Walter F Allen

US Patent:

43123767, Jan 26, 1982

Filed:

May 23, 1980

Appl. No.:

6/152544

Inventors:

Walter E. Allen - Prospect CT

Assignee:

Transamerica DeLaval Inc. - Princeton NJ

International Classification:

F16K 1506

US Classification:

137494

Abstract:

The invention contemplates a valve having particular application to the control of flow and pressure within a sanitary-sewer system which includes independently pumped feeders at elevations below an intervening region of greater elevation. The valve, located at the downstream side of the region, of greater elevation, and below the elevation of pumping on the upstream side of the region of greater elevation, provides (a) such a minimum level of pressure at its inlet as to assure against syphoning liquid sewage out of the greater-elevation region, (b) a reduction in hydraulic-head pressure for liquid sewage passed by the valve to the succeeding downstream region of lower elevation, and (c) such balanced response to excessive downstream-region pressure development as to prevent any development of upstream flow through the valve, i. e. , such balanced response as to prevent changes in upstream pressure level with fluctuating downstream pressure level.

US Patent:

43939988, Jul 19, 1983

Filed:

Jul 20, 1981

Appl. No.:

6/285401

Inventors:

Walter E. Allen - Prospect CT
Douglas D. Wilson - Huntington WV

Assignee:

Transamerica DeLaval Inc. - Princeton NJ

International Classification:

F16L 308

US Classification:

248 74R

Abstract:

The invention contemplates tube-clamp structure wherein a split wear sleeve is applied to a metal tube with such resistance to displacement along the tube that displacement wear is accommodated essentially only via the lesser displacement resistance which characterizes a limited axial range of support-clamp engagement around the sleeve. More particularly, the split sleeve has a bonded lining of friction material which contains heat-curable adhesive--so that in a sufficiently elevated ambient temperature environment, as in the vicinity of an aircraft engine, the sleeve will bond to the metal tube; and so that in a lesser ambient-temperature environment, as within an aircraft wing which is subject to flexure, the sleeve will not bond to the metal tube but rather will be displaceable on the metal tube only for such unusual situations of axial play as the clamp-to-sleeve engagement will not accommodate.

US Patent:

40278506, Jun 7, 1977

Filed:

Sep 5, 1975

Appl. No.:

5/610748

Inventors:

Walter E. Allen - Prospect CT

Assignee:

Peter Paul Electronics Co., Inc. - New Britain CT

International Classification:

F16K 3106

US Classification:

251141

Abstract:

A solenoid-operated fluid control valve has an armature assembly which includes a reciprocally moveable impact plunger and a seal pin reciprocally mounted in the plunger and projecting therefrom. A valve insert defines a valve seat and has an integral a guide portion which includes a bore slidably receiving an associated projecting portion of the seal pin therein to guide it into seating engagement with the valve seat and to maintain it in alignment with the valve seat at all times.

US Patent:

42956315, Oct 20, 1981

Filed:

Mar 21, 1980

Appl. No.:

6/131950

Inventors:

Walter E. Allen - Prospect CT

International Classification:

F16K 3102

US Classification:

251 30

Abstract:

A solenoid operated valve with a primary diaphragm type valve member controlled in accordance with the fluid pressure on opposite sides thereof and a solenoid operated pilot valve having a fixed axially extending pilot valve outlet tube extending through a central opening in the diaphragm valve member and operable for selectively referencing the fluid pressure on one side of the diaphragm with the valve outlet pressure.

US Patent:

42680093, May 19, 1981

Filed:

Jun 6, 1979

Appl. No.:

6/046024

Inventors:

Walter Allen - Prospect CT

Assignee:

Peter Paul Electronics - New Britain CT

International Classification:

F16K 3110

US Classification:

251138

Abstract:

A solenoid-operated normally open two-way fluid control valve has a lever operably connecting a reciprocally movable solenoid plunger and a reciprocally movable seal pin. When the solenoid is in its deenergized condition the solenoid plunger acts upon the lever to maintain the seal pin in its normal open or unseated position. Energization of the solenoid removes the influence of the plunger upon the lever and permits the seal pin to be spring biased to its closed or seated position. When the solenoid is deenergized the solenoid plunger is spring biased toward the lever and acts through the lever to exert impact force on the seal pin to unseat it.

US Patent:

39659232, Jun 29, 1976

Filed:

Aug 16, 1974

Appl. No.:

5/498089

Inventors:

Walter E. Allen - Prospect CT

Assignee:

Peter Paul Electronics Co., Inc. - New Britain CT

International Classification:

F16K 1102

US Classification:

137315

Abstract:

A solenoid-actuated four-way fluid control valve assembly has a body assembly mounting a pair of solenoids and defining two valve chambers each containing an axially elongated generally L-shaped plunger assembly and a pair of valve seats. Each plunger assembly is spring biased to closing engagement with one of the valve seats and is shiftable axially to another position to open the one valve seat and close the other in response to energization of an associated one of the solenoids. A transfer plate mounted on the valve body determines flow paths through the valve assembly and carries needle valves for selectively regulating flow in each of the latter paths. The two plunger assemblies, the biasing springs therefor, and a cartridge which provides a closure for the two valve chambers comprise a cartridge assembly which may be removed from the valve body as a unit to facilitate repair or replacement of operational parts of the valve assembly.

US Patent:

40561194, Nov 1, 1977

Filed:

Jun 22, 1976

Appl. No.:

5/698746

Inventors:

Walter E. Allen - Prospect CT

Assignee:

Peter Paul Electronics Co., Inc. - New Britain CT

International Classification:

F16K 3102

US Classification:

137315

Abstract:

A solenoid-actuated four-way fluid control valve assembly has a body assembly mounting a pair of solenoids and defining two valve chambers each containing an axially elongated generally L-shaped plunger assembly and a pair of valve seats. Each plunger is spring biased to closing engagement with one of the valve seats and is shiftable axially to another position to open the one valve seat and close the other in response to energization of an associated one of the solenoids. A transfer plate mounted on the valve body determines flow paths through the valve assembly and carries needle valves for selectively regulating flow in each of the latter paths. The two plunger assemblies, the biasing springs therefor, and a cartridge which provides a closure for the two valve chambers comprise a cartridge assembly which may be removed from the valve body as a unit to facilitate repair or replacement of operational parts of the valve assembly.

US Patent:

44247761, Jan 10, 1984

Filed:

Apr 2, 1982

Appl. No.:

6/364800

Inventors:

Walter E. Allen - Prospect CT

Assignee:

Transamerica DeLaval Inc. - Princeton NJ

International Classification:

F02N 1702
B01D 3502

US Classification:

1231425R

Abstract:

The invention contemplates a continuously circulating pumped flow of diesel-engine fuel, involving thermodynamic coupling to the engine's coolant-circulation system (a) while the engine is operating and (b) involving selectively available thermodynamic coupling to an externally supplied electric-heater element during periods of engine shut-down. To assure fuel circulation during such operation of the heater element, a rectifier taps the external electric supply to provide pump excitation and thus not to drain the charge on the storage battery associated with the engine.