Louis J Jannotta, Age 727940 Teton Rd, Orland Park, IL 60462

6898744, May 24, 2005

Nov 1, 2001

10/001312

Louis J. Jannotta - Orland Park IL, US

H03M013/00
G06F011/00
G11B007/00

714709, 714819, 369 5335

Methods for monitoring the accuracy of positional measurements by encoders that translate positional information into signals include determining the difference between two signals generated by the encoder and comparing the difference to a threshold value. Differences greater than the threshold indicate an error in measurement by the encoders. The methods may be practiced using one or more computer programs. The methods may be practiced with any encoder, including absolute and incremental encoders. Encoders include components to implement the methods.

6899129, May 31, 2005

Jan 29, 2002

10/059699

Louis J. Jannotta - Orland Park IL, US

F16K037/00

137557, 137553, 137559, 251 63, 251144

A shutoff valve includes a positive position indicator for indicating the position of a piston in the valve. The valve position indicator is operably connected to a piston within the valve so that movement of the piston causes a corresponding movement of the valve position indicator. The shutoff valve may also include one or more springs acting on the piston to close the valve. Each spring is independently capable of closing the valve.

7725273, May 25, 2010

Nov 16, 2007

11/985650

Louis J. Jannotta - Orland Park IL, US

G01F 23/00

702 55, 702 45, 702182, 702188, 702189, 73291, 73290 V, 73290 R, 73313, 73314, 73317

An apparatus for monitoring a height of liquid in a liquid storage tank is provided, the apparatus includes a first rotatable element rotatable in response to a change of a liquid level in a liquid storage tank and including a first magnetic component having a first magnetic field, and a second rotatable element rotatable in response to the rotation of the first rotatable element and including a second magnetic component having a second magnetic field. The apparatus further includes a sensor assembly which includes a first sensor component located within range of the first magnetic field and structured to be effective in providing a first signal indicative of a position of the first magnetic component, and a second sensor component located within range of the second magnetic field and structured to be effective in providing a second signal indicative of a position of the second magnetic component. The apparatus further includes a data transmitter/microprocessor assembly in electronic communication with the sensor assembly and structured to be effective in receiving the first and second signals from the first and second sensor components, respectively, and processing said first and second signals into data representing a height of liquid in a liquid storage tank.

8069722, Dec 6, 2011

May 28, 2009

12/455277

Louis J. Jannotta - Orland Park IL, US
Jeffrey D. Clay - Oakbrook IL, US

L&J Engineering, Inc. - Hillside IL

G01F 23/00

73290V

A tank gage assembly is provided including a tank gage antenna operatively couplable to a tank gage; a cover coupled to the tank gage antenna; a gage hatch flange including an opening and being coupled to the cover and structured to be coupled to a tank; and a hinge having a first hinge member secured to the gage hatch flange, and a second hinge member secured to the cover, the hinge being movable between a first position in which the cover is spaced apart from the opening and a second position in which the antenna and cover substantially cover the opening.

5705733, Jan 6, 1998

Jan 23, 1996

8/589966

Louis J. Jannotta - Orland Park IL

G01F 2332
G01F 2500

73 1H

Apparatus for monitoring the height of the liquid in a liquid-containing tank equipped with a height gage including an adjusting disc coupled to the gage shaft, an increment wheel coupled to the adjusting disc and being rotatable in response to rotation of the gage shaft, and a coupling member secured to the increment wheel and the shaft of an encoder assembly. The coupling member is effective to transmit liquid height information from the increment wheel to the encoder assembly. Methods for calibrating such apparatus are provided.

5104056, Apr 14, 1992

Jun 21, 1991

7/721919

Louis J. Jannotta - Orland Park IL
Raymond C. Reip - Indian Head Park IL

L&J Engineering Inc. - Crestwood IL

B65H 7534
G01B 310

242167

A motor assembly useful for rotating a drum comprising: a hub adapted to be removably secured to the drum so that the drum rotates in response to rotation of the hub, the hub including a first outer surface adapted to face toward the drum and a second outer surface adapted to face away from the drum; a motor comprising a spring element having a first end adapted to be secured to the hub and being in aligned position relative to the hub to be wound around the hub between the first and second outer surfaces to apply a force to the hub which force urges the hub to rotate in one direction; and a housing adapted to hold the hub and the motor in aligned position substantially without frictional contact with the first and second outer surfaces of the hub.

5048560, Sep 17, 1991

Aug 16, 1990

7/568474

Louis J. Jannotta - Orland Park IL
Raymond G. Reip - Indian Head Park IL

L&J Engineering Inc. - Crestwood IL

F16K 17194

1374938

A valve assembly, particularly a breather valve assembly for fluid storage tanks, is described. This assembly comprises a valve housing including a fluid conduit and a valve seat defining a fluid outlet of the fluid conduit, and a pressure pallet sized and adapted to move away from the valve seat in response to an increased fluid pressure in the fluid conduit. A seal is provided and acts to effectively seal the fluid outlet against fluid flow from said fluid conduit when the seal is in contact with the valve seat. The seal which includes first and second flexible seal elements which are unsecured to the pressure pallet at or near their respective outer peripheries, is structured so that fluid from the fluid conduit is in the space between the first and second seal elements when the seal means is in contact with the valve seat.

4275382, Jun 23, 1981

Jul 18, 1979

6/058508

Louis J. Jannotta - Lansing IL

H04Q 100
G06F 1500
G05B 1500
G05D 900

340151

Apparatus for determining the level of liquid in a vessel, e. g. , storage tank comprises a plurality of indicators at varying heights along the vessel acting to indicate the presence of the liquid level at a given height; a controller to receive signals from the indicators and translate such signals into liquid level height; a memory device to store information from the controller for future use; and a display system to receive signals from the controller and provide a visual display of the liquid level height in the vessel. Preferably, the apparatus also includes a central monitoring station where signals from a plurality of controllers are received so that the liquid levels in a plurality of vessels can be displayed. In additional preferred embodiments, the controller can collect information regarding vessel liquid temperature and/or the status of pumps, valves and the like which can change the liquid level in the vessel. A further embodiment is disclosed in which the controller sends out signals to alter the status of one or more of such pumps, valves and the like.