Wallace I Stenzel

US Patent:

45503141, Oct 29, 1985

Filed:

Sep 7, 1982

Appl. No.:

6/415584

Inventors:

Wallace I. Stenzel - Thiensville WI
Kenneth R. Payne - Menomonee Falls WI

Assignee:

Waukee Engineering Company - Milwaukee WI

International Classification:

G08B 2100

US Classification:

340623

Abstract:

A gas flowmeter includes an oil-filled tube coupled to the gas flow line and a float lifted by gas flow. An LED lamp transmitter and a photoresistor receiver are coupled to a guard telescoped over the tube. The LED lamp has an integrated concentrating lens to define a concentrated sharp beam passing through a small barrel located in a guard slot for close coupling the light beam to the tube. The photoresistor receiver includes a similar barrel in an opposite slot in accurate alignment with the transmitter barrel. The receiver includes a photoresistor connected in a dividing network to define an input node to a regenerative "Schmitt" switch which actuates a solid state control relay to indicate a limit position of the float. A mounting plate has a correspondingly mounted light transmitter housing and photoresistor housing. The housings are formed from the same casting.

US Patent:

47746769, Sep 27, 1988

Filed:

Nov 7, 1984

Appl. No.:

6/669090

Inventors:

Wallace I. Stenzel - Thiensville WI
Kenneth R. Payne - Menomonee Falls WI

Assignee:

Waukee Engineering Company - Milwaukee WI

International Classification:

G01F 1245
G01F 2350
G01N 1506

US Classification:

364510

Abstract:

A linear digital flow meter includes a float in a passageway as is located positioned with the rate of flow. A sight glass tube is secured to the end of the unit and a rod connects the float to a tube. A generally H-shaped housing has the tube located in an opening in the cross bar with a light chamber to one side and a detector chamber to the opposite. A bank of LEDs in the light chamber is aligned with a transmitting slot and a bank of phototransistors is aligned with a receiving slot in the detector chamber. A shadow mask between the phototransistors and the slot concentrate the light so the phototransistor receive light according to the length of rod in the sight glass. A bottom connector chamber is in the bottom of the housing with L-shaped passages to the light and detector chambers with the appropriate leads to the lamp and detector chambers. A multiplexer connects the phototransistors to a microprocessor which stores and processes the signal. The microprocessor has a programmable range selection unit, a limit control unit and an output circuit establishing a voltage output signal unit and a current output signal unit to produce voltage and current signals proportional to the flow rate.

US Patent:

42870631, Sep 1, 1981

Filed:

Oct 29, 1979

Appl. No.:

6/088832

Inventors:

Wallace I. Stenzel - Thiensville WI

Assignee:

Waukee Engineering Company Inc. - Milwaukee WI

International Classification:

B01D 3306

US Classification:

210402

Abstract:

An improved apparatus for separating liquids and particularly separating oil from the surface of water contained in a tank. The apparatus includes a partially submerged drum mounted to rotate in the water tank and a film of oil and water is picked up on the surface of the rotating drum and removed by a doctor blade. The removed oil and water mixture flows through a trough and is discharged into the upper end portion of a vertical tube. The lower open end of the tube is located beneath the level of the water and the tube has an overflow outlet located at a higher level than the level of the water. The oil, having a lesser density than the water, will collect in the upper end in the tube and the level of oil will rise and is discharged through the overflow outlet, thereby providing a full separation of the oil from the water. To periodically clean oil sludge from the doctor blade and trough, an air operated aspirating unit is utilized to draw water from the tank and discharge the water in the form of a jet along the doctor blade and within the trough.

US Patent:

40159531, Apr 5, 1977

Filed:

Jul 7, 1975

Appl. No.:

5/593781

Inventors:

Wallace I. Stenzel - Thiensville WI
Frederick W. Kufrin - Janesville WI
Donald J. Allen - Fort Atkinson WI

Assignee:

Waukee Engineering Co. - Milwaukee WI

International Classification:

F23D 1346

US Classification:

48192

Abstract:

A firecheck to be connected to a combustible gas line and including a casing having a gas inlet, a gas outlet and an access opening. A cover plate removably encloses the access opening and a burner screen is located within the casing between the inlet and the outlet and is disposed in communication with the access opening. A control valve is disposed within the casing for controlling the flow of gas through the casing and is movable between an open position and a closed position. The valve is moved to the open position through a manually operated mechanism and is locked in the open position. On release of the locking mechanism the valve is biased to the closed position. Removal of the cover plate from the casing acts to release the locking mechanism to thereby enable the biasing means to move the valve to the closed position.