Supports: cabinet structure – With movable components – Continuously housed
Patent
1989-01-23
1990-03-27
Falk, Joseph
Supports: cabinet structure
With movable components
Continuously housed
108147, A47B 5700
Patent
active
049123599
ABSTRACT:
A freeze dry unit having several novel features is the subject of this invention. A plurality of shelves are placed in the drying unit and are coupled with cables which serve to interconnect three points on each shelf. This assures that an upward force applied at any point on the shelf will be distributed over the entire shelf and the shelf will rise in a true horizontal plane. An improved refrigeration system is also provided which incorporates an auxiliary capillary tube that can be bypassed by a solenoid valve or used to reduce the volume of refrigerant flowing through the system thereby decreasing the load on the compressor. The invention also encompasses a closure door that incorporates a novel hinge and mounting assembly which assures that opening and closing of the door will not pinch the door seal thus deteriorating it. The door assembly also provides for the application of closing forces to be distributed relatively equally over all four sides of the door panel thus facilitating formation of an airtight seal.
REFERENCES:
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patent: 3300262 (1967-01-01), Stephenson
patent: 3316044 (1967-04-01), Carbary
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patent: 4619208 (1986-10-01), Kurrasch
patent: 4651652 (1987-03-01), Wyckoff
patent: 4751884 (1988-06-01), Ball
Nelson Larry W.
Offutt Bradley E.
Falk Joseph
Labconco Corporation
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