Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1976-02-11
1978-03-14
Moon, Charlie T.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29DIG47, 29407, 29526R, 52455, B23P 1700
Patent
active
040782883
ABSTRACT:
An entrance door with a plurality of extruded sections that are interconnected to form a rectangular frame, a glass panel mounted within the frame. The door is partially fabricated by punching openings at specified locations on the extruded sections. The openings are punched in a press that is provided with guideways and stops for positioning the extruded sections in alignment with a punching tool. The punched openings are configured to receive a lock mechanism and hinge hardware as well as tie rods that are used for interconnecting the sections.
REFERENCES:
patent: 2706543 (1955-04-01), Kammerer
patent: 2889899 (1959-06-01), Bianco
patent: 3284976 (1966-11-01), Kadish
Moon Charlie T.
Morse Altman, Oates & Bello
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