US3853655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and fixture for welding flexible members into a frame
Assignee: Bielomatik Leuze GmbH and Co KG
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Filing: 1972-06-09
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Granted: 1974-12-10
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Expires: 1992-06-09
Abstract
Abstract A method and apparatus are disclosed for welding a plurality of flexible, elongated members, such as thermoplastic members, at their respective end points to form a frame. One-half of the members are arranged in receptacles in a holder with all the members being in a generally U-shaped configuration and in sideby-side relationship to one another. The remaining members are arranged in receptacles in a second holder which lies adjacent the first holder, with all members in this holder also being in a generally U-shaped configuration with one member partially surrounding all the other members which are situated in side-byside relationship to one another within the U-shaped mouth of the member surrounding them. Each end portion of the members in one holder lies in the same horizontal plane as the end portion of the member in the other holder to which it is to be welded, and all members protrude outwardly from their respective holder and are pointed at the members to which they are to be welded at an angle corresponding to the internal angle at the corners of the frame which is to be formed. After at least one of the holders is moved to bring the end portions of one set of members in close proximity to the corresponding end portions in the other holder, the respective end portions are welded to one another by suitable welding apparatus, such as a welding mirror, to form a unitary frame.
Inventors
- 👤 E Pecha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:04
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/02; B29C66/022; B29C66/0224; B29C66/02241; B29C37/00; B29C37/02; B29C37/04; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/1412; B29C65/1429; B29C65/1432; B29C65/18; B29C65/20; B29C65/2092; B29C65/78; B29C65/7802; B29C65/7841; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/116; B29C66/1162; B29C66/32; B29C66/50; B29C66/51; B29C66/52; B29C66/524; B29C66/5241; B29C66/5243; B29C66/52431; B29C66/80; B29C66/84; B29C66/843; B29C66/8432; B29C2793/00; B29C2793/0081; B29K; B29K2101/00; B29K2101/12; B29L; B29L2031/00; B29L2031/001; B29L2031/003; B29L2031/005; B29L2031/26; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1715
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
176 words
A method of welding together flexible, elongated members at their respective end points to form a frame comprising: a. placing one-half of The flexible members in a first holder and the remaining flexible members in a second holder adjacent said first holder, each of the flexible members being placed in the holders in a generally U-shaped configuration such that the first holder contains at least two of the flexible members in side-by-side relationship whereas the second holder contains at least one flexible member lying, at least in part, within the U-shaped mouth of one other flexible member and such that the respective end portions of the members which are to be welded to one another to form the frame lie adjacent each other; b. moving at least one of said holders towards the other holder to bring pairs of each of the respective end points of the flexible members into a position which allows them to be welded to one another; and c. simultaneously welding the respective end portions to one another to form the frame.
Claim 2
Independent Claim
176 words
A method of welding together flexible, elongated members at their respective end points to form a frame comprising: a. placing one-half of The flexible members in a first holder and the remaining flexible members in a second holder adjacent said first holder, each of the flexible members being placed in the holders in a generally U-shaped configuration such that the first holder contains at least two of the flexible members in side-by-side relationship whereas the second holder contains at least one flexible member lying, at least in part, within the U-shaped mouth of one other flexible member and such that the respective end portions of the members which are to be welded to one another to form the frame lie adjacent each other; b. moving at least one of said holders towards the other holder to bring pairs of each of the respective end points of the flexible members into a position which allows them to be welded to one another; and c. simultaneously welding the respective end portions to one another to form the frame.
Claim 3
Dependent Claim
69 words
A method as claimed in claim 1 wherein the first holder contains three flexible members and the second holder contains two flexible members within the U-shaped mouth of one other flexible member, the end portions of each member lying in the same horizontal plane as the member to which it is to be welded and pointing towards the end portion of that member at an angle of about 120*.
Claim 4
Dependent Claim
74 words
A method as claimed in claim 1 wherein the first holder contains four flexible members in side by side relationship and the second holder contains three flexible members within the U-shaped mouth of one other flexible member, the end portions of each member lying in the same horizontal plane as the member to which it is to be welded and pointing towards the end portion of that member at an angle of about 135*.
Claim 5
Dependent Claim
21 words
A method according to claim 1 which further comprises cutting all end portions which are to be welded to proper size.
Claim 6
Dependent Claim
14 words
A method as claimed in claim 1 wherein the flexible members comprise thermoplastic material.
Claim 7
Dependent Claim
47 words
A method according to claim 5 wherein the end portions of each member project from their respective holder about an equal distance and are moved in close proximity to a welding apparatus by movement of the holders to heat them until they are at least partially plasticized.
Claim 8
Dependent Claim
47 words
A method according to claim 5 wherein the end portions of each member project from their respective holder about an equal distance and are moved into contact with a welding mirror by relative movement of the holders to heat them until they are at least partially plasticized.
Claim 9
Dependent Claim
37 words
A method as claimed in claim 1 which comprises placing the flexible members in the holders so that their respective end portions point in the same direction and project outwardly from the holder about the same distance.
Claim 10
Dependent Claim
44 words
A method as claimed in claim 8 wherein each holder contains two flexible members, the end portions of the members which are to be welded to one another lying in the same horizontal plane and pointing towards one another at an angle of 90*.
References Cited (Backward Citations)
GB842782A
Cited
US3709757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |