Window operator

Details Window operator Window operator

1997-05-19

1998-09-08

Marmor, Charles A.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

49333, 49342, 74606R, E05F 1124

Patent

active

058029133

ABSTRACT:
A casement and awning window operator consisting of four parts, a top cover, a base, a worm gear receivable in a pocket on the base and top and a geared actuating arm engaging the worm gear having an integral arm extending out of the operator. The cover is secured to the base by an adhesive applied to matching surfaces of the cover and base trapping the worm gear therein. The cover and base are made from two plastic halves in a generally horizontal parting plane thus presenting a large adhesive contact area in a plane putting the contact surfaces in shear and allowing insertion of the gear and arm prior to assembly. The cover and base may have molded parts providing a spring-like effect to control the friction of the operator to prevent it from rotating out of a set position.

REFERENCES:
patent: 1422552 (1922-07-01), Fournier
patent: 2214280 (1940-09-01), Lang
patent: 2635485 (1953-04-01), Gravenstine et al.
patent: 2929264 (1960-03-01), Martin
patent: 4037483 (1977-07-01), Nada
patent: 4505601 (1985-03-01), Sandberg et al.
patent: 5531138 (1996-07-01), Vetter

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