Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1991-06-19
1993-10-19
Phan, Hien H.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83137, 83138, 83170, 83255, 836395, 83688, 83690, H05K 1300, B26F 114
Patent
active
052535592
ABSTRACT:
A first tool assembly includes a punch holder assembly and a circuit board clamp and a second tool assembly includes a die for receiving punches held and driven by the punch holder assembly. A circuit board has holes formed by the punches and is clamped by the clamp to the die. The circuit board and die are aligned to the punch assembly by an alignment pin secured to the punch assembly operated independently of the operation of the punch assembly. The punch assembly and the clamp are independently controlled by actuators with a convex distortion of the punch assembly and clamp during punching to provide an improved clamping and punching action.
REFERENCES:
patent: 3296912 (1967-01-01), Wanner
patent: 3529502 (1970-09-01), Krynytzky et al.
patent: 3797342 (1974-03-01), Sekel
patent: 4516448 (1985-05-01), Hill et al.
patent: 4646599 (1987-03-01), Benedict
patent: 4696210 (1987-09-01), Cain et al.
patent: 4817477 (1989-04-01), Emery et al.
patent: 4905556 (1990-03-01), Haack et al.
IBM Technical Disclosure Bulletin, vol. 26, No. 10A, Mar. 1984 entitled "Punch Programming Mechanism" by Coneski et al.
Philippe Michel
Sorel Alain
Bartlett Ernestine C.
Phan Hien H.
U.S. Philips Corp.
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