David G Matz

US Patent:

20210207620, Jul 8, 2021

Filed:

Jan 19, 2021

Appl. No.:

17/152255

Inventors:

- Waukesha WI, US
Edward R. Horn - Hartland WI, US
David M. Matz - Hartland WI, US
Gregory F. Matz - Waukesha WI, US
Scott R. Jones - Waukesha WI, US

International Classification:

F15B 13/02
F15B 15/14
F15B 13/042
F15B 13/04
F15B 15/20
F16K 11/02
F16K 15/04
F15B 11/04
F16K 15/18
F16K 27/02
F16K 11/20
F16K 1/04

Abstract:

A valve system for use with a cylinder having an extensible rod, includes first and second valve assemblies, each including an inlet/outlet port configured to selectively be coupled with a source of pressurized gas, a check valve biased toward a closed state and having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the inlet/outlet port and the check valve, and an inlet pilot port connected with the check valve for opening the check valve when supplied with pressurized gas. First and second pilot lines extend to the respective inlet pilot ports from respective outlet pilot ports of the opposite ones of the first and second valve assemblies. When pressurized gas is supplied to the inlet/outlet port of a valve assembly, pressurized gas is also supplied to the opposite inlet pilot port.

US Patent:

20200056634, Feb 20, 2020

Filed:

Oct 23, 2019

Appl. No.:

16/661738

Inventors:

- Waukesha WI, US
Edward R. Horn - Hartland WI, US
David M. Matz - Hartland WI, US
Gregory F. Matz - Waukesha WI, US
Scott R. Jones - Waukesha WI, US

International Classification:

F15B 13/02
F15B 15/20
F15B 15/14
F15B 13/042
F15B 13/04
F16K 11/02
F16K 15/04
F15B 11/04
F16K 15/18
F16K 27/02
F16K 11/20
F16K 1/04

Abstract:

A valve system for use with a cylinder having an extensible rod, includes first and second valve assemblies, each including an inlet/outlet port configured to selectively be coupled with a source of pressurized gas, a check valve biased toward a closed state and having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the inlet/outlet port and the check valve, and an inlet pilot port connected with the check valve for opening the check valve when supplied with pressurized gas. First and second pilot lines extend to the respective inlet pilot ports from respective outlet pilot ports of the opposite ones of the first and second valve assemblies. When pressurized gas is supplied to the inlet/outlet port of a valve assembly, pressurized gas is also supplied to the opposite inlet pilot port.

US Patent:

20180195533, Jul 12, 2018

Filed:

Mar 5, 2018

Appl. No.:

15/911775

Inventors:

- Waukesha WI, US
Edward R. Horn - Hartland WI, US
David M. Matz - Hartland WI, US
Gregory F. Matz - Waukesha WI, US
Scott R. Jones - Waukesha WI, US
Edward C. Horn - Hartland WI, US

International Classification:

F15B 13/02
F15B 13/04
F15B 13/042
F15B 15/14
F15B 15/20

Abstract:

A valve system for use with a cylinder having an extensible rod. includes a first valve assembly including a first inlet/outlet port, a check valve biased toward a closed suite, the cheek valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a pressurized gas for opening the check valve. The valve system further include a second valve assembly including a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder, wherein the second inlet/outlet port and the second pilot port are integrally formed as a portion of the valve body.

US Patent:

20180180189, Jun 28, 2018

Filed:

Feb 23, 2018

Appl. No.:

15/903532

Inventors:

- Waukesha WI, US
Edward R. Horn - Hartland WI, US
David M. Matz - Hartland WI, US
Gregory F. Matz - Waukesha WI, US
Scott R. Jones - Waukesha WI, US
Edward C. Horn - Hartland WI, US

International Classification:

F16K 15/04
F15B 15/14
F15B 15/20
F16K 11/02

Abstract:

A valve system for use with a cylinder having an extensible rod, includes a first valve assembly including a first inlet/outlet port, a check valve biased toward a closed state, the check valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a pressurized gas for opening the check valve. The valve system further includes a second valve assembly including a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder, wherein the second inlet/outlet port and the second pilot port are integrally formed as a portion of the valve body.

US Patent:

20170370486, Dec 28, 2017

Filed:

Jun 22, 2016

Appl. No.:

15/189707

Inventors:

- Waukesha WI, US
Edward R. Horn - Hartland WI, US
David M. Matz - Hartland WI, US
Gregory F. Matz - Waukesha WI, US
Scott R. Jones - Waukesha WI, US

International Classification:

F16K 15/04
F16K 11/00
F15B 15/20
F16K 27/02
F15B 15/14

Abstract:

A valve system, for use with a cylinder having an extensible rod, includes a first valve assembly having a first inlet/outlet port, a check valve biased toward a closed state, the check valve having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the first inlet/outlet port and the check valve, and a first pilot port selectively communicable with a source of pressurized gas for opening the check valve. The valve system further includes a second valve assembly having a second inlet/outlet port, a second pilot port through which the pressurized gas must flow before being introduced to the first pilot port, and a valve body at least partially receivable within a second port of the cylinder.