Motor-operated sliding door assembly

Details Motor-operated sliding door assembly Motor-operated sliding door assembly

1987-03-18

1988-07-05

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Closure-mounted drive

49139, E05F 1100

Patent

active

047545720

ABSTRACT:
A motorized drive unit for a horizontally sliding door section comprising a unitary housing assembly holding a drive motor and a floor-engaging wheel driven from the motor. A vertical lead screw fixedly positioned vertically on this housing assembly threadedly engages a nut fixedly positioned on the door section, so that the wheel can be raised from engagement with the floor. The housing assembly is slidable vertically on a support plate attached to the door section. A support member for the nut is attached to the same support plate.

REFERENCES:
patent: 1631416 (1927-06-01), Howard
patent: 1694431 (1928-12-01), Russell et al.
patent: 3257765 (1966-06-01), Mealer
patent: 3462883 (1969-08-01), Reeks et al.
patent: 3606699 (1969-09-01), Robinson, Jr.
patent: 3775906 (1973-12-01), Dougherty
patent: 4162592 (1979-07-01), Taniwaki
patent: 4520592 (1985-06-01), Holloway
patent: 4672773 (1987-06-01), Bilt
1011, 1975, Norco Manufacturing Corporation Bulletin.
M. Bilt Enterprises, "Well Bilt Hangar Door Systems" Bulletin.

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