Ajit S Gill
Land Surveyors in Salt Lake City, UT

6834675, Dec 28, 2004

Aug 6, 2003

10/636106

Ajit Singh Gill - Salt Lake City UT 84119

F16K 712

13762532, 251287

An integrated multipurpose valve is a valve in which more than one type of valves are integrated in a cage held permanently in the pipeline, and the valve as a while can perform multiple functions which allow it to be a shut off valve, a pressure reducing valve, a pressure relief valve and a check valve, and a multi-diversion valve which can divert fluid flow in several directions. The inner components of the valve can be inspected and replaced without removing the valve as a whole from the line.

6186560, Feb 13, 2001

Sep 3, 1998

9/290627

Ajit Singh Gill - Salt Lake City UT

F16L 5500

285305

A single bolt coupling for the attachment to the end portion of a pipe having a circumferential groove or shoulder in such end portion includes a coupling which receives the end portion of the pipe therein and a circumferential open ended resilient ring associated with the coupling body which expands to allow passage of the groove into or out of the coupling and contracts to hold the groove in the coupling. The coupling is provided with a screw vise mechanism to expand the ring so that a pipe end can easily be inserted into the coupling. After insertion, the ring is allowed to contract to hold the pipe in the coupling. The coupling with its ring can also couple plain ended pipes, the ring contracting tightly around the pipe to hold it in place by friction between the pipe and ring. The coupling may have a ring at both ends to similarly receive and hold two pipes in end-to-end relationship, or may have a different type of connector, such as threads, a flange, or a set of partially rotatable cammed jaw members at the other end, or a plain opening to make a bell type joint. The coupling may join pipes, act as an expansion joint, join various fittings to pipes, or may itself form various fittings such as valves.

5387017, Feb 7, 1995

May 14, 1993

8/062240

Ajit S. Gill - Salt Lake City UT

F16L 2106

285322

A coupling for attachment to the end portion of a pipe having a circumferential shoulder in such end portion includes a coupling body which receives the end portion of the pipe therein and a set of jaw members which, after the end portion of the pipe is received in the coupling body, move to a closed position to engage the shoulder so that the coupling is locked onto the end of the pipe and the pipe cannot be pulled from the coupling because the jaw members acting against the shoulder prevent such movement. The coupling can be provided with sets of jaw members at each end to couple together two pipes with end portion shoulders or have jaw members at one end and threads, flanges, or other types of connectors at the other end. Valves or other fittings may be incorporated into the coupling between the ends of pipes being coupled.

6921115, Jul 26, 2005

May 28, 2003

10/446302

Ajit Singh Gill - Salt Lake City UT, US

F16L017/00

285365, 285408, 285110, 2852881

A coupling for joining two pipes in end-to-end relationship includes flanges which are sealably secured to end sections of pipes to be connected. The flanges form front inclined faces and adjacent front flanges that are slidably received within opposite end openings of a cylindrical coupling. A groove or shoulder is formed at the rear end of the front flanges that cooperate with jaws extending from the ends of the cylindrical coupling to secure the received pipe end portions in the cylindrical coupling to thereby join the pipes together. One or more gaskets fit in the cylindrical coupling between the ends thereof with gasket arms that abut against the inclined surface so that fluid pressure in the pipes force the gasket arms against the inclined faces to provide a seal between the joined pipes. A stop may be provided to limit the sliding travel of the cylindrical coupling with respect to the flanges.

7850213, Dec 14, 2010

Jun 25, 2007

11/821685

Ajit Singh Gill - Salt Lake City UT, US

F16L 21/00

285417, 285383

A coupling to connect two pipes, and to connect pipe fittings and valves with pipes, which includes arcuates provided with inner flanges in their end portions, where said arcuates are positioned around crossable inner means, which means can also be used by different types of cylindrical couplings which couplings require grooves around cylindrical rings mounted around the end portions of pipes; where crossable inner means is comprised of a centrally located partitioner ring located between two pipes, which ring separates two gaskets provided with backup rings which backup rings are provided with radial circumferential grooves for the attachment of said arcuates bridging across said inner means. Said backup rings are attachable to the shoulders constructed around the end portions of two opposite pipes.

6926251, Aug 9, 2005

Oct 12, 2004

10/962968

Ajit Singh Gill - Salt Lake City UT, US

F16K031/00

251291, 251344

A free floating diaphragm flow control valve includes concentric inner and outer bodies, where a partition plate divides the inner body into two equal inlet and outlet chambers. A cylindrical cavity, concentric with the inner and outer cylindrical bodies, provides space for a sheet diaphragm looping around a seat provided by the inner cylindrical body. The doubled up ends of the sheet diaphragm are held together by a tie assembly which has an integral bolt stem held that is shared with an actuator, which actuator, working in tandem with the pipe line's pressurized fluid around the diaphragm, can actuate the diaphragm's tied up ends, to open or close the diaphragm around its seat to control the fluid flow through the valve.

8474880, Jul 2, 2013

Jul 8, 2011

13/179450

Ajit Singh Gill - Salt Lake City UT, US

F16L 23/00

285368, 285412

Pipe ends having radial flanges may be easily attached by an arcuate snap coupler having a channel for receiving portions of spaced face to face flanges on respective pipe end portions to be connected. The flanges may be formed directly on the pipe end portions, or may be formed by coupler body pieces attached to the pipe end portions. The arcuate snap coupler includes an open channel portion having two parallel side walls spaced apart a distance equal to the maximum desired distance over the face to face flanges when the two pipe end portions are joined together, a first hinge portion for rotatable attachment to a first fastener bolt extending between the flanges, and a second hinge portion for attachment to a second fastener bolt extending between the flanges after rotation of the coupler to receive the flange portions in the channel.

5868441, Feb 9, 1999

Nov 13, 1996

8/732503

Ajit Singh Gill - Salt Lake City UT

F16L 2106

285322

A coupling for attachment to the end portion of a pipe (1) having circumferentially directed shoulder (3a) in such end portion includes a coupling body (6) which receives the end portion of the pipe (1) therein and a set of jaw members (24E-27E) which, after the end portion of the pipe (1) is received in the coupling body (6), move to a closed position to engage the shoulder (3a) so that the coupling is locked onto the end of the pipe (1) and the pipe cannot be pulled from the coupling because the jaw members (24E-27E) acting against the shoulder (3a) prevent such movement. The coupling can be provided with sets of jaw members (24E-27E) at each end to couple together two pipes (1, 2) each with end portion shoulders (3a, 4a) or have jaw members at one end and conventional connectors such as threads (64, FIG. 6), ridged inserts (121, FIG. 12), flanges, or other types of connectors at the other end.

5794988, Aug 18, 1998

Mar 31, 1997

8/829209

Ajit Singh Gill - Salt Lake City UT

F16L 5500

285305

A coupling for attachment to the end portion of a pipe having a circumferential groove includes a coupling body which receives the end portion of the pipe therein and a circumferential open ended resilient ring held by the coupling body. The ring is expanded by the larger outer diameter of the pipe as the end portion of the pipe is pushed into the coupling body but contracts back to its original diameter into the groove. With the ring in the groove, the coupling is locked to the end of the pipe and the pipe cannot be pulled from the coupling. The coupling is also provided with means to expand the ring mechanically so that the pipe can be released from the coupling or so that, while the pipe is being received by the coupling, the pipe does not encounter the ring until the ring is mounted into the groove of the pipe. The coupling can be provided with rings at each end to couple together two pipes end-to-end that may or may not have end portion grooves, or it can have a ring at one end and threads, flanges, a set of partially rotatable cammed jaw members, or other connector at the other end. The coupling can be used for pipe fittings, hoses, valves, pressure vessels, structural pipe, and electrical conduits.

2005005, Mar 10, 2005

Sep 17, 2003

10/665089

Ajit Gill - Salt Lake City UT, US

F16L037/00

285314000, 285320000

A coupling to connect pipe, including lengths of pipe, valves, hoses, and pipe and hose fittings, includes a body to closely receive the end portion of the pipe to be coupled. The coupling may include a set of first class lever jaw members each having a power arm and a weight arm mounted to the coupling body to establish a fulcrum for rotation of each lever jaw member about the fulcrum between an engaged position and a disengaged position with respect to the pipe end portion when received in the coupling body. Additionally or alternately, the coupling may include jaw members adapted to slide along an inner end taper in the coupling body so that linear movement of the jaw members toward the end of the inner end taper adjacent an end of the coupling body causes movement of the jaw members radially inwardly of the coupling body against the end portion of the pipe when received in the coupling body