Apparatus for opening and closing a chamber door

Details Apparatus for opening and closing a chamber door Apparatus for opening and closing a chamber door

1992-04-01

1993-10-05

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Operator drives closure along guide

E05F 1100

Patent

active

052493920

ABSTRACT:
An apparatus for moving a chamber door between open and closed positions relative to the opening in a sterilizer or an autoclave chamber. The apparatus is adapted to be used with a door system wherein the door is slidably attached to the chamber by support brackets that are affixed to the end of the chamber. A first set of pulleys are attached to the lower corners of the door and a second set of pulleys, arranged perpendicular to and directly above the first pulleys, are attached to the chamber. A cable, having one end thereof attached to a motorized take-up drum that is attached to the chamber, is received on the first and second pulleys so that the door is suspended on two sides by the cable. The pulley and cable arrangement supports and controls the vertical movement of the door without interfering with the support brackets that are affixed to the chamber. The other end of the cable is attached to a weight for creating tension in the cable.

REFERENCES:
patent: 1358859 (1920-11-01), Leach
patent: 2007552 (1935-07-01), Vetterlein
patent: 2222151 (1940-11-01), Morgan
patent: 2874422 (1959-02-01), Fentiman
patent: 3821865 (1974-07-01), Steinke
patent: 4840080 (1989-06-01), Kobayashi et al.
patent: 5072544 (1991-12-01), Breck, Jr.

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