1
Robert A Bilbrey, William O Munroe, David G Powell: Hydraulic safety mechanism. California Controls Company, Fitch Even & Tabin, May 27, 1980: US04204513 (5 worldwide citation)

Three embodiments of a hydraulic safety mechanism are adapted to adjust the speed setting for an engine upon a reduction of pressure in a chamber, due for example, to loss of lubricating pressure, overspeeding of the engine or overheating, for example. In each embodiment, a speed control element for ...


2
West Benjamin W: Block and vent valve. California Controls Company, Fitch Even Fabin & Luedeka, January 29, 1974: US3788350 (3 worldwide citation)

A valve assembly is described of the so-called block and vent type wherein the valve is normally closed with the downstream side vented. When a pilot pressure is applied, it first closes the vent and then opens the valve partially. On application of a second pilot signal from another source or from ...


3
Bilbrey Robert A: Temperature responsive device. Benjamin W West d b a California Controls Company, William E Anderson et al, January 8, 1974: US3784095 (1 worldwide citation)

A temperature responsive device is described for use in operating a control element which, for example, controls the opening and closing of a valve or an electrical switch. The control element is moved by a trip rod which, in turn, is moved in response to the expansion and contraction of a plurality ...


4
Robert A Bilbrey: Pneumatic control system. California Controls Company, Fitch Even Tabin & Luedeka, July 6, 1976: US03967577

A pneumatic control system is described including a plurality of annunciators in which movable shuttle elements indicate normal and abnormal conditions. In the event an abnormal condition is sensed causing the shuttle element in any of the annunciators to move to the abnormal position, a bias pressu ...


5
Bilbrey Robert A, Munroe William O, Powell David G: Mecanisme hydraulique de surete, Hydraulic safety mechanism. California Controls Company, MACRAE & CO, September 20, 1983: CA1153944

HYDRAULIC SAFETY MECHANISM ABSTRACT OF THE DISCLOSURE Three embodiments of a hydraulic safety mechanismare adapted to adjust the speed setting for an engine upon areduction of pressure in a chamber, due for example, toloss of lubricating pressure, overspeeding of the engineor overheating, for exampl ...