Patents by Inventor Ronald W. Chaffin

Ronald W. Chaffin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Highly accurate position adjustment mechanism for the mold sections of an injection stretch blow molding machine
    Patent number: 5496166
    Abstract: A mold section carrier assembly is provided for use in an injection stretch blow molding machine. The assembly permits highly accurate position adjustment of mold sections on the platens of the machine, and includes a back plate on which each mold section is secured, and a pair of side rails secured on opposite sides of the mold section on each back plate. A block is provided for each side rail, and includes a planer engagement surface that is parallel to and bears against an engagement surface of the rail. A force transmitting mechanism moves each block relative to the corresponding side rail in a direction that is angled relative to the engagement surfaces in order to adjust the position of the mold section relative to the platen within a plane transverse to the support surface of the machine.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: March 5, 1996
    Assignee: R & D Tool and Engineering, Inc.
    Inventors: Matthew T. Vogel, David H. Wescoat, Ronald W. Chaffin
  • Electrical load center
    Patent number: 5341273
    Abstract: An electrical distribution load center consists of a non-conductive enclosure and a circuit breaker bus bar support panel that are interconnected by interlock members that can be snap-fitted to secure the two panels to each other. The support panel also has a latch member so that the bus bars can be mounted onto the panel in a heat-staking, insert-molded or snap-fit arrangement. The support panel also has elements for locking the circuit breakers onto the panels in conducting contact with the bus bars. The enclosure and the support panel are enclosed by a non-metallic trim panel that has a non-metallic door hinged thereto and which carries a latch for latching the door to the trim panel.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: August 23, 1994
    Assignee: Square D Company
    Inventors: Jeffrey O. Sharp, Michael R. Harris, Robert J. Cooper, Steve M. Ledbetter, Ronald H. Reed, Ronald W. Chaffin
  • Electrical load center
    Patent number: 5134543
    Abstract: An electrical distribution load center consists of a non-conductive enclosure and a circuit breaker bus bar support panel that are interconnected by interlock members that can be snap-fitted to secure the two panels to each other. The support panel also has a latch member so that the bus bars can be mounted onto the panel in a heat-staking, insert-molded or snap-fit arrangement. The support panel also has elements for locking the circuit breakers onto the panels in conducting contact with the bus bars. The enclosure and the support panel are enclosed by a non-metallilc trim panel that has a non-metallic door hinged thereto and which carries a latch for latching the door to the trim panel.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: July 28, 1992
    Assignee: Square D Company
    Inventors: Jeffrey O. Sharp, Michael R. Harris, Robert J. Cooper, Steve M. Ledbetter, Ronald H. Reed, Ronald W. Chaffin
  • Housing for an electrical load center
    Patent number: D318651
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: July 30, 1991
    Assignee: Square D Company
    Inventors: Jeffrey O. Sharp, Ronald H. Reed, Terrance A. Cassity, Ronald W. Chaffin, Frank R. Wilgus