1
Farhad Nourbakhsh: Switching power supply with electronic isolation. Tescom Corporation, Palmatier Sjoquist & Helget, September 6, 1994: US05345376 (41 worldwide citation)

A switching power supply that converts an input AC or DC voltage to a regulated output DC voltage while offering electrical isolation between the input and output stages through use of solid state switches and charge storage devices in place of isolation transformer used in traditional systems. The ...


2
Farhad Nourbakhsh, Corwin L Namken: Plasma torch head, body, handle and control circuitry. Tescom Corporation, Clayton R Johnson, August 13, 1991: US05039837 (31 worldwide citation)

Disclosed herein a plasma torch that includes a torch body that at its upstream portion is adapted for being removably retained in a plurality of laterally adjusted positions by one lateral end position of a handle. The opposite end of the torch body is joined to the head to extend at an obtuse angl ...


3
Dale C Arstein, Lee R Rensberger: Gas valve. Tescom Corporation, Palmatier Sjoquist & Helget, May 9, 1995: US05413311 (30 worldwide citation)

A gas flow valve having an internal valve chamber with an inlet and outlet passage, and a movable metallic diaphragm in the chamber, the diaphragm bonded to a valve stem projecting outside of the chamber. The diaphragm has a Teflon film coating which is engageable against at least one of the inlet a ...


4
Daryll D Patterson: Pressure reducing regulator. Tescom Corporation, Clayton R Johnson, August 10, 1993: US05234026 (20 worldwide citation)

The pressure reducing regulator includes a balanced valve arrangement, a sensor being resiliently urged toward a valve seat. A sensor insert is mounted by the sensor for axial movement therewith, the insert mounting the valve stem for movement therewtih between an open and a closed position and limi ...


5
Fleischhacker Joseph F, Hruby Thomas W: Pressure regulator assembly. Tescom Corporation, Dugger Johnson & Westman, May 28, 1974: US3812877 (19 worldwide citation)

A pressure regulator assembly that includes a valve body, a bonnet mounted on the body and in combination with the body mounting a flexible diaphragm to separate the body control chamber and bonnet chamber, a nozzle and back cap mounted by the body to provide an inlet chamber, a valve stem assembly ...


6
Daryll D Patterson: Self-venting pressure reducing regulator. Tescom Corporation, Clayton R Johnson, September 15, 1987: US04693267 (18 worldwide citation)

A pressure regulator that includes a regulator body having a main bore that has a plurality of progressively reduced diameter bore portions in one axial direction, inlet and outlet ports and a vent passage opening to the main bore, a valve assembly resiliently retained in a closed condition to block ...


7
Farhad Nourbakhsh: Plasma pilot arc ignition system. Tescom Corporation, Clayton R Johnson, August 10, 1993: US05235162 (17 worldwide citation)

Upon energization of the control unit, it operates a switch to supply air in a gap between the cutting nozzle and the electrode of a plasma torch, a second switch to apply a high voltage from a high voltage DC (direct current) power supply unit at the gap to initiate a starting arc, a third switch t ...


8
Fleischhacker Joseph F, Hruby Thomas W: Pressure regulator assembly. Tescom Corporation, Dugger Johnson & Westman, September 23, 1975: US3906982 (12 worldwide citation)

A pressure regulator assembly that includes a valve body, a bonnet mounted on the body and in combination with the body mounting a flexible diaphragm to separate the body control chamber and bonnet chamber, a nozzle and back cap mounted by the body to provide an inlet chamber, a valve stem assembly ...


9
Hamernik Edward L, Kawamoto Frank T: Torch apparatus. Tescom Corporation, February 22, 1972: US3643871 (11 worldwide citation)

Torch apparatus that includes a torch head having a torch bore, a mixer in the torch bore, a torch tip, a collar on the torch tip and a head nut threaded on the torch head to, through the collar, retain the seating surface of the torch tip against the seating surface of the mixer. A mixer cutting ox ...


10
Edward L Hamernik, Daryll D Patterson: Fluid actuated valve apparatus. Tescom Corporation, Clayton R Johnson, October 20, 1987: US04700735 (10 worldwide citation)

A bonnet is mounted on an insert support and connected to a valve body to retain a diaphragm in fluid sealing relationship between the body and insert support. The insert support is rotatable relative to the housing of a fluid actuator while being retained in a fixed axial position relative to the h ...