John M Stark

US Patent:

20120313328, Dec 13, 2012

Filed:

Jun 8, 2012

Appl. No.:

13/492143

Inventors:

Richard M. Larson - Des Plaines IL, US
David C. Rupp - Grayslake IL, US
Reynaldo Fernandez - Chicago IL, US
John Stark - Hanover Park IL, US
Gerald A. Greca - Carleton MI, US

International Classification:

F16J 15/32

US Classification:

277549

Abstract:

A shaft seal assembly for establishing a liquid-tight seal between a steering knuckle and an axle shaft is provided. The shaft seal assembly includes an outer case and a first elastomeric member attached to one another. The elastomeric member has a castellated feature including a plurality of projections extending in a radially outward direction and separated from one another by a plurality of grooves. When the shaft seal assembly is installed in the steering knuckle, a cavity is presented between the steering knuckle and the first elastomeric member. Together, the grooves and cavity allow air to flow from a hub on one side of the seal assembly to a vacuum port in the steering knuckle. The cavity extends circumferentially around the seal assembly, and thus, air flow from the hub to the vacuum port is not dependent upon the orientation of the seal assembly relative to the steering knuckle.

US Patent:

20140017658, Jan 16, 2014

Filed:

Jul 10, 2012

Appl. No.:

13/545060

Inventors:

Christopher P. STEINMAN - Sandy UT, US
Jeffrey S. LOUIS - Akron OH, US
Rick W. WALKER - Stow OH, US
Evan D. SHAPIRO - Chicago IL, US
Aaron R. FERBER - Chicago IL, US
Rodney H. MONSON - Waukegan IL, US
John STARK - Bartlett IL, US
Ross LOCKWOOD - Chicago IL, US

Assignee:

LIFELINE SCIENTIFIC, INC. - Itasca IL

International Classification:

A01N 1/02

US Classification:

435 12, 4352841

Abstract:

An apparatus for separating gas bubbles that may be entrained in perfusate flow prevents such bubbles from continuing downstream and entering an organ or tissue. The apparatus may include a chamber having a top wall, a bottom wall and side walls. The chamber may include an inlet configured to allow at least one of gas and liquid to enter the chamber, an air opening configured to allow at least gas to exit the chamber and a first liquid opening configured to allow at least liquid to exit the chamber. The apparatus may function as an accumulator that reduces or eliminates pulsatility of the liquid flow and pressure. The apparatus may include a minimum volume of gas, initially or through the accumulation of gas, such that flow and pressure fluctuations in the liquid are dampened or eliminated. The apparatus may include a sampling port in a wall of the chamber.

US Patent:

20140017663, Jan 16, 2014

Filed:

Jul 10, 2012

Appl. No.:

13/545442

Inventors:

Christopher P. STEINMAN - Sandy UT, US
John STARK - Bartlett IL, US
Joel C. HAGAN - Batavia IL, US
Aaron R. FERBER - Chicago IL, US
Rodney H. MONSON - Waukegan IL, US
Evan D. SHAPIRO - Chicago IL, US

Assignee:

LIFELINE SCIENTIFIC, INC. - Itasca IL

International Classification:

A01N 1/02

US Classification:

435 12, 4352841

Abstract:

An apparatus for perfusing an organ or tissue includes a perfusion circuit configured to perfuse the organ or tissue; at least one shock and/or tilt detector such as an accelerometer; and a controller. The controller may be configured to control perfusion based upon a signal received from the accelerometer, which may include stopping and/or starting the perfusion based upon the signal. The controller may also or alternatively sense and/or record shocks experienced by the apparatus.

US Patent:

20140017664, Jan 16, 2014

Filed:

Jul 10, 2012

Appl. No.:

13/545473

Inventors:

David Kravitz - Barrington Hills IL, US
Christopher P. Steinman - Sandy UT, US
David Pettinato - Schaumburg IL, US
Richard K. Buck - Crystal Lake IL, US
John Stark - Bartlett IL, US
Robert J. Allen - Crystal Lake IL, US

Assignee:

LIFELINE SCIENTIFIC, INC. - Itasca IL

International Classification:

A01N 1/02

US Classification:

435 12, 4352841

Abstract:

A temperature sensor for monitoring an organ or tissue is configured to measure a temperature inside of a container configured to contain the organ or tissue. The temperature sensor is disposed exterior to the organ container and the temperature sensor is a non-contact temperature sensor. The temperature sensor may be part of an apparatus for perfusing, transporting, and/or storing an organ or tissue. A coolant container may have an aperture through which the temperature sensor measures a temperature of at least one of the organ or tissue or a perfusate fluid surrounding the organ or tissue. The temperature sensor is preferably an infrared temperature sensor. Multiple temperature sensors may be provided that measure the temperature organ or tissue or perfusate fluid surrounding the organ or tissue, for example in case one of the temperature sensors fails.

US Patent:

53884671, Feb 14, 1995

Filed:

Sep 9, 1992

Appl. No.:

7/942519

Inventors:

John Jereb - Dundee IL
John Stark - Bartlett IL
Gerald Proszek - Buffalo Grove IL

Assignee:

Tricor Systems, Inc. - Elgin IL

International Classification:

G01L 500

US Classification:

73862381

Abstract:

An apparatus and method for testing a switch having an actuating plunger, the switch undergoing a switch event in response to the actuation of the actuating plunger includes a switch nest and clamp assembly for holding the switch at a precise and predetermined location and a motor driven plunger actuator for applying force to the plunger thereby to actuate the switch. The switch test station further includes a pressure sensor coupled to the plunger actuator which measures the force being applied to the plunger during switch actuation. An electrical sensor couples to the switch nest and measures the electrical characteristics of the switch while a microcomputer responsive to the pressure sensor and the electrical sensor determines the mechanical displacement of the actuating plunger at a switch event.

US Patent:

40892263, May 16, 1978

Filed:

Mar 10, 1977

Appl. No.:

5/776273

Inventors:

Irvin R. Kraska - Lansing IL
John Stark - Bartlett IL
Wieslaw L. Lichodziejewski - Schaumburg IL

Assignee:

Gard, Inc. - Niles IL

International Classification:

G01N 2904

US Classification:

73614

Abstract:

A residual tire life prediction system uses a clock to trigger a bang generator that provides pulses of electrical energy to a pulse-echo transducer. The transducer converts pulses of electrical energy to pulses of ultrasonic vibration. The transducer is located on the tread of a steel belted tire to transmit pulses of ultrasonic energy into the tire and to receive reflected ultrasonic energy from plies of the tire casing. The transducer converts the reflected ultrasonic energy to provide bursts of electrical signals. The transducer is connected to a time varying gain control circuit that has its output connected via a full-wave rectifier to a first gate and to an input of a voltage level detector. The clock is also connected to a first time-delay circuit that is operative after a delay, subsequent to the pulse of the bang generator, to enable a second gate, connected to the output of the voltage level detector, that provides a signal, when it receives the signal based on the reflection from the outer steel belt, to a second time-delay circuit that provides an enable signal at its output after a predetermined delay for a predetermined period of time to the first gate to open it for passage of signals from the rectifier to a peak sensing device that provides an output signal to a digital panel meter for display of the value of the maximum amplitude passing through the first gate.

US Patent:

20150366183, Dec 24, 2015

Filed:

Aug 31, 2015

Appl. No.:

14/840392

Inventors:

- Itasca IL, US
John STARK - Bartlett IL, US
Joel C. HAGEN - Batavia IL, US
Aaron R. FERBER - Chicago IL, US
Rodney H. MONSON - Waukegan IL, US
Evan D. SHAPIRO - Chicago IL, US

International Classification:

A01N 1/02

Abstract:

A method of perfusing an organ or tissue includes perfusing the organ or tissue with a perfusion apparatus; detecting a condition representing at least one of an attitude of the perfusion apparatus or at least one shock experienced by the perfusion apparatus; and altering perfusion based upon the detected condition and/or recording the detected condition.

US Patent:

20150014942, Jan 15, 2015

Filed:

Jul 15, 2014

Appl. No.:

14/331972

Inventors:

- Southfield MI, US
Wilford Dean Virgin - Spring Grove IL, US
Steven Kueltzo - Aurora IL, US
Richard Larson - Des Plaines IL, US
John Stark - Hanover Park IL, US

International Classification:

F02F 11/00
F16J 15/08

US Classification:

277592, 277600

Abstract:

A multi-layer cylinder head gasket is provided. The cylinder head gasket includes a plurality of layers of material, each of the layers has a plurality of openings including at least one cylinder bore opening and at least one pushrod opening. Each of the layers has an edge which surrounds the at least one pushrod opening, and the pushrod openings of the layers are aligned axially with one another. An eyelet extends axially in each of the pushrod openings and covers the edges of the layers for protecting a pushrod extending through the respective pushrod opening. The eyelet is made of a material that is softer than the material of the plurality of layers.