag for containing liquids comprising the step of seam or tack welding an outlet tube in position between superposed bag walls and, as a second step, crimping a sleeve around parts of the bag walls and the tube, the sleeve being crimped on with sufficient force to close off any leak paths at the junction of the tube and bag walls.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |