Access door

Details Access door Access door

2007-07-17

2007-07-17

Redman, Jerry (Department: 3634)

Movable or removable closures

With means mounting closure for swinging

With latch or lock

C292S091000, C292S303000, C292S341170

Reexamination Certificate

active

10944687

ABSTRACT:
An access door has a rectangular outer frame adapted to be set in a wall and having two longitudinal sides and two transverse sides defining four corners and a rectangular inner frame congruent to the outer frame, having longitudinal and transverse sides and four corners, and dimensioned to fit within the outer frame. Hinges at corners at ends of one of the longitudinal sides hold the inner frame in the outer frame and allow pivoting of the inner frame in the outer frame generally about the one longitudinal side. Two transversely effective spring latches are provided at the other longitudinal side near ends thereof between the inner and outer frames, and two longitudinally effective spring latches are provided at the transverse sides near the other longitudinal side between the inner and outer frames.

REFERENCES:
patent: 669008 (1901-02-01), Franken
patent: 1973971 (1934-09-01), West
patent: 4709949 (1987-12-01), Umezawa et al.
patent: 4881764 (1989-11-01), Takahashi et al.
patent: 6038892 (2000-03-01), Schmitt
patent: 6446393 (2002-09-01), Marston et al.
patent: 37 36 060 (1988-12-01), None

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