John Grenaway resumes & CV records
Resumes
John Rufus Grenaway, 65Savannah, GA
John Grenaway Phones & Addresses
Pooler, GA
North Charleston, SC
314 Carroll Dr NW, Cullman, AL 35057 256-7371078
306 10Th St, Cullman, AL 35055 256-7347558
Huntersville, NC
Edwardsville, IL
Morton, PA
Indianapolis, IN
Lenox Dale, MA
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Publications & IP owners
Us Patents
Diaphragm Controlled Bypass Valve
US Patent:
8028712, Oct 4, 2011
Filed:
Jul 7, 2008
Appl. No.:
12/168272
Inventors:
John R. Grenaway - Edwardsville IL, US
Mark K. Hamm - Cullman AL, US
William Clinton Osteen - Hartselle AL, US
Mark K. Hamm - Cullman AL, US
William Clinton Osteen - Hartselle AL, US
Assignee:
Tyco Valves & Controls LP - Houston TX
International Classification:
G05D 11/00
US Classification:
1371165, 251 77
Abstract:
A diaphragm controlled bypass valve includes a diaphragm valve portion and a needle valve portion. The diaphragm valve portion regulates pressurized gas supplied from a pump to determine whether or not to open or close a needle valve. The needle valve portion includes an inlet port, an outlet port and a flow pathway defined between the inlet and outlet ports. A needle pin is disposed within the flow pathway and is coupled to a diaphragm positioned within the diaphragm valve portion. When the diaphragm is displaced in response to changes in pressure, the needle valve pin is likewise displaced which opens and closes the flow pathway. A second flowpath disposed in the needle valve portion communicates with the inlet port to redirect the supply of pressurized gas to a relief port.
Diaphragm Controlled Bypass Valve
US Patent:
8066026, Nov 29, 2011
Filed:
May 8, 2008
Appl. No.:
12/117524
Inventors:
John R. Grenaway - Edwardsville IL, US
Mark K. Hamm - Cullman AL, US
William Clinton Osteen - Hartselle AL, US
Mark K. Hamm - Cullman AL, US
William Clinton Osteen - Hartselle AL, US
Assignee:
Tyco Values & Controls LP - Houston TX
International Classification:
G05D 11/00
US Classification:
13711526, 137 8701, 13711806, 251 77
Abstract:
A diaphragm controlled bypass valve includes a diaphragm valve portion and a needle valve portion. The diaphragm valve portion regulates pressurized gas supplied from a pump to determine whether or not to open or close a needle valve. The needle valve portion includes an inlet port, an outlet port and a flow pathway defined between the inlet and outlet ports. A needle pin is disposed within the flow pathway and is coupled to a diaphragm positioned within the diaphragm valve portion. When the diaphragm is displaced in response to changes in pressure, the needle valve pin is likewise displaced which opens and closes the flow pathway.
Pressure Regulator Having An Integral Pilot And Self-Relieving Mechanism
US Patent:
8627846, Jan 14, 2014
Filed:
Nov 5, 2010
Appl. No.:
12/940314
Inventors:
John R. Grenaway - Edwardsville IL, US
Mark K. Hamm - Cullman AL, US
Mark K. Hamm - Cullman AL, US
Assignee:
Pentair Valves & Controls US LP - Golden Valley MN
International Classification:
F16K 31/12
US Classification:
137491
Abstract:
A high flow pressure regulator valve is disclosed having an integral pilot valve. The disclosed valve includes a pressure regulating portion including inlet and outlet ports, a valve seat, valve disc and a spring for biasing the valve disc into engagement with the valve seat. The valve also includes a pilot valve portion positioned on the flow regulating portion. The pilot valve portion includes a pilot spring, a diaphragm and a pusher post. One end of the pusher post is positioned toward the diaphragm and a second end is disposed within an annulus region. The valve further includes a pressure path that enables selective fluid communication between the outlet port, the annulus, an inner chamber region disposed beneath the diaphragm, and an intermediate chamber disposed above the valve disc. Other embodiments are disclosed and claimed.
Low-Emission Nozzle And Receptacle Coupling For Cryogenic Fluid
US Patent:
2022038, Dec 1, 2022
Filed:
May 27, 2022
Appl. No.:
17/804484
Inventors:
- Elon NC, US
John Grenaway - Huntersville NC, US
John Grenaway - Huntersville NC, US
International Classification:
F16L 37/244
F17C 13/00
F17C 13/00
Abstract:
Methods and apparatus are disclosed for a low-emission nozzle and receptacle coupling for cryogenic fluid. An example nozzle includes a body defining a chamber through which cryogenic fluid is to flow. The body includes an outer shell that includes an outer shell surface. The nozzle includes a locking assembly configured to securely couple the nozzle to a receptacle. The locking assembly includes an inner sleeve fixedly coupled to the outer shell surface and an outer sleeve extending over and rotatably coupled to the inner sleeve. One or more locking teeth are fixedly coupled to the outer sleeve and configured to be slidably received by respective one or more coupling slots of the receptacle. The one or more locking teeth are configured to rotatably slide within the respective one or more coupling slots to couple the nozzle to the receptacle as the outer sleeve rotates relative to the inner sleeve.
Relief Valve With Directable Outlet
US Patent:
2015005, Mar 5, 2015
Filed:
Sep 3, 2014
Appl. No.:
14/476017
Inventors:
John R. Grenaway - Edwardsville IL, US
Mark K. Hamm - Cullman AL, US
John B. Miller - Arab AL, US
William C. Osteen - Hartselle AL, US
Mark K. Hamm - Cullman AL, US
John B. Miller - Arab AL, US
William C. Osteen - Hartselle AL, US
International Classification:
F16K 27/02
F16K 17/04
F16K 17/04
US Classification:
137538
Abstract:
A relief valve including a body defining an inlet. A valve closure element is disposed at least partially within the body and arranged to allow selective flow through the relief valve in response to a predetermined pressure. An outlet housing that is separate from and coupled to the inlet housing is rotatable with respect to the inlet housing. The outlet housing defines an outlet that is in selective communication with the inlet.
Pressure Regulator Having An Integral Pilot And Self-Relieving Machanism
US Patent:
2014010, Apr 17, 2014
Filed:
Dec 23, 2013
Appl. No.:
14/138595
Inventors:
John R. Grenaway - Edwardsville IL, US
Mark K. Hamm - Cullman AL, US
Mark K. Hamm - Cullman AL, US
International Classification:
G05D 16/00
US Classification:
137505
Abstract:
A high flow pressure regulator valve is disclosed having an integral pilot valve. The disclosed valve includes a pressure regulating portion including inlet and outlet ports, a valve seat, valve disc and a spring for biasing the valve disc into engagement with the valve seat. The valve also includes a pilot valve portion positioned on the flow regulating portion. The pilot valve portion includes a pilot spring, a diaphragm and a pusher post. One end of the pusher post is positioned toward the diaphragm and a second end is disposed within an annulus region. The valve further includes a pressure path that enables selective fluid communication between the outlet port, the annulus, an inner chamber region disposed beneath the diaphragm, and an intermediate chamber disposed above the valve disc. Other embodiments are disclosed and claimed
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