Patents Represented by Attorney Linval B. Castle
  • Patent number: 6231341
    Abstract: A lingual dental matrix tensioner comprising two posts maintained parallel by two parallel rods through the posts at a right angle to the post axes One rod is threaded and has an end knob for adjusting the spacing between the posts, the other rod is a guide rod. Both ends of a matrix band are clamped to one post and the doubled matrix is guided through one of several slots in the other to form a retainer loop at any location. Rotating the threaded rod to separate the posts reduces the size of the loop.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: May 15, 2001
    Inventor: Jerry Don Wilson
  • Patent number: 6213359
    Abstract: A non-slip trousers hanger is formed from a conventional plastic clothes hanger by cementing a layer of polyurethane around the entire surface of the horizontal bar. This is easily and quickly done by slitting a polyurethane tubing having an I.D. equal to the diameter of the bar and slipping the tubing over an adhesive coated bar.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 10, 2001
    Inventor: Donald A. Gish
  • Patent number: 6163896
    Abstract: An auxiliary strainer that covers the large openings of a stall shower drain strainer that will protect against the loss of earrings and small valuables in the shower as well as protect against broken toes and fingers of curious children. The strainer with approximately 160 holes of 1/8 inch plus a larger center resilient hole is snapped to a ball on the end of a weighted rod that drops into the existing shower drain strainer.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: December 26, 2000
    Inventor: Bing Wang Lee
  • Patent number: 6131976
    Abstract: A tool for quickly coupling a crane hook to a dovetailed socket attached to a load consists of a heavy frame with a plate that pivots out on bushings near the lower end of the frame. Both the frame and pivoting plate have outward slanting surfaces at the lower ends that engage the dovetailed socket when the plate is pivoted up against the frame and they are locked together by a crane hook passing through aligned holes through both the plate and frame.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: October 17, 2000
    Inventor: Fred D. Silva
  • Patent number: 6126049
    Abstract: A conventional plastic clothes hanger has a horizontal bar covered with plastic foam such as polyurethane foam to give it a non-slip surface for hanging trousers and other garments. Several auxiliary clamps are described for cooperating with the foam covered horizontal bars for hanging multi-layers or trousers by the cuffs.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: October 3, 2000
    Inventor: Donald A. Gish
  • Patent number: 6116600
    Abstract: A slidable block puzzle game played by maneuvering rectangular blocks in a smooth surfaced box with low walls is hinged to a lid of the same size that contains partitions that enclose each of the rectangular blocks in their initial game-starting position when the lid is closed.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: September 12, 2000
    Inventor: Labib A. Aryan
  • Patent number: 6102549
    Abstract: A portable lighting system comprised of a plug-in lamp and a rechargeable power pack having a single phone jack and two parallel circuits to the battery. When upright, a discharge circuit containing a mercury switch connects the battery to the lamp. When inverted, the discharge circuit is opened and the parallel circuit containing a diode allows current to only pass into the battery from the jack coupled to a battery charger. The system will provide light to table surfaces for commercial use such as restaurants, retirement homes as well as in private homes, such as for swimming pool areas and nurseries.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: August 15, 2000
    Inventors: Stephen E. Thomas, Mark S. Thomas
  • Patent number: 6069293
    Abstract: A healing pack for applying an epsom salts soak to body parts normally inaccessible to soaking includes a pliable, saucer shaped, foam cup containing a water soluble gel mixture of epsom salts and glycerin. When applied to sprains and contusions it functions the same as soaking in epsom salts and water.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: May 30, 2000
    Inventor: Carmine R. De Somma
  • Patent number: 6039679
    Abstract: An exercising dumbbell comprising a tubular body with attached "U" shaped handle for use with two hands. The body contains a D.C. motor which is geared to a stationary central shaft and which may rotate around the shaft to generate strong vibrations. Batteries are contained within the handle and motor speed is varied from zero to maximum by pressure activated switches under each hand. Function switches on the body reverse motor direction, permit one-hand, both-hand or hands-free operation, provide music through an included speaker, and generate an exhilarating train of pulses.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: March 21, 2000
    Inventor: Simon S. C. Yu
  • Patent number: 6003892
    Abstract: Small boats being trailer launched from steep ramps are in danger of spilling water over the transom if the bow is held high by the trailer. The invention is for a two component jack screw mechanism that can lower the trailer tongue below the trailer hitch without disconnecting it from the towing vehicle. One component coupled to the trailer tongue has a vertical tower that fits within a second tower attached to the second component that is coupled to the trailer hitch. A manually operated crank attached to a jack screw within the two towers lowers the tongue and the bow of the boat so that the boat may float from the trailer.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: December 21, 1999
    Assignees: Dale F. Noble, Francois deFaymoreau
    Inventor: Albert Earl Henson
  • Patent number: 6000688
    Abstract: A production V-block including four or more individually vertically adjustable V-blocks on a single ferromagnetic base for magnetically securing to a machine tool table, all of the V-blocks are ground to identical depths for simultaneous identical operations on several work pieces.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: December 14, 1999
    Inventor: Joseph A. Giangrasso
  • Patent number: 5984757
    Abstract: A wall mounted figure that has swinging legs and arms and a swaying head that continuously moves in dancing movements is constructed with two pendulums with permanent magnets influenced by electromagnetic fields generated by two current-carrying coils. The pendulums operate independently so that the legs and the head and arms swing at different rates to give an appearance of a person dancing the twist.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: November 16, 1999
    Inventor: Morgan S. Tsai
  • Patent number: 5975394
    Abstract: A portable hard cover dispenser for a small roll of interconnected plastic bags has a dispensing slot for removing a bag, a brake for holding the roll of bags while a bag is torn from the roll, a bag rewinder, and is equipped with a belt hook for convenience in carrying.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: November 2, 1999
    Inventor: Shlomo Shuval
  • Patent number: D454196
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: March 5, 2002
    Inventor: Cicero H. Malilay
  • Patent number: D415351
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: October 19, 1999
    Inventor: Jessie Li-Kuo Wang
  • Patent number: D416189
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: November 9, 1999
    Inventor: Fred G. Bollman
  • Patent number: D418630
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: January 4, 2000
    Inventor: Dawn Flory
  • Patent number: D419294
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: January 25, 2000
    Inventor: Jesse Li-Kuo Wang
  • Patent number: D423190
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: April 25, 2000
    Inventor: Major R. Castleberry, II
  • Patent number: D429039
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: August 1, 2000
    Inventors: Alvin L. Calhoun, Marilou B. Calhoun