Method of making an orbital friction fusion a welded joint in th

Details Method of making an orbital friction fusion a welded joint in th Method of making an orbital friction fusion a welded joint in th

1993-10-08

1994-09-27

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156212, 156468, 156475, 156502, 156580, B32B 3120

Patent

active

053504720

ABSTRACT:
A novel method and apparatus are provided for making an improved welded joint between overlapping lengths of thermoplastic strap. The welded joint includes a central region and an adjacent peripheral region. The pressure on the strap joint during formation is released first in the peripheral region and subsequently in the central region. An embodiment of the apparatus for making such a joint includes an anvil, a central strap-engaging member, a peripheral strap engaging member, and a mechanism for moving the anvil sequentially to three positions. At a first position the overlapping strap lengths are pressed between the anvil and both the central and peripheral strap-engaging members. In the second position of the anvil the peripheral strap-engaging member does not press against the strap lengths while the central strap-engaging member continues to press the strap lengths against the anvil. In the third position of the anvil, the anvil and strap-engaging members are sufficiently spaced apart to release all of the pressure on the strap lengths.

REFERENCES:
patent: 3062695 (1962-11-01), Hull
patent: 3554845 (1971-01-01), Billett et al.
patent: 3554846 (1971-07-01), Billett
patent: 4119449 (1978-10-01), Gould et al.
patent: 4227949 (1980-10-01), Wehr
patent: 4247346 (1981-01-01), Maehara et al.
patent: 4378262 (1983-03-01), Annis, Jr.
patent: 4462849 (1984-07-01), MacLaughlin et al.
patent: 4707390 (1987-11-01), Cheung
patent: 4776905 (1988-10-01), Cheung et al.
patent: 4892768 (1990-01-01), Cheung et al.

Affiliated with

Also associated with

Rating

Method of making an orbital friction fusion a welded joint in th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making an orbital friction fusion a welded joint in th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making an orbital friction fusion a welded joint in th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1263711