HARRY E EMINGER
Engineers in Warwick, RI

5549138, Aug 27, 1996

Jan 10, 1995

8/370797

Harry E. Eminger - East Greenwich RI

Crosby Valve & Gage Company - Wrentham MA

F16K 1102

137876

A changeover valve system is provided that is adapted to be secured at one end to a riser from a pressurized piping system and at its opposite end to at least two pressure relieving devices. The changeover valve system includes a body and at least two elbows secured to the body to which are attached at least one of the pressure relieving devices. A partially spherical changeover member is provided within the body having at least one inlet port adapted to communicate with the riser and at least one and preferably two outlet ports adapted to alternately communicate with either of the pressure relieving devices. Transport means are provided for effecting rotation of the changeover member within the body to cause the changeover member to travel from one position wherein an outlet port is in communication with one of the pressure relieving devices to a second position wherein an outlet port is in communication with the other pressure relieving device. Locking means are provided for securing the changeover means in either of these two positions.

4844410, Jul 4, 1989

Jul 29, 1988

7/226424

Harry E. Eminger - East Greenwich RI

Crosby Valve & Gage - Wrentham MA

F16K 2500, F16K 4300

251159

There is provided a seat assembly adapted to be received in a spool bore of a valve having a fluid controlling member for controlling the flow of fluid through the valve, with the spool bore having a threaded interior portion. The seat assembly includes a first member having, located towards one end thereof, a grooved ring adapted to receive a tool, and a threaded exterior portion which is adapted to threadedly engage the interior threaded portion of the spool bore. The seat assembly further includes a second member adapted to be received in the first member, with the second member having a seat face adapted to contact the fluid controlling member. The first member threadedly moves the second member between a first position where the seat face contacts the fluid controlling member of the valve to a second position where the seat face is remote from the fluid controlling member of the valve. An alternative seat assembly is adapted to slide in a spool bore of a valve having a fluid controlling member for controlling the flow of fluid through the valve. This seat assembly includes a first member having, located towards one end thereof, a grooved ring adapted to receive a tool, and a threaded exterior portion and a second member having a threaded interior portion which is adapted to threadedly engage the threaded exterior portion of the first member to provide axial movement between the first and the second members.

4562860, Jan 7, 1986

Jul 6, 1983

6/511365

John F. Walter - North Kingstown RI
Bruce M. Costa - Little Compton RI
Harry E. Eminger - East Greenwich RI

Wilmington Trust Company - Wilmington DE

F16K 2500

1374546

A valve assembly is provided which is particularly suitable for operation and maintenance under extreme environments. It includes a valve body, a ball valve member rotatably mounted within the valve body, a bonnet removably secured to the valve body, and seat retaining asemblies removably secured to the bonnet. Upon removal of the bonnet, the valve member and all internals are also removed as a unit so that they may be serviced at a convenient location. The seat retaining assemblies may include inclined surfaces which seat against oppositely inclined surfaces defined within the valve body. An alignment plate is secured to the seat retaining assemblies to insure proper sealing.