Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1987-01-30
1989-07-11
Rosenbaum, Mark
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291571R, 29447, 264242, 403360, 403361, B21K 2900
Patent
active
048458198
ABSTRACT:
Two plastic tubelike members on which an annular protrusion or an annular groove are respectively provided to be used as two constructive block members for assembling valve or joint devices are directly coupled to assemble such devices. Critical dimensional relationships on the coupling end having the annular groove are established wherein a deformation process can be controlled to engage the annular groove with the annular protrusion by a radially widening motion and an axially spring motion in elastic dynamics, while the coupling end having the annular groove is softened by heating to become elastic. High coupling accuracy can be secured with high coupling strength and durability.
REFERENCES:
patent: 2832130 (1958-04-01), Harvey
patent: 3626978 (1971-12-01), Hoekstra
patent: 3828418 (1974-08-01), Laurizio
patent: 3993099 (1976-11-01), Nightingale
patent: 4410295 (1983-10-01), Ersoy et al.
patent: 4411634 (1983-10-01), Hammelmann
patent: 4532690 (1985-08-01), Del Bon et al.
patent: 4650228 (1987-03-01), McMills et al.
Ishihara Katsuro
Kajiwara Hideki
Kawamura Yoshinori
Kyomen Junsuke
Matsumoto Keiji
Chin Frances
Kubota Limited
Rosenbaum Mark
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