Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-07-27
1984-04-24
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
72369, 228183, 291573B, 165177, 165181, B23P 1526
Patent
active
044439210
ABSTRACT:
A method for the manufacture of heat exchangers where tubes of rectangular section are assembled with dissipators for forming a plane core which is curved by applying a bending force on the small sides of the tubes, thereby making cores. These cores are assembled by engaging the ends of the tubes into tubular plates which are part of boxes.
REFERENCES:
patent: 1357739 (1920-11-01), Steenstrup
patent: 3340588 (1967-09-01), Mueller et al.
patent: 3443296 (1969-05-01), Clausing
Goldberg Howard N.
Rising V. K.
Societe Anonyme des Usines Chausson
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