1
Hoppesch Joseph P, Schubert Stuart A: Portable breath tester. Borg Warner Corporation, Jennings Jr James J, April 15, 1975: US3877291 (45 worldwide citation)

A breath tester, in two embodiments, employing an alcohol detecting element (e.g. a zinc oxide semiconductor element) which, prior to use, is purged by pumping ambient air across it and maintaining it at a higher than normal operating temperature. In use, after a purging period the air pumping is st ...


2
Burroughs James E: Mouthpiece for breath testing devices. Borg Warner Corporation, Jennings Jr James J, April 29, 1975: US3880591 (24 worldwide citation)

A mouthpiece comprises a breath-receiving cup member mounted on a hollow stem member which provides an outlet of the mouthpiece and which is adapted for connection to the inlet of a breath testing device. The stem member has an inlet portion extending inwardly of the cup member and having a closed e ...


3
Padgitt Kenneth W, Ward Donald H: Method and apparatus for obtaining accurate readout of breath testers. Borg Warner Corporation, Jennings Jr James J, October 15, 1974: US3842345 (17 worldwide citation)

An improved readout apparatus and method for use with a testing system such as that shown in U.S. Pat. application Ser. No. 136,778, now Pat. No. 3,764,270 is disclosed employing a holding amplifier, null detector and a potentiometer coupled to a turns counter. The output of an alcohol breath testin ...


4
Burroughs James E, Seibert John W, Hoppesch Joseph P: Quiescent breath testing system. Borg Warner Corporation, Jennings Jr James J, December 17, 1974: US3854320 (12 worldwide citation)

A breath tester system and control system therefor are disclosed. The tester includes a chamber in which a breath sample is stored, a detector unit positioned to test breath therein and means for shielding the detector unit from the chamber while breath is flowing into the chamber and for unshieldin ...


5
Syria Ronald L: Analyzer for control system which regulates vehicle braking. Borg Warner Corporation, Jennings Jr James J, October 15, 1974: US3841712 (11 worldwide citation)

A regulated braking arrangement includes left and right sensors to provide wheel velocity signals, and a solenoid for dumping brake line pressure to prevent wheel lock-up. This arrangement is governed by a control system. An analyzer for checking the control system includes a sensor resistance test ...


6
Syria Ronald L: Control system regulated braking arrangement. Borg Warner Corporation, Jennings Jr James J, October 22, 1974: US3843207 (7 worldwide citation)

A regulated braking system for a vehicle with a plurality of wheels includes a fluid under pressure for selectively actuating the vehicle brakes when a brake pedal or other actuator is displaced to energize the system. Sensors are positioned adjacent different wheels to provide wheel velocity indica ...


7
Hoppesch Joseph P, Padgitt Kenneth W, Ward Donald H: Control system for quiescent breath tester. Borg Warner Corporation, Jennings Jr James J, January 7, 1975: US3858434 (7 worldwide citation)

A control system for a breath tester is disclosed. The tester includes a chamber in which a breath sample is stored, a detector unit positioned to test breath therein and means for shielding the detector unit from the chamber while breath is flowing into the chamber and for unshielding the detector ...


8
Hoppesch Joseph P, Ward Donald H, Tomashek James R: Null memory system for a gas analysis system. Borg Warner Corporation, Jennings Jr James J, June 3, 1975: US3886786 (6 worldwide citation)

A null memory system is provided for gas testing systems of the type that produce a d.c. signal whose maximum amplitude is indicative of the alcohol concentration of a sample in which an initial, just prior to test, output of the gas detector is automatically taken and that d.c. signal stored in a h ...


9
Hoppesch Joseph P, Ward Donald H, Tomashek James R: Breath tester null memory system. Borg Warner Corporation, Jennings Jr James J, June 3, 1975: US3886929 (6 worldwide citation)

A breath alcohol concentration detecting system includes an alcohol detector having a bridge circuit. Before testing a gas sample from a human subject, the system is cycled to provide a reference signal which is stored to indicate the imbalance initially present in the detector bridge circuit. The t ...


10
Ward Donald H: System for production of recording. Borg Warner Corporation, Jennings Jr James J, August 20, 1974: US3831190 (4 worldwide citation)

A system for the production of a recording of a succession of audio messages each of a desired maximum time length and proceeded by an indexing signal. The system includes station means for producing indexing signals and audio messages and judging station means for producing and not producing an era ...