Automated hatch opening device

Details Automated hatch opening device Automated hatch opening device

1998-04-08

1999-08-17

Redman, Jerry

Movable or removable closures

Operator interrelated with closure latch release

49280, E05F 1102

Patent

active

059375817

ABSTRACT:
A hatch opening and closing device for a vehicle includes a cover, which is adapted to cover and seal an opening in a vehicle and to pivot between an open position and a closed position, and at least one locking device, which is adapted to move between an unlocked position and a locked position. The locking devices includes an engagement surface for engaging the cover when the cover is in the closed position thereby locking the cover in the closed position. The cover is releasably coupled to the locking device by a lost motion device over a first range of motion and decoupled from the locking device over a second range of motion so that the locking device can be independently moved from the cover. The hatch opening and closing device further includes a driver, which pivots the locking device and cover between the unlocked position and the locked position and the open position and the closed position, respectively.

REFERENCES:
patent: 706829 (1902-08-01), Johnson
patent: 2464670 (1949-03-01), Carlson
patent: 2551750 (1951-05-01), Liskey
patent: 3557497 (1971-01-01), Schafer et al.
patent: 5001866 (1991-03-01), Powell et al.
One (1) page from KNAPPCO Catalog dated Jan. 1987 illustrating a manhole cover.

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