Window operator

Details Window operator Window operator

1988-05-20

1989-06-20

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

29444, 29445, 403154, 49341, F16H 2920

Patent

active

048400750

ABSTRACT:
A window operator having a base with an upstanding pivot pin having a bushing thereon and at least one component pivotally mounted on the bushing. The components are held in assembled relation by a captured washer and the washer has an outer annular portion formed to provide a controlled clearance. A method of forming the window operator comprises assembly of the pivot pin, bushing and pivotal component to a mounting base and the capturing of a washer beneath the head of the pivot pin and with an inner annular part of the washer engaging an upper edge of the bushing which extends beyond the upper surface of the pivotal component, followed by a deformation of the outer annular part of the washer to compress the pivotal component between the washer and the base followed by release of the compressive force to permit spring-back of the outer annular part of the washer to provide the controlled clearance.

REFERENCES:
patent: 2241513 (1941-05-01), Hagstrom
patent: 2570429 (1951-10-01), Cooper
patent: 2635485 (1953-04-01), Gravenshine et al.
patent: 2696018 (1954-12-01), Hollister
patent: 2713806 (1955-07-01), Dodge
patent: 2904876 (1959-09-01), Edelen
patent: 2921819 (1960-01-01), Rifkin
patent: 3169418 (1965-02-01), Borowsky
patent: 3357084 (1967-12-01), Colautti et al.
patent: 3766631 (1973-10-01), Scheitlin et al.
patent: 3840974 (1974-10-01), Georgen et al.
patent: 4202243 (1980-05-01), Leonhardt

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