Thomas R Duksa

US Patent:

54252717, Jun 20, 1995

Filed:

Oct 28, 1993

Appl. No.:

8/145785

Inventors:

Thomas Duksa - Wolcott CT

International Classification:

G01F 2338

US Classification:

73317

Abstract:

A liquid level indicator has a housing which defines a pair of fluidly isolated chambers. A flag including a first magnet is pivotally mounted in a forwardly disposed of the chambers and a lens is mounted in the front of the forwardly disposed chamber. An arm is pivotally mounted in and extends out of the rearly disposed of the chambers, a second magnet is attached to the end of the arm which is disposed in the rearwardly disposed arm, and a float is attached to the other end of the arm. The first and second magnets are permanently magnetically coupled so that movement of the float will cause arcuate movement of the second magnet which is translated to rotational movement of the flag and its integral first magnet.

US Patent:

51176939, Jun 2, 1992

Filed:

Jun 13, 1991

Appl. No.:

7/714696

Inventors:

Thomas R. Duksa - Wolcott CT

International Classification:

G01F 2338
H01H 3518
H01H 3602

US Classification:

73317

Abstract:

A liquid level detector includes a pivotally mounted bent arm which supports, adjacent opposite ends thereof, a float and a component of a signal generator. As the level of a fluid contacted by the float rises and falls, the opposite end of the arm will move into proximity to or away from a support. The second component of the signal generator is mounted on the support and a signal indicative of the juxtapositioning of the second end of the arm to the float will be generated.

US Patent:

56612389, Aug 26, 1997

Filed:

May 20, 1996

Appl. No.:

8/650333

Inventors:

Thomas Duksa - Wolcott CT

International Classification:

G01F 2338

US Classification:

73317

Abstract:

A bistable liquid level indicator has a rotatable, indicia bearing member which is balanced to assume a first position under the influence of gravity. A rotatable fluid responsive actuator is magnetically coupled to the indicia bearing member such that a magnetic force, which varies as a function of the fluid induced position of the actuator, is imposed on the indicia bearing member. At a critical level of the fluid, the imposed magnetic force overcomes the gravitational force and the indicia bearing member moves to a second position.

US Patent:

51626241, Nov 10, 1992

Filed:

Oct 11, 1991

Appl. No.:

7/776597

Inventors:

Thomas R. Duksa - Wolcott CT

International Classification:

H01H 3538

US Classification:

200 819M

Abstract:

A fluid flow rate responsive signal generator includes moveable members which, in part, define a pair of paths for the flow of fluid. A first of the moveable members is a shuttle which supports a magnetic field generator, the shuttle being displaced toward a proximity switch in response to fluid flow. The second moveable member functions as a valve which, when in the open condition, allows flow to bypass the flow path in which the shuttle is disposed. The bypass flow path control valve member will be automatically positioned as a function of the dynamic flow conditions and may be either normally closed or prepositioned to define a minimum bypass flow path area.

US Patent:

20180348028, Dec 6, 2018

Filed:

May 11, 2018

Appl. No.:

15/977337

Inventors:

- Southington CT, US
Thomas R. Duksa - Harwinton CT, US

International Classification:

G01F 1/20
G01F 23/36
H01H 35/18

Abstract:

A flow or level switch comprises a sensor/switch assembly which is adapted for mounting in connection with either a fitting having an offset defining a channel to detect fluid flow through an orifice into the channel or a tank having a ball float to detect the level of the ball float in the tank. A switch module comprises a control rod which reciprocates and activates a switch unit having a bi-positionable contact member. A follower, which may be in the form of an axle with an angularly fixed projection, engages the control rod to cause the contact member to move.

US Patent:

20180261411, Sep 13, 2018

Filed:

Jan 15, 2018

Appl. No.:

15/871346

Inventors:

Thomas R. Duksa - Harwinton CT, US

International Classification:

H01H 35/40
G01F 1/36
G01F 1/20

Abstract:

A flow sensor module employs a fitting which defines an offset sensor bypass which is disposed at an acute angle to a linear flow path through the fitting. A dynamic pressure or flow sensor is disposed in the sensor bypass. A bonnet assembly is removably mounted to the fitting and mounts the sensor and fluidly seals the sensor in the fitting. A solid state controller has a panel which indicates a number of operational conditions including whether there is fluid flow through the flow system. The panel may have a chemical feed pump default indicator, a control valve indicator and an air trap device indicator and, in one embodiment, a manual override switch to turn on a feed pump, a control valve, an air trap device or an electrically operated device.

US Patent:

20170276251, Sep 28, 2017

Filed:

Mar 16, 2017

Appl. No.:

15/460644

Inventors:

Thomas R. Duksa - Harwinton CT, US

International Classification:

F16K 1/12
F16K 31/122
F16K 31/06
F16K 27/02

Abstract:

An orifice module for a flow switch system has a cylindrical body which is symmetric about a central axis which defines a metering orifice. An axial central hub holds the stem. The hub connects to the cylindrical body by at least three support spokes which forms a plurality of flow channels angularly disposed about the central axis. The module interacts with the flow switch to enhance the function of the flow switch and also reduces turbulence in the fluid flow system.