Patents Represented by Attorney, Agent or Law Firm William F. Hamrock
  • Patent number: 5611123
    Abstract: The holder is a plastic tube split lengthwise into substantially mirror image halves forming two opposed clamping members hingedly connected by spring operated handles which activate opening and closing of the clamping members to engage a towel or other items hanging on a support.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: March 18, 1997
    Inventor: Darin Prizzi
  • Patent number: 5548858
    Abstract: A low cost disposable sleeping bag for use on a bed or cot or other support. The sleeping bag includes opposing single sheets of nonwoven, soft paper forming an envelope, an apron for writing messages, keeping records, locating advertisements or playable amusement games or other desirable information, and an attached pillow case. The sleeping bag provides a comfortable confined sleeping area with a pillow for the user and prevents the user from coming in bodily contact with the bed, cot or support and provides information relevant to the user.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: August 27, 1996
    Inventor: Yong F. Shoa
  • Patent number: 5498333
    Abstract: The invention is directed to a transparent plastic cover for a chlorinator container or lid for a filtering container used in swimming pools. The cover or lid is prepared from transparent plastic which is durably resistant to attack by the chlorine fumes and chlorinated water in the containers. The cover or lid includes a gasket sealably enclosed between the cover or lid and the container and is protected from the chlorine fumes and the chlorinated water in the containers.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: March 12, 1996
    Inventor: David M. Canther
  • Patent number: 5487292
    Abstract: The invention is directed to a method and apparatus for advancing tubing into a draw die in reducing the diameter of the tubing. The tubing is advanced forward through opposed rotating tolls which apply compressive stress to the tubing and through a close fitting bushing. High pressure lubricant is pumped through a die socket which creates radial compressive stress on the tubing passing through the die socket into the draw die.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: January 30, 1996
    Inventor: Francis J. Fox
  • Patent number: 5468473
    Abstract: An aqueous alcohol carrier solvent based antiperspirant composition which does not contain silicone products and which forms a thick lotion for use on the hands and feet. The composition includes a thickener--absorber mixture of hydroxylalkylcellulose, preferably hydroxypropylmethylcellulose, with colloidal silica and silicates and an antiperspirant active material, preferably chlorhydrol. A preferred embodiment includes the addition of Tea Tree Oil to the formulation. The antiperspirant composition reduces sweating on the hands and feet and is nonirritating, nontacky and mildly soothing to the skin.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: November 21, 1995
    Assignee: Innova Products, Inc.
    Inventor: Patricia Mullen
  • Patent number: 5462462
    Abstract: A plastic propeller for marine electric trolling motors modified to prevent the entanglement and build-up of weeds by the application to its surface of a thin sheet of metal formed in the shape and size of the blade and extending beyond the blade's leading edge.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: October 31, 1995
    Inventor: Frank Woodley
  • Patent number: 5454760
    Abstract: A method and construction of forming a pulley wheel mounted on a shaft. The pulley includes a pair of identical discs fused back to back by laser welding forming a pulley wheel with a peripheral groove and axial central opening. The pulley wheel is mounted on the shaft having a serrated or toothed exterior surface.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: October 3, 1995
    Inventor: Ernesto Aranibar
  • Patent number: 5449320
    Abstract: Fiberglass reinforced plastic duct exhaust systems including sections of the duct system joined together by collapsible collar plastic joints having low melting points which collapse or drop-out of the system when exposed to high temperatures.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: September 12, 1995
    Inventor: Lawrence E. Shea
  • Patent number: 5434510
    Abstract: There is disclosed a dual component circuit testing and utility tool for testing defective circuits and bulbs in miniature Christmas light sets. The testing and utility tool includes a nonconductive rod having a double pronged conductive component at one end and a conductive paw component at the other end.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: July 18, 1995
    Inventor: William Halstead
  • Patent number: 5413349
    Abstract: A golf game apparatus having a plurality of game boards representing different golf hole playing areas set within different scenic settings. A grid pattern having intersecting longitudinal and transverse straight lines forming quadrilateral blocks gradually changing in size relative to the perspective distance encompasses the playing areas and provides the playing surface. A plurality of playing pieces move on the playing surface subject to chance devices including combinations of dice having numerical indicia, dice having weather conditions indicia and playing cards affecting the club and direction of the hit.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: May 9, 1995
    Inventor: David M. Canther
  • Patent number: 5400183
    Abstract: A simple portable rearview mirror apparatus for hunters which can be used on the ground or above the ground by being attached to a tree or other object. The apparatus which can be made of wood, plastic or metal includes a hollow rectangular box frame having opposing side walls attached to a back wall and a top wall. A reflective mirror is hingedly attached at its bottom end within the frame interior to the lower interior of the side walls and is slidably mounted at its top end within opposing swivel slot arch shaped openings provided on the upper side walls surface. The mirror moves back and forth by means of attachments riding within the swivel openings to give a upper and lower view of the background. The apparatus is used at ground level by being supported by a rod inserted into the ground which is secured to a locking element releasably attached to the back wall. A fastening cord which is looped through the apparatus allows it to be tied to an object above the ground such as a tree.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: March 21, 1995
    Inventor: John L. Rosser
  • Patent number: 5391877
    Abstract: A combined imaging scanner is disclosed for fusing together image data obtained by a computed tomographic (CT) scanner and a single photon emission computed tomographic (SPECT) scanner. The diagnostic radiology imaging CT Scanner anatomical data provides a background map with which is convolved the radioscope distribution SPECT scanner data to yield a color shaded relief image which can then be printed on a laser film printer or other output device. Both sets of data are collected almost simultaneously while the patient is in a fixed position. The apparatus includes combined gantries supporting both CT and SPECT scanners, a computer, a printer and a table to slip through both gantries while holding the patient in a fixed position.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: February 21, 1995
    Inventor: Michael A. Marks
  • Patent number: 5379725
    Abstract: A reinforced safety harness for a child or adult comprising a front vest which covers the front torso, a pair of criss-crossing back straps, a waist belt which encircles the front and back torso secured by an adjustable belt buckle, a reinforcing belt which extends from the belt buckle through reinforcing loops on the front and back of the harness about the torso, a tether belt which extends from the reinforcing belt to be attached to a person's wrist or a restraining element or to be attached to the harness.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: January 10, 1995
    Inventors: Linda K. Roberson, Cathy M. Egli, Suzanne M. McMillan, Keith J. Mackey
  • Patent number: D355022
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: January 31, 1995
    Inventor: David M. Canther
  • Patent number: D368375
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: April 2, 1996
    Inventor: David M. Canther
  • Patent number: D370332
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 4, 1996
    Inventors: Linda K. Roberson, Cathy M. Egli
  • Patent number: D370744
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 11, 1996
    Inventors: Linda K. Roberson, Suzanne M. Mc/Millan
  • Patent number: D372296
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: July 30, 1996
    Inventor: David M. Canther
  • Patent number: D374979
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: October 29, 1996
    Inventors: Linda K. Roberson, Keith J. Mackey
  • Patent number: D377267
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: January 14, 1997
    Inventor: Stephen B. DiPietro