Serving window

Details Serving window Serving window

1990-05-21

1991-07-09

Kannan, Philip C.

Movable or removable closures

Closures interconnected for concurrent movement

Opposed similar movement

49356, E05F 1700

Patent

active

050294148

ABSTRACT:
In a serving window having a pair of center-opening swinging window members of the type illustrated and described in U.S. Pat. No. 4,862,639, a crank pin, extending downwardly from the crank arm of each window member, extends into a channel carried by an elongated bar extending between the crank pins. The bar is pivoted asymmetrically and is rocked about its pivot point by an operator shaft positioned substantially midway between the window members. A link is pivoted at one end to the operator shaft and at its other end, to the bar adjacent one end thereof.

REFERENCES:
patent: 1249220 (1917-12-01), Simpson
patent: 4702037 (1987-10-01), Hollowell et al.
patent: 4862639 (1989-09-01), Leach et al.

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