Patents Assigned to Stewart-Warner Corporation
  • Patent number: 4154991
    Abstract: A rotary switch for high current applications that rapidly actuates a first set of contacts in one direction of rotation of the switch and actuates the first set and a second set of contacts upon rotation of the switch in the other direction. Each set of contacts has a follower roller that is moved by a rotary cam biased axially by a detent assembly that prevents rotation of the cam below a predetermined rotational force. A torsion spring assembly is provided for overcoming the detent assembly force and rapidly rotating the cam by the energy stored in the torsional spring.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: May 15, 1979
    Assignee: Stewart-Warner Corporation
    Inventors: Ronald J. Hickman, William R. Mayer
  • Patent number: 4148073
    Abstract: A high speed video display system suitable for use in operating video scoreboard displays is disclosed. Video data for a complete frame is converted from analogue to digital format and is directly loaded into a display memory (RAM). The digitized data is then outputted via a display interface to the display board which may consist of variable intensity devices, such as, incandescent light bulbs. The system, although under computer control, does not include the computer in the data handling path thereby permitting increased data handling rates. The video converter for the system includes circuits for changing the display format to produce "zoom" enlargements and wide screen displays suitable for racetrack applications.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: April 3, 1979
    Assignee: Stewart-Warner Corporation
    Inventors: Gregory E. Slobodzian, Robert A. Payne, Wayne Fiedler
  • Patent number: 4120071
    Abstract: A dual wheel caster assembly consisting of an arcuate central horn carrying an axle with projections on either side of the horn that rotatably receive wheels. The axle has recesses that receive annular projections on the wheels for the purpose of retaining the wheels in position.A vertical opening in the horn receives a vertical pintle having a portion projecting upwardly from the horn adapted to be received in an associated piece of furniture. This pintle has two spaced thrust surfaces, a lower one adapted to directly engage the plastic horn and the other one adapted to engage a one piece plastic bearing.The two thrust surfaces are spaced such that the lower thrust surface initially carries most of the load until a certain amount of wear causes the load to be distributed between the two thrust surfaces from the associated piece of furniture.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: October 17, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Donald C. Crescenzi
  • Patent number: 4107998
    Abstract: A sender device for use in a system indicating liquid level including a pivotal contact member having sliding and overlapping contact with an evenly wound, straight resistance member providing an output that varies as a non-linear function of movement of the contact member.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: August 22, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Kenneth James Taylor
  • Patent number: 4098072
    Abstract: A digital clock having backlash-free gearing between a step motor and digit wheels that indicate time. The gearing includes an input pinion connected to the step motor, intermediate gearing driven by the pinion and an output ring gear driven by the intermediate gearing and connected to drive a seconds digit wheel of the clock mechanism. A pivotal bracket rotatably carries the intermediate gearing and is biased in one direction by a spring so that the intermediate gearing is urged into backlash-free engagement with both the input pinion and the output ring gear. The bracket tilts as well as pivots to permit the intermediate gearing to properly mesh with both the input pinion and the output ring gear.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: July 4, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Frans Brouwer
  • Patent number: 4088247
    Abstract: An engine starting aid consisting basically of a housing, a coil assembly and a bail assembly for holding a can to be dispensed to the housing, wherein the housing is formed integrally with an armature guide projecting through the coil assembly. The coil has bobbin flanges that are formed integrally with the armature guide and thus with the housing itself. The coil assembly includes a flux plate defining a portion of the flux path of the coil that serves an additional function of providing projecting flanges that define brackets for mounting the engine starting aid where desired. Also provided is a bail assembly that not only holds the can to be dispensed in position in the housing but also serves the additional function when positioned adjacent the housing of protecting the elements therein while in transit.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: May 9, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Ronald J. Hickman
  • Patent number: 4086532
    Abstract: This disclosure relates to a system for sensing the speeds of one or more movable members and selectively displaying one of the speeds. The system includes a speed sensor associated with each moving member and providing an output that is a function of the speed. A mode selector circuit directs one of the outputs to a multiplier circuit that converts the output to a form which is displayed or indicated in the desired system of units. The mode selector circuit sets up the system for one mode of operation upon initial energization but may be changed to a different mode by a sealed contactless switch. The multiplier circuit is programmable using an externally adjustable code device. The display automatically adjusts for different requirements in each of the modes and for different external operating conditions.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: April 25, 1978
    Assignee: Stewart-Warner Corporation
    Inventors: Howard A. Aronson, San Chi Chung
  • Patent number: 4072301
    Abstract: A contour tracing apparatus in which the coordinate drive motors are cantilever supported on simple plates and needle thrust bearings to permit the motor pinions to be spring biased into engagement with the respective racks for moving the scanning head and associated tool. Kerf offset is provided by rotation of the scanning head optical assembly about a pivot member, which can be translated along a zero kerf adjustment line to provide forward offset. The pivot member is also eccentrically rotatable in response to rotation of the optical assembly about another axis to properly align the photocells of the optical assembly with a zero kerf mark. The optical assembly includes a plurality of lamps spaced about the photocells and one integral lens structure having annular prism surfaces encircling a convex lens surface to direct light from the lamps to the contour and from the contour to the cells.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: February 7, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Frans Brouwer
  • Patent number: 4068216
    Abstract: A warning system for detecting a burned out or defective bulb for a motor vehicle is disclosed. A transmitting circuit is connected to detect current flow through the bulb to be monitored. Failure of the bulb to draw current causes the transmitting circuit to produce a series of small voltage pulses on the battery line. These pulses are detected by a receiving circuit which causes an outage indicator light to be illuminated.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Stewart-Warner Corporation
    Inventors: Frans Brouwer, Francis E. Ferrari
  • Patent number: 4065176
    Abstract: A chair control mechanism for supporting both the seat and back rest of a chair, including a seat frame with a control member mounted for limited pivotal movement thereon for supporting the back rest. A torsion spring resiliently urges the control member and back rest in one direction. A back hinge is pivotally mounted on the control member and is adjustable with the aid of a threaded adjustment member and a second torsion spring to provide a positive attitute adjustment for the back rest. A back rest strap is provided carrying the back rest at its upper end and having at its lower end a T-shaped bayonet projection received in an elongated aperture in the back hinge in addition to a threaded fastener so that if for any reason the fastener fails, the back rest will not fall off.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: December 27, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Frank J. Fontana
  • Patent number: 4027501
    Abstract: A method for manufacturing a speedometer flexible shaft assembly in which the shaft has a plastic coupling molded on the end thereof to provide concentricity between the shaft and coupling. The coupling engages in the noncircular opening of a speedometer magnet shaft rotatably supported in the speedometer frame boss to which a shaft casing ferrule is secured. The ferrule carries a washer which rotatably supports the coupling and receives axial thrust forces.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: June 7, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Paul N. Hanebuth
  • Patent number: D244364
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: May 17, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Howard J. Rasmussen
  • Patent number: D244763
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: June 21, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Philip S. Stefaniak
  • Patent number: D244989
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: July 12, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Donald C. Crescenzi
  • Patent number: D245238
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: August 2, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Howard J. Rasmussen
  • Patent number: D245402
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: August 16, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Howard J. Rasmussen
  • Patent number: D245768
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: September 13, 1977
    Assignee: Stewart-Warner Corporation
    Inventor: Howard J. Rasmussen
  • Patent number: D246850
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: January 3, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Charles F. Hennecke
  • Patent number: RE29701
    Abstract: A timed buzzer assembly having a rectangular base with four terminals insert molded in the base and a generally cup-shaped cover member over the base providing the housing. All of the terminals project through the base member with the armature of the buzzer supported on one terminal and the coil assembly of the buzzer supported on a second terminal. For the purpose of timing the buzzer and also controlling a warning light, a bimetal timer is provided having bimetal elements one supported on a third terminal and the other supported on the above referred to second terminal. The fourth terminal is a ground to which a heating element for the bimetal timer is connected.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: July 11, 1978
    Assignee: Stewart-Warner Corporation
    Inventors: Arthur J. Little, William R. Mayer
  • Patent number: D249479
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: September 19, 1978
    Assignee: Stewart-Warner Corporation
    Inventor: Howard J. Rasmussen