Joseph E Lescovich

US Patent:

6929238, Aug 16, 2005

Filed:

Sep 15, 2004

Appl. No.:

10/942062

Inventors:

Joseph E. Lescovich - Pittsburgh PA, US
William J. Nicholl - Pittsburgh PA, US

Assignee:

GA Industries Inc. - Cranberry Township PA

International Classification:

F16K031/05
F16K031/48

US Classification:

251 83, 251 54, 25112903

Abstract:

An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. A valve disc having an elongated disc stem contacts a valve seat when in a closed position to stop liquid flow. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement, by action of the momentarily back-flowing liquid, to a back-flow preventing closed position when liquid forward flow is reversed. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat.

US Patent:

7249748, Jul 31, 2007

Filed:

Apr 28, 2005

Appl. No.:

11/117637

Inventors:

Joseph E. Lescovich - Pittsburgh PA, US
William J. Nicholl - Pittsburgh PA, US

Assignee:

GA Industries, Inc. - Cranberry Township PA

International Classification:

F16K 31/05
F16K 31/48

US Classification:

251 83, 251 54, 25112903

Abstract:

An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator.

US Patent:

8127787, Mar 6, 2012

Filed:

Mar 31, 2008

Appl. No.:

12/058867

Inventors:

Joseph E. Lescovich - Pittsburgh PA, US

Assignee:

GA Industries, LLC - Cranberry Township PA

International Classification:

F04F 10/00
F16L 43/00

US Classification:

137143, 13711503, 1372162, 137218

Abstract:

A siphon breaker includes a housing having a gas inlet and a gas outlet. The siphon breaker includes a stop valve adapted to transition from a closed position in which gas is substantially prevented from entering the gas inlet, and an open position in which gas is introduced into the gas inlet. The siphon breaker includes a control valve having a control valve gas inlet, a control valve gas outlet, and an electrically operated actuator. The control valve is adapted to transition from a closed position in which gas is substantially prevented from entering the control valve gas inlet, to an open position in which gas is through the control valve gas inlet.

US Patent:

8465000, Jun 18, 2013

Filed:

Mar 28, 2011

Appl. No.:

13/072852

Inventors:

Joseph E. Lescovich - Pittsburgh PA, US
William J. Nicholl - Pittsburgh PA, US

Assignee:

GA Industries, LLC - Cranberry Township PA

International Classification:

F16K 31/44

US Classification:

251 83, 25112903

Abstract:

An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat. In a preferred method of operation liquid surge pressure transients are reduced or eliminated and slamming of valve components is prevented.

US Patent:

20080061257, Mar 13, 2008

Filed:

Jul 10, 2007

Appl. No.:

11/827132

Inventors:

Donald Bartell - North Sewickley PA, US
Joseph Lescovich - Pittsburgh PA, US
William Nicholl - Pittsburgh PA, US

Assignee:

GA Industries Inc. - Cranberry Township PA

International Classification:

F16K 15/18

US Classification:

251082000

Abstract:

An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. A valve disc having an elongated disc stem contacts a valve seat when in a closed position to stop liquid flow. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement, by action of the momentarily back-flowing liquid, to a back-flow preventing closed position when liquid forward flow is reversed. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat. In a preferred method of operation liquid surge pressure transients are reduced or eliminated and slamming of valve components is prevented.

US Patent:

20130312837, Nov 28, 2013

Filed:

May 17, 2013

Appl. No.:

13/896703

Inventors:

Joseph E. Lescovich - Pittsburgh PA, US
William J. Nicholl - Pittsburgh PA, US

International Classification:

E03B 5/00

US Classification:

137 14, 13756516

Abstract:

An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat. In a preferred method of operation liquid surge pressure transients are reduced or eliminated and slamming of valve components is prevented.

US Patent:

51835681, Feb 2, 1993

Filed:

Aug 22, 1991

Appl. No.:

7/748659

Inventors:

Joseph E. Lescovich - Pittsburgh PA

Assignee:

G A Industries, Inc. - Mars PA

International Classification:

B01D 33067
B01D 3311

US Classification:

2103601

Abstract:

A self-cleaning strainer comprises a vertically disposed housing which contains a rotatable strainer basket. The housing has an open top, closed by a closure plate, an inlet adjacent the top of the housing and an outlet adjacent a closed bottom of the housing, the closed bottom having a flush discharge opening. The components used to rotate the strainer basket are disposed outside the flow of any water containing particulates that enters the housing. Cleaning devices such as a scraper blade supported in the strainer basket, a rotatable brush supported in the strainer basket, and a water jet manifold disposed between the housing sidewall and the sidewall of the strainer basket are used to clean the rotatable strainer basket.

US Patent:

54013968, Mar 28, 1995

Filed:

Jul 6, 1992

Appl. No.:

7/908978

Inventors:

Joseph E. Lescovich - Pittsburgh PA
Warren L. Huggins - Gibsonia PA

Assignee:

GA Industries Inc. - Cranberry Township, Butler County PA

International Classification:

B01D 2964
B01D 2968
B01D 2935

US Classification:

210108

Abstract:

A self-cleaning stationary basket strainer has a housing with an inlet adjacent the top and an outlet adjacent the bottom, with a stationary strainer basket contained therein spaced from the wall of the housing. A flush discharge opening and a backwash discharge opening and provided in the closed bottom of the housing. A hollow backwash conduit is provided adjacent the inner surface of the strainer basket, adapted to move about the inner periphery thereof, and has a passage in the wall thereof communicating with a chamber in the conduit. A discharge section on the hollow backwash conduit communicates with the backwash discharge opening in the housing, the backwash discharge opening sealable when not in use. A scraper blade and extension member are provided on the hollow backwash conduit forming a channel which communicates with the passage. A rotatable brush may also be used which moves about the inner periphery of the strainer basket and brushes the inner surface of the strainer basket.