Patents Represented by Attorney R. J. McCloskey
  • Patent number: 4371824
    Abstract: An inverter (34) which provides power to an A. C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A. C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A. C. machine is optimized. The control circuit includes a microcomputer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). A base drive and overlap protection circuit is included to insure that both transistors of a complimentary pair are not conducting at the same time.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: February 1, 1983
    Assignee: Eaton Corporation
    Inventor: David J. Gritter
  • Patent number: 4358815
    Abstract: Rigid flat branch circuit connectors secured to vertical bus bars have spaced pairs of upstanding threaded posts flanked by pairs of upstanding pins to receive the line side connectors of bolt-in or plug-in circuit breakers in any desired combination.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: November 9, 1982
    Assignee: Eaton Corporation
    Inventors: Howard E. Koslosky, Tustin C. Reetz
  • Patent number: 4329885
    Abstract: Disclosed is a power shift transmission having torque converter, an input shaft driven by the torque converter, a countershaft in continuous driving relation with the input shaft, an output shaft having first, second, and third speed ratios journaled thereon and driven via the countershaft, a reverse speed ratio gear splined to the output shaft and driven via a gear on an idler shaft driven by the countershaft, a first friction clutch mechanism for connecting the first speed ratio gear to the output shaft, a second friction clutch mechanism for connecting the output shaft directly to the input shaft, a blocker-clutch assembly for coupling the second and third speed ratio gears to the output shaft, and an actuator assembly for shifting the blocker-clutch assembly into and out of coupling engagement. The friction clutches are momentarily engageable to relieve driving and coast mode torque on the blocker-clutch and to synchronize the blocker-clutch.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: May 18, 1982
    Assignee: Eaton Corporation
    Inventor: Timothy J. Morscheck
  • Patent number: 4327248
    Abstract: Tubing and electrical cable utilizing shields made from a flexible metal tape that has a coating of a copolymer of ethylene with a monomer having a reactive carboxyl group bonded to at least one of its sides and to which coating is bonded an adhesive that is adapted to bond the coating to flexible or semi-rigid non-olefinic polymeric materials so as to provide such tubing and electrical cable with improved flexibility and resistance to wrinkling or bending.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: April 27, 1982
    Assignee: Eaton Corporation
    Inventor: Larry J. Campbell
  • Patent number: 4319126
    Abstract: A temperature responsive switching device is provided in which a pair of spaced bimetallic electrical switching arms each are anchored to opposite sides of a mounting block for attachment to the respective power leads of an electrical supply circuit. The free end of the spaced bimetallic arms each contain an electrical contact. A central arm is disposed between the contacts and has a neutral contact mounted thereon such that each of the contacts on the bimetallic arm is biased at room temperature into contact with the central electrical contact. Upon one of the bimetallic arms experiencing a predetermined temperature the circuit is broken by deflection of the bimetallic arm. Upon the switch experiencing a second predetermined but higher temperature, the second bimetallic arm is deflected to open the circuit.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: March 9, 1982
    Assignee: Eaton Corporation
    Inventor: Ante Lujic
  • Patent number: 4316132
    Abstract: An inverter (34) which provides power to an A.C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A.C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A.C. machine is optimized. The control circuit includes a micro-computer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: February 16, 1982
    Assignee: Eaton Corporation
    Inventor: Steven Geppert
  • Patent number: 4316172
    Abstract: A dynamic braking resistor as shown and claimed in U.S. Pat. No. 2,680,178 in which the insulator blocks (226) in this new disclosure are formed of a hot-molded organic compound instead of steatite or asbestos. This allows the insulator blocks to be securely mounted to the frame (210, 212), and allows the elimination of the springs, spring cups and pressure plate. In addition, the extra insulative mica sheet required by the above patent is eliminated without loss of protection from short circuits. However, in order to protect the insulator blocks from the heat generated by the resistor ribbons (218, 220), the support clips (232) are made longer to allow more expansion of the ribbons and to hold the ribbons further away from the insulator blocks. In an alternative embodiment, three resistor ribbons (234, 236, 238) are employed, and each support clip (240) supports one reflex bend of all three ribbons.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: February 16, 1982
    Assignee: Eaton Corporation
    Inventor: William R. Luy
  • Patent number: 4315521
    Abstract: A fluid pressure and electrical signal controller for providing a predetermined regulated vacuum signal from a variable source in response to changes in position of a rotatable input shaft when attached thereto and an electrical signal at a predetermined position of the input shaft. A pressure force balance type vacuum modulator valve is preloaded and biased by a spring connected to a cam follower which tracks a rotary cam turned by the input shaft. The modulator valve is slidably attached to the controller body for adjusting the preload length of the spring and a rotatable adjustment ring engages the valve and is threadedly received on the controller body for effecting sliding adjustment of the valve position on the controller body.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: February 16, 1982
    Assignee: Eaton Corporation
    Inventors: Patrick J. Anderson, Andrew A. Kenny
  • Patent number: 4316176
    Abstract: Tire pressure monitors are incorporated in vehicles having penumatic tires (14) to continuously or periodically measure the air pressure within the tires and to alert the driver should the pressure in one of the tires fall below a predetermined value. A self-contained battery powered rf transmitter unit (10) is affixed within the drop center (22) of each wheel (12) and includes a pressure sensing switch (84). The battery is contained within a housing (20) mounted to the external surface of the wheel adjacent a fill valve (30) through which electrical wires (50) are routed to the transmitter (11). The transmitter emits a pulse every 33 seconds when the air pressure within the tire is above a prescribed value. A receiver (13), located in the passenger compartment of the vehicle, receives the signal(s) from the transmitters and counts the number of signals received over a given time period established by an internal pulse generator.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: February 16, 1982
    Assignee: Eaton Corporation
    Inventors: Thomas A. Gee, Joseph A. Tremba
  • Patent number: 4314144
    Abstract: An elongate flexible package (10) adapted to contain and either enhance or contribute to the control of the heating efficiency of an elongate heating element contained therein and having sufficient flexibility to conform to the item to be heated to which it is secured. Package 10 is provided with a first layer (1) made from a flexible heat conductive or heat insulative material and a second layer (2) made from a heat insulative material that is secured along the length of package 10 to the side of first layer (1) that faces away from the item to be heated to which package (10) is secured. A third protective layer (3) is disposed over second layer (2) and a cavity (4) enclosed by a portion to the walls of layers (1), (2) and (3) extends along the length of package (10) having a cross-sectional configuration adapted to contain and permit the heating element to be axially inserted into or removed from package (10) without having to remove package (10 ) from the item to which it is secured.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: February 2, 1982
    Assignee: Eaton Corporation
    Inventors: Rudolph G. Wojtecki, Joseph P. Kaan
  • Patent number: 4313561
    Abstract: An electro-vacuum relay 10 is disclosed comprising a thermally responsive actuator 18 mounted on the lower end of a housing 14, 16 which defines a vent chamber 66. Upper and lower fluid ports 38, 40 are integrally molded into the housing and communicate with vent chamber 66. A pair of electrical terminals 22 and 24 include tab portions 30, 32 which extend through housing cover 16 and into the vent chamber. A carrier member 68 is movable in the vent chamber and has reacting against its upper end a compression biasing spring 88 and against its lower end an output member 64 of thermal actuator 18. A rectangularly shaped elastomeric valve member 72 is mounted in an opening 74 in the carrier and has an upwardly extending double beaded sealing surface 76 around its periphery that engages with a valve surface formed by an inner wall portion 42 of main housing 14.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: February 2, 1982
    Assignee: Eaton Corporation
    Inventor: Andrew A. Kenny
  • Patent number: 4312433
    Abstract: A viscous fan clutch is typically employed in a fan drive mechanism within a truck or automobile. A shaft, driven by the engine, rotates a clutch member within the fan drive. The clutch member is arranged for fluid engagement with a body member for the transmission of torque thereto when the fluid is disposed in an operating chamber defined by complimentary shear surfaces in the clutch and body members. During relative rotation between the two members, fluid is pumped through a radially disposed standpipe to a point within a fluid storage chamber near the axis of rotation to prevent bleed back of the fluid through the pump at times when the pump pressure is relatively low.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: January 26, 1982
    Assignee: Eaton Corporation
    Inventor: Warren G. Bopp
  • Patent number: 4311985
    Abstract: Tire pressure monitors are incorporated in vehicles having penumatic tires (14) to continuously or periodically measure the air pressure within the tires and to alert the driver should the pressure in one of the tires fall below a predetermined value. A self-contained battery powered rf transmitter unit (10) is affixed within the drop center (22) of each wheel (12) and includes a pressure sensing switch (84). The battery is contained within a housing (20) mounted to the external surface of the wheel adjacent a fill valve (30) through which electrical wires (50) are routed to the transmitter (11). The transmitter emits a pulse every 33 seconds when the air pressure within the tire is above a prescribed value. A receiver (13), located in the passenger compartment of the vehicle, receives the signal(s) from the transmitters and counts the number of signals received over a given time period established by an internal pulse generator.
    Type: Grant
    Filed: January 15, 1980
    Date of Patent: January 19, 1982
    Assignee: Eaton Corporation
    Inventors: Thomas A. Gee, Donald Speranza
  • Patent number: 4311992
    Abstract: A reusable, releasable, tamper-resistant fastener (10) for releasable attachment to the free end of shaft (14) is provided. The fastener comprises a hollow body (20) having a lower portion (24) and an upper portion (26) defining a cavity (28) therebetween. The lower portion has an aperture (30) therethrough and the upper portion has an elongated slot (32) therein. The central portion (38) of the slot is aligned with the aperture. A one-piece spring steel clip (22) is nonrotationally received in the cavity and has a nondeformed position for retaining a received shaft and a resiliently deformed position for release of a retained shaft. A specially configured tool (T) is provided for insertion through the slot and then rotation relative thereto for selective resilient deformation of the clip to selectively release retained shafts.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: January 19, 1982
    Assignee: Eaton Corporation
    Inventor: Donald W. DeChant
  • Patent number: 4311216
    Abstract: A vehicular disc brake of the floating caliper type wherein the torque plate 14 mounting the caliper 13 includes an annular base 50 which is cut out to provide a slot 72, diametrically opposed radially extending arm portions 52 and 54, and caliper mounting portions 56 and 58 extending axially from the free outer ends of the arm portions. The torque plate is mounted on the axle assembly 12 of the related vehicle by utilizing the slot in the base portion to slip the torque plate over the axle assembly at a reduced diameter location thereon inboard of the axle flange 46 and thereafter sliding it axially outboard on the axle assembly to seat the outboard face 82, of the base portion against the inboard face of the flange.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: January 19, 1982
    Assignee: Eaton Corporation
    Inventors: Wayne H. Garrett, Ted Zbikowski
  • Patent number: 4310079
    Abstract: Disclosed are several embodiments of a regenerative braking device for an automotive vehicle. The device includes a plurality of rubber rollers (24, 26) mounted for rotation between an input shaft (14) connectable to the vehicle drivetrain and an output shaft (16) which is drivingly connected to the input shaft by a variable ratio transmission (20). When the transmission ratio is such that the input shaft rotates faster than the output shaft, the rubber rollers are torsionally stressed to accumulate energy, thereby slowing the vehicle. When the transmission ratio is such that the output shaft rotates faster than the input shaft, the rubber rollers are torsionally relaxed to deliver accumulated energy, thereby accelerating or driving the vehicle.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: January 12, 1982
    Assignee: Eaton Corporation
    Inventor: Lyle O. Hoppie
  • Patent number: 4307283
    Abstract: An improved radial flow parallel plate plasma etcher, whose more uniform etching rate of wafers is due to radially decreasing the spacing between the electrodes wherein the gap between the electrodes is greatest at the circumference and smallest at center of the electrodes.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: December 22, 1981
    Assignee: Eaton Corporation
    Inventor: John Zajac
  • Patent number: 4306265
    Abstract: A power interruption protection system for AC electric motors. An electroresponsive relay (OL) in the energizing circuit of an electroresponsive main power contactor (MC) for an AC motor is responsive to deliberately deenergize the contactor if a power supply interruption persists for more than a few cycles of the supply frequency. A motor current level detector (CLD) monitors the motor current and if it falls below a predetermined level activates a pulse counter (CTR) to register pulses from a clock pulse generator (CPG) which produces pulses each half cycle of the supply frequency. If the pulse counter registers a certain number or more of such pulses an amplifier-driver (AD) energizes the relay to effect disconnection of the motor from the AC supply. The system is disclosed both as a stand-alone system, and as combined in a system affording current overload protection modes as well for AC motors.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: December 15, 1981
    Assignee: Eaton Corporation
    Inventors: Richard Kuntner, James Vander Meer
  • Patent number: 4305356
    Abstract: Disclosed is an improved valve selector assembly (10) for enabling and disabling the intake and exhaust valves of a cylinder of an internal combustion engine of the type having rocker arms (12 and 14) for opening and closing the valves in response to periodic forces pivoting the rocker arms about fulcrums (26 and 28) slidably mounted on studs (44 and 46). The selector assembly includes spring capsules (34 or 36) mounted on each stud and interposed between the associated fulcrum and a latch (38). The spring capsules are formed by stamping from sheet metal stock and the latch is a flat plate linearly movable between a valve enabling position preventing collapse of the spring capsules and a valve disabling position allowing collapse of the spring capsule.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: December 15, 1981
    Assignee: Eaton Corporation
    Inventor: Michael M. Walsh
  • Patent number: 4306180
    Abstract: A circuit for controlling the drive direction of an electrically-driven vehicle, the circuit having a plurality of spring return input switches (20) each actuation of which changes the direction of the vehicle, via a flip-flop circuit (21), an amplifier (22), and a relay (13); the direction contactor coils (10, 11) of the vehicle being connected in alternative circuits through the contacts of the relay (13).
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: December 15, 1981
    Assignee: Eaton Corporation
    Inventors: John B. Moore, Derek W. Rice