US5670223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support core ribbon for cold-shrink tube
Assignee: 3M Co
•
Filing: 1995-02-06
•
Granted: 1997-09-23
•
Expires: 2015-02-06
Abstract
Abstract A core for a cold-shrink tubing assembly is produced from a ribbon helically wound on itself to form a cylindrical tube. The edges of the ribbon are formed to interlock with each other and are contoured to facilitate ultrasonic welding of the edges.
Inventors
- 👤 James L. Sadlo
- 👤 Eugene J. Melancon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:47
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/76; B29C53/00; B29C53/56; B29C53/58; B29C53/78; B29C53/785; B29C61/00; B29C61/06; B29C61/0608; B29C61/065; B29C65/56; B29C65/58; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/128; B29C66/1284; B29C66/12841; B29C66/12842; B29C66/1288; B29C66/12881; B29C66/14; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4329; H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/182; H02G15/1826; H02G15/1833; B29C65/02; B29C65/08; B29C65/48; B29C65/4895; B29C65/72; Y; Y10; Y10S; Y10S174/00; Y10S174/09; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1331; Y10T428/1352; Y10T428/139
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A ribbon having first and second major surfaces and first and second edges and adapted to be edge joined to itself to form a helically-wound tube, the ribbon comprising: a first coupling projection extending from said first major surface toward said second major surface and terminating short of said second major surface; a second coupling projection extending from said second major surface toward said first major surface and terminating short of said first major surface; recesses in said ribbon adjacent said first and said second coupling projections for accepting said projections and thus permit said first coupling projection of one ribbon section to engage said second coupling projection of another ribbon section with the major surfaces of said ribbon sections aligned to form a smooth surface on said tube; said coupling projections being formed such that said first and said second coupling projections engage each other along a continuous surface free of any surfaces which are perpendicular to said major surfaces, at least one of said recesses being larger than the coupling projection to be inserted therein so that an open area is provided adjacent said coupling projection when said coupling projection is inserted within said one recess.
Claim 2
Dependent Claim
198 words
A ribbon having first and second major surfaces and first and second edges and adapted to be edge joined to itself to form a helically-wound tube, the ribbon comprising: a first coupling projection extending from said first major surface toward said second major surface and terminating short of said second major surface; a second coupling projection extending from said second major surface toward said first major surface and terminating short of said first major surface; recesses in said ribbon adjacent said first and said second coupling projections for accepting said projections and thus permit said first coupling projection of one ribbon section to engage said second coupling projection of another ribbon section with the major surfaces of said ribbon sections aligned to form a smooth surface on said tube; said coupling projections being formed such that said first and said second coupling projections engage each other along a continuous surface free of any surfaces which are perpendicular to said major surfaces, at least one of said recesses being larger than the coupling projection to be inserted therein so that an open area is provided adjacent said coupling projection when said coupling projection is inserted within said one recess.
Claim 3
Dependent Claim
18 words
A ribbon according to claim 1 further including spaced perforations extending through said ribbon at said one recess.
Claim 4
Dependent Claim
218 words
An elastic sleeve assembly comprising an elastic sleeve member supported in highly stretched condition on a hollow core formed of a ribbon having first and second major surfaces and first and second edges and adapted to be edge joined to itself to form a helically-wound tube, the ribbon comprising: a first coupling projection extending from said first major surface toward said second major surface and terminating short of said second major surface; a second coupling projection extending from said second major surface toward said first major surface and terminating short of said first major surface; recesses in said ribbon adjacent said first and said second coupling projections for accepting said projections and thus permit said first coupling projection of one ribbon section to engage said second coupling projection of another ribbon section with the major surfaces of said ribbon sections aligned to form a smooth surface on said tube; said coupling projections being formed such that said first and said second coupling projections may engage each other along a substantially continuous surface free of any surface perpendicular to said major surfaces, at least one of said recesses being larger than the coupling projection to be inserted therein so that an open area is provided adjacent said coupling projection when said coupling projection is inserted within said one recess.
Claim 5
Dependent Claim
218 words
An elastic sleeve assembly comprising an elastic sleeve member supported in highly stretched condition on a hollow core formed of a ribbon having first and second major surfaces and first and second edges and adapted to be edge joined to itself to form a helically-wound tube, the ribbon comprising: a first coupling projection extending from said first major surface toward said second major surface and terminating short of said second major surface; a second coupling projection extending from said second major surface toward said first major surface and terminating short of said first major surface; recesses in said ribbon adjacent said first and said second coupling projections for accepting said projections and thus permit said first coupling projection of one ribbon section to engage said second coupling projection of another ribbon section with the major surfaces of said ribbon sections aligned to form a smooth surface on said tube; said coupling projections being formed such that said first and said second coupling projections may engage each other along a substantially continuous surface free of any surface perpendicular to said major surfaces, at least one of said recesses being larger than the coupling projection to be inserted therein so that an open area is provided adjacent said coupling projection when said coupling projection is inserted within said one recess.
Claim 6
Dependent Claim
20 words
An elastic cover assembly according to claim 3 further including spaced perforations extending through said ribbon at said one recess.
References Cited (Backward Citations)
US3515798A
Cited
US3808352A
Cited
WO1983000779A1
Cited
US4389440A
Cited
US4503105A
Cited
US4871599A
Cited
US4934227A
Cited
EP0619636A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-22 | 2001-03-24 | 2001-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-22 | 2005-03-24 | 2005-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-22 | 2009-03-24 | 2009-09-23 | $7700.00 | Window Closed / Lapsed |