Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1974-02-11
1976-01-20
Eager, Thomas H.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B23p 1904
Patent
active
RE0286842
ABSTRACT:
Apparatus for automatically connecting shutter slat and preventing its disengagement, which automatically connects one shutter slat with another having a notch and slots for preventing its disengagement and cut in the specified dimension, and also prevents the connected shutter slats from being disengaged from each other.
REFERENCES:
patent: 3466727 (1969-09-01), Buker et al.
patent: 3503111 (1970-03-01), Janecek
patent: 3651555 (1972-03-01), Kataoka
Eager Thomas H.
Overhead Door Corporation
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