Joseph Michael Pellegrino

US Patent:

49898280, Feb 5, 1991

Filed:

Jul 25, 1990

Appl. No.:

7/556991

Inventors:

Joseph C. Pellegrino - Baldwin NY

Assignee:

Grumman Aerospace Corporation - Bethpage NY

International Classification:

F15B 1301

US Classification:

251 58

Abstract:

An ancillary mechanically driven ball lock control valve actuation plunger cooperates with a piston for displacing a timer valve plunger. An annular locking plunger is pressurized by fluid at a control port, the sliding motion of the plunger controlling the position of locking balls. As the locking balls change their position, they vary the radial extension of a radial plunger. A first portion of a spring-biased cam maintaining contact with the outward end of the radial plunger. When the radial plunger moves to an extended position, it moves the cam until a second cam portion depresses a timer valve plunger thus changing the timer valve state.

US Patent:

52614549, Nov 16, 1993

Filed:

Nov 30, 1992

Appl. No.:

7/982960

Inventors:

James J. Pavlica - East Northport NY
Joseph C. Pellegrino - Baldwin NY

Assignee:

Grumman Aerospace Corporation - Bethpage NY

International Classification:

F16K 11065
F16K 2502
F16K 320

US Classification:

13762548

Abstract:

A multiport selector valve incorporates a polished interface between a respective poppet of each port and a displaceable valve spool. A controlled gap exists between each poppet and its respective port fitting to pressurize a recess in which an O-ring is seated during operation of the valve. This results in the O-ring seal being urged against a confronting surface of the poppet which increases the contact force between optical surfaces of the poppet and the spool, particularly during periods of dynamic flow. The construction of the valve results in a unit of high reliability and useful life with attendant reduction of replacement costs.

US Patent:

49971603, Mar 5, 1991

Filed:

Jun 8, 1990

Appl. No.:

7/534950

Inventors:

Joseph C. Pellegrino - Baldwin NY

Assignee:

Grumman Aerospace Corporation - Bethpage NY

International Classification:

F15B 1301

US Classification:

251 62

Abstract:

An ancillary hydraulic driven ball lock control valve actuation plunger cooperates with a piston for displacing a timer valve. An annular locking plunger is pressurized by fluid at a control port, the sliding motion of the plunger controlling the position of locking balls. As the locking balls change their position, they vary the radial extension of a further plunger assembly, the latter having detent means for displacing the plunger of a timer valve and thereby changing the valve's state.