US4052498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide apparatus for deflecting a linear structure
Assignee: Oerlikon Barmag AG
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Filing: 1977-02-07
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Granted: 1977-10-04
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Expires: 1997-02-07
Abstract
Abstract A device for deflecting a continuously supplied thread by means of a curved guide tube. The guide tube is formed of a plurality of contiguously abutting segments which are disposed between the entry and exit openings of a casing. The space between the inner wall of the casing and the outer circumference of the segments is filled with a bonding agent which fixes the segments in the desired spatial curvature for the guide tube when it hardens. Furthermore, a method for producing such device is disclosed which utilizes an expandable mandrel to hold the segments in the desired spatial curvature position prior to being fixed in position by the bonding agent.
Inventors
- 👤 Burghard Burow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:22
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/22; B; B21; B21C; B21C47/00; B21C47/02; B21C47/10; B21C47/14; B21C47/143; B65; B65H; B65H54/00; B65H54/76; B65H54/80; B65H57/00; B65H57/12; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/313; B65H2701/3132; Y; Y10; Y10S; Y10S425/00; Y10S425/014; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1089
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
190 words
A method utilizing an expandable mandrel for producing a filament deflecting curved guide tube within a casing. having an entry and exit opening, the guide tube being formed of a plurality of contiguous abutting segments which are held in a fixed array within said casing by means of a bonding agent, said method comprising: inserting the segments in a predetermined order about the mandrel, positioning said mandrel and segments within the casing so that the faces of the first and last segments abut the inner surface of the casing about its entry and exit openings, twisting said segments about said mandrel to a position wherein they form the desired spatial curvature of the guide tube, applying fluid pressure to said mandrel so as to expand its diameter and thereby hold said segments in said desired position, filling the interior of said casing with a bonding agent which hardens about said segments thereby fixing them in said desired position, relieving the fluid pressure from said mandrel so as to allow it to return to its original diameter prior to expansion, and withdrawing said mandrel from within said segment bores and casing.
Claim 2
Independent Claim
190 words
A method utilizing an expandable mandrel for producing a filament deflecting curved guide tube within a casing. having an entry and exit opening, the guide tube being formed of a plurality of contiguous abutting segments which are held in a fixed array within said casing by means of a bonding agent, said method comprising: inserting the segments in a predetermined order about the mandrel, positioning said mandrel and segments within the casing so that the faces of the first and last segments abut the inner surface of the casing about its entry and exit openings, twisting said segments about said mandrel to a position wherein they form the desired spatial curvature of the guide tube, applying fluid pressure to said mandrel so as to expand its diameter and thereby hold said segments in said desired position, filling the interior of said casing with a bonding agent which hardens about said segments thereby fixing them in said desired position, relieving the fluid pressure from said mandrel so as to allow it to return to its original diameter prior to expansion, and withdrawing said mandrel from within said segment bores and casing.
Claim 3
Dependent Claim
17 words
The method of claim 1 further comprising pretensioning said mandrel after it is positioned within said casing.
References Cited (Backward Citations)
US2705360A
Cited
US3168604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |