US4871599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support helix for a radially expanded resilient sleeve
Assignee: 3M Co
•
Filing: 1988-04-14
•
Granted: 1989-10-03
•
Expires: 2008-04-14
Abstract
Abstract A support helix for a radially expanded sleeve of resilient material which may be used as an enclosure of an elongate object such as an electrical cable, comprising a tubular base body having a constant wall thickness through which circumferentially spaced cuts are formed in a helical pattern along the entire length of the base body. One end portion of the helix is separated from the helix into a strip extending from one end of the helix through the support helix and out of the other end thereof where it may be manually grasped. The connection areas between the spaced cuts are dimensioned so that the support helix can be manually unwound by pulling on the end portion extending through the support helix.
Inventors
- 👤 Winfried Knorr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:13
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/065; H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/192; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/157; B26D1/18; B26D7/00; B26D7/01; B26F; B26F1/00; B26F1/0015; B26F1/0023; B26F1/0061; B26F1/0076; B26F1/18; B26F1/20; H02G1/00; H02G1/14; H02G15/182; H02G15/1826; H02G15/1833; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1352; Y10T428/139; Y10T82/00; Y10T82/10; Y10T82/16; Y10T82/16426; Y10T82/16803; Y10T82/16819; Y10T82/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A support helix for a radially expanded sleeve of resilient material which may be used as an enclosure of an elongate object such as an electrical cable, comprising a molded tubular base body having an undulating exterior surface defining a helical groove along the entire length of the base body, circumferentially spaced cuts being formed through the wall of the base body in the helical groove along the entire length of the base body, one end portion of the helix being separated from the helix into a strip extending from one end of the helix through the support helix and out of the other end thereof where it may be manually grasped, the connection areas between the spaced cuts being dimensioned so that the support helix can be manually unwound by pulling on the end portion.
Claim 2
Dependent Claim
136 words
A support helix for a radially expanded sleeve of resilient material which may be used as an enclosure of an elongate object such as an electrical cable, comprising a molded tubular base body having an undulating exterior surface defining a helical groove along the entire length of the base body, circumferentially spaced cuts being formed through the wall of the base body in the helical groove along the entire length of the base body, one end portion of the helix being separated from the helix into a strip extending from one end of the helix through the support helix and out of the other end thereof where it may be manually grasped, the connection areas between the spaced cuts being dimensioned so that the support helix can be manually unwound by pulling on the end portion.
Claim 3
Dependent Claim
17 words
The support helix of claim 1 wherein the tubular base body has an essentially uniform wall thickness.
Claim 4
Dependent Claim
29 words
The support helix of claim 1 wherein the cuts of are arranged so as to avoid a linear alignment of the cuts along the length of the base body.
Claim 5
Dependent Claim
28 words
The support helix of claim 2 wherein the interior and exterior surfaces of the wall of said tubular base body are smoothly undulating to define the helical groove.
References Cited (Backward Citations)
US3515798A
Cited
US4135553A
Cited
US4338970A
Cited
US4410009A
Cited
US4389440A
Cited
US4503105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |