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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Pandorf; Robert C.
Address:
Newton Highlands, MA
No. of patents:
6
Patents:












Patent Number Title Of Patent Date Issued
5932332 Heated pressure transducer assembly August 3, 1999
The disclosed pressure transducer assembly includes an external enclosure, a thermal shell disposed within the external enclosure, and a pressure sensor disposed within the thermal shell. The pressure sensor senses the gas or vapor pressure present in a tube coupling the sensor to a sour
5808206 Heated pressure transducer assembly September 15, 1998
The disclosed pressure transducer assembly includes an external enclosure, a thermal shell disposed within the external enclosure, and a pressure sensor disposed within the thermal shell. The pressure sensor senses the gas or vapor pressure present in a tube coupling the sensor to a sour
5625152 Heated pressure transducer assembly April 29, 1997
The disclosed heated pressure transducer includes an external enclosure, a first thermal shell housed within the external enclosure, and a sensor housed within the first thermal shell. The transducer further includes a heater for heating the first thermal shell and a control unit for
5271277 Capacitance pressure transducer December 21, 1993
The present invention provides a capacitance pressure transducer of increased thermal and mechanical stability and thus performance over prior art designs. A cell formed by a cell housing containing a plane parallel capacitor plate and an inlet tube is connected to an outer protective
4719938 Self-cleaning valve and cryopump utilizing the same January 19, 1988
The pressure relief valve is debris resistant, self-cleaning, and self-actuating in a cryopump. It includes an o-ring carried by a valve member within a valve cylinder. In opening, the valve member moves away from an end port to open vent ports in the side of the valve cylinder while
4718240 Cryopump regeneration method and apparatus January 12, 1988
A cryopump is regenerated by means of an ejector pump which draws gas from the cryopump as the pump is warmed. The ejector is actuated by an inert gas. The same inert gas may also be used to purge the pump during evacuation.










 
 
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