Welding sleeve of thermoplastic material

Electric heating – Heating devices – With heating unit structure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

156272, 1563809, 219535, 26427219, 285 21, H05B 358

Patent

active

043130534

ABSTRACT:
A sleeve member (4) formed from a pipe length by expansion is placed over a mandrel onto which are wound the spaced turns (7) of a resistance heating wire (6). By heating sleeve member (4) the latter is shrunk onto the turns (7). By electrically producing heat in wire (6) material flows around the expanding turns (7) and embed the latter completely in sleeve member (4), projecting material portions (8, 9) being formed in the vicinity of turns (7). Thus, a protection against electric shock hazard is obtained for turns (7) and after-working is made unnecessary for the standing back edge portions of inner wall (5) which deform inwards during manufacture.

REFERENCES:
patent: 2223434 (1940-12-01), Trickey
patent: 3094452 (1963-06-01), von Riegen et al.
patent: 3422179 (1969-01-01), Bauer et al.
patent: 3943334 (1976-03-01), Sturm
patent: 3954541 (1976-05-01), Landgraf
patent: 4117311 (1978-09-01), Sturm
patent: 4147926 (1979-04-01), Stahli
patent: 4176274 (1979-11-01), Lippera
patent: 4224505 (1980-09-01), Sturm

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Welding sleeve of thermoplastic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Welding sleeve of thermoplastic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Welding sleeve of thermoplastic material will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1668031

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.