Patents Represented by Law Firm Rockey and Rifkin
  • Patent number: 5529294
    Abstract: The lighted stand-up target of the invention comprises a housing attached to the playfield and a target switch pivotably mounted to the housing. An array of light emitting diodes (LEDs) are positioned on a printed circuit board mounted within the housing. The target switch is actuated each time that it is struck by a pinball. In response thereto, the LEDs are lit indicating the number of times that the impact target has been struck.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: June 25, 1996
    Assignee: Williams Electronics Games, Inc.
    Inventors: Dennis P. Nordman, Armando X. Zuniga, Steven J. Vornsand
  • Patent number: 5526662
    Abstract: A combination key-like device and electrical receptacle for the key-like device wherein the receptacle defines electrical contact surface areas for mating with corresponding contact surface areas defined by the key-like device. At least one clip defines the electrical contact surface areas for the said receptacle and the clip is supported on the receptacle body. A keyway opening is defined by the body and the clip comprises a transverse portion and a pair of legs extending outwardly from the transverse portion with contact elements defined by each of the legs extending inwardly toward the keyway opening and with openings defined by the body communicating with said keyway opening for receiving the contact elements. A contact band is carried by the key-like device whereby insertion of the key-like device into the keyway opening brings the contact band into electrical contact with at least one of the contact elements.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: June 18, 1996
    Assignees: Duncan Industries Parking Control Systems Corp., Datakey, Inc.
    Inventors: Robert R. Diekhoff, Joseph H. Sutton, Hazem Hassan, Michael Boehner
  • Patent number: 5525668
    Abstract: Novel thermoplastic elastomer compositions, made by dispersing a polyolefin elastomer phase containing functionalized EPM or EPDM in a polyamide resin followed by cross-linking of the elastomer phase, are described. The cross-linked phase exists as discreet particles, providing an overall blend which remains thermoplastic. The resulting blend may be used in the fabrication of elastomeric goods without the need for a separate vulcanization step after the desired object is formed.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: June 11, 1996
    Assignee: DSM Copolymer, Inc.
    Inventor: Errol J. Olivier
  • Patent number: 5524742
    Abstract: A sprag clutch having inner and outer concentric races 1, 2 with sprags 3 pivotally located between the races 1, 2. A circumferential garter spring 6 locates over the sprags 3 to bias them to a wedging position. Relative rotation of the races 1, 2 in one direction causes a centrifugal force CF to act on each sprag 3 to pivot away from contact with the outer race 2. The center of gravity G of each sprag 3 is located radially inwards of its center of rotation C such that when the sprag 3 pivots the centrifugal couple CF increases to overcome the increased tension couple SF of the garter spring to allow a snap action lift off of each sprag 3. The perpendicular distance of the center of gravity from the pivot center of each sprag increases during pivoting to cause an increase in the centrifugal couple. At the same time the perpendicular distance of the pivot point of action of the resilient mean from the pivot center decreases during pivoting.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: June 11, 1996
    Assignee: Renold Plc.
    Inventor: Alan Pratt
  • Patent number: 5524887
    Abstract: A multi-directional ball popper for a pinball game provides an unpredictable path for the game ball as it emerges from the popper. A pair of solenoid plungers are provided on the underside of the game playfield and aligned with respect to the ball position when it rests in a recess on the playfield. A centering plate is provided to ensure precise alignment of the ball with both of the plungers. A switch is provided in the ball popper to detect the presence of the game ball. An optional guide element is provided above the playfield in order to guide the ball to one of two elevated surfaces after the ball emerges from the popper.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: June 11, 1996
    Assignee: Williams Electronics Games, Inc.
    Inventors: John Trudeau, Edward F. Hicks
  • Patent number: 5522887
    Abstract: A mechanism and method for filling the vacated eyesocket of a deceased person after an eyeball has been donated. A plurality of different sized implant members are positioned within each other, and the larger implant members can be opened to access the smaller implant members. Protrusions are formed on each implant member for engaging the inner surface of the deceased person's eyelids when the implant is positioned within the eyesocket. The different sized implants are also adapted for implantation within the deceased's eyeball when only the cornea and fluid sac have been removed during an in situ excision.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: June 4, 1996
    Inventor: Michael J. V. Hoe
  • Patent number: 5523778
    Abstract: A segmented charge tunnel for ink jet printing having a plurality of individual segments is utilized to sequentially apply charges to a droplet stream. Precise location of the stream break-off point within the tunnel is accomplished by identifying which one of the segments of the charge tunnel is associated with the detection of a maximum charge by a downstream sensor. Precise determinations of the distance between the break-off point and the detection downstream permits accurate droplet flight time measurement to allow ink composition and spacing to be controlled.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: June 4, 1996
    Assignee: Videojet Systems International, Inc.
    Inventor: Andrew E. Fickling
  • Patent number: 5517214
    Abstract: The drier consists of a plurality of nozzles that direct a small volume of air onto the printed image at as high a velocity as possible without disturbing the wet image. The air so delivered while it must be dry, does not have to be heated to effectively dry the image, however, the drying time can be reduced by increasing the air temperature if desired. The use of high velocity air creates what is known is "skin effect" to dry the ink where the outer surface of the ink is quickly dried.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: May 14, 1996
    Assignee: A.B. Dick Company
    Inventors: Chandrakant R. Bhatia, Steven S. Kuhlin
  • Patent number: 5515908
    Abstract: An apparatus and method for strip casting of metals on at least one endless belt whereby the belt is cooled when it is not in contact with molten metal deposited on its surface.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: May 14, 1996
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Donald G. Harrington
  • Patent number: 5516103
    Abstract: A ramp element is provided on the top of a drop target member so that when the target is activated and moved to its lower position, the ramp is accessible by the game ball and may travel thereover to reach elevated game features. A series of ramp elements may be provided in a row so that when all targets have been lowered, there is provided a ramp of increased size providing increased access to the elevated game feature.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: May 14, 1996
    Assignee: Williams Electronics Games, Inc.
    Inventors: Patrick Lawlor, John Krutsch
  • Patent number: 5516849
    Abstract: The present invention provides a continuous process for producing an adducted derivatized EPM or EPDM oil solution in which a grafted ethylene polymer is adducted with an antioxidant diamine for formation of an adduct during holding.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: May 14, 1996
    Assignee: DSM Copolymer, Inc.
    Inventors: Tony L. Caines, Michael L. Junker
  • Patent number: 5517216
    Abstract: Flight time of a stream of ink drops is measured and compared against a set point to determine variations therefrom. Variations due to changes in the ink composition are compensated for by adding or withholding solvent in proportion to the detected change. Changes due to variations in nozzle drive voltage result in the computation and use of a new flight time set point value, if necessary to avoid erroneous corrective action.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: May 14, 1996
    Assignee: Videojet Systems International, Inc.
    Inventors: Michael E. Stamer, George Arway
  • Patent number: 5514228
    Abstract: A method for manufacturing aluminum sheet stock which includes hot rolling an aluminum alloy sheet stock, annealing and solution heat treating it without substantial intermediate cooling and rapid quenching.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: May 7, 1996
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Gavin F. Wyatt-Mair, Donald G. Harrington
  • Patent number: 5511783
    Abstract: A pinball momentum transfer device or Newton ball device utilizes an impact bail anchored to the playfield. The impact ball, in cooperation with guide elements on the playfield, defines a ball travel area for captive balls to which momentum can be transferred from a game ball via the impact ball so as to project one of the captive balls towards a target element contained within the ball travel area.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 30, 1996
    Assignee: Williams Electronics Games, Inc.
    Inventors: John A. Popadiuk, John W. Skalon
  • Patent number: 5507488
    Abstract: A ball diverter located in a ramp or other ball path is moveable between first and second positions and is used to selectively divert a pinball between two paths. The player uses buttons located on the game cabinet to control the position of the diverter and the path travelled by the ball. The mechanism for moving the diverter includes two solenoid coils which are arranged such that the diverter can be held in either the first or second position indefinitely without either solenoid being continuously actuated.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 16, 1996
    Assignee: Williams Electronics Games, Inc.
    Inventors: Brian R. Eddy, Robert C. Friesl
  • Patent number: 5507351
    Abstract: This invention provides an improved apparatus for maintaining tooth rotating wheels, which are used to penetrate the soil either as a cultivating apparatus, a row cleaning apparatus, or as closing apparatus for row planters free of mulch, trash, dirt and/or rocks. By removing the debris from the space between the teeth on the wheel, the wheel can penetrate the soil to a controlled or desired depth as set by the operator. Debris between the wheels can limit the depth of penetration by the formation of a solid or semi-solid mass generally resembling of variable rim diameter. The wheels may be driven by a power mechanism or may be rotated by the penetration in the ground and the forward motion of a propulsion unit.The toothed wheel is kept clean of debris, thereby allowing accurate depth penetration as determined by conditions and requirements.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: April 16, 1996
    Inventor: Howard Martin
  • Patent number: 5498006
    Abstract: A mechanical labyrinth seal for rotating shafts having first and second ring members. The first ring member, includes a series of annular axially extending grooves and flanges. The second ring member is adopted for insertion into said first ring member with a plurality of complimentary inwardly extending flanges and grooves to form a well known labyrinth seal. There is a slot or channel through the labyrinth or maze connecting the exterior atmosphere to the interior of the seal assembly. The second ring member is adapted to rotate with the shaft and includes an annular recess near the shaft and inwardly toward the housing. There is a plurality of radial holes drilled in the first ring member to be opposite the recess in said second ring member and a plurality of pin members are inserted into the holes in said first ring member and are inserted into the recess of said second ring member. The recess being slightly larger in axial direction than the pin members.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: March 12, 1996
    Assignee: Inpro Companies, Inc.
    Inventor: David C. Orlowski
  • Patent number: 5497717
    Abstract: A seed furrow closing device for planting units including a plurality of closing wheels, each wheel having a plurality of sharpened teeth on the periphery. The closing wheels canted at an angle to the vertical and press toward the seeds in the furrow.The teeth, controlled by down pressure mechanism, penetrate the soil to till compacted soil and firm loose soil to improve germination and emergence. The sharpened teeth interact with the soil to remove residue from the teeth as the teeth emerge. The penetration of the teeth helps break up clods and also stabilizes the rear of the planting unit.A trailing press wheel over the furrow may provide intermittent compacting of the soil loosened by the closing wheels over the center of the furrow.This loosening and compaction by the sharpened toothed wheels improves the germination and emergence of the seeds in the furrow.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: March 12, 1996
    Inventor: Howard Martin
  • Patent number: 5496423
    Abstract: A method for manufacturing aluminum alloy sheet stock including two sequences of continuous, in-line operations. The first sequence includes the continuous, in-line steps of hot rolling, coiling, coil self-annealing and the second sequence includes the continuous, in-line steps of uncoiling, quenching without intermediate cooling, cold rolling, and coiling.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: March 5, 1996
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Gavin F. Wyatt-Mair, Donald G. Harrington
  • Patent number: D367681
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: March 5, 1996
    Inventor: William G. Lagadyn