Patents by Inventor Robert G. Lofley, Sr.

Robert G. Lofley, Sr. 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).

  • Publication number: 20150128771
    Abstract: An extension tool is disclosed comprising a first pole and a second pole. The second pole is partially disposed in the first pole for defining a variable overall tool length. A slide controller includes a lower clamp and an upper clamp. The first pole is disposed in the lower clamp. A first clamp compressor applies a compressive force to the lower clamp for defining a lower clamp lock and coupes the slide controller with the first pole. A second clamp compressor applies a compressive force to the upper clamp for defining an upper clamp lock and prevents slidable displacement of the second pole relative to the first pole. The second clamp compressor applies a non-compressive force to the upper clamp for defining an upper slide guide. The upper slide guide facilitates the slidable displacement of the second pole relative to the first pole.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventors: Robert G. Lofley, SR., Robert G. Lofley, JR.
  • Patent number: 8939051
    Abstract: An extension tool is disclosed comprising a first pole and a second pole. The second pole is partially disposed in the first pole for defining a variable overall tool length. A slide controller includes a lower clamp and an upper clamp. The first pole is disposed in the lower clamp. A first clamp compressor applies a compressive force to the lower clamp for defining a lower clamp lock and coupes the slide controller with the first pole. A second clamp compressor applies a compressive force to the upper clamp for defining an upper clamp lock and prevents slidable displacement of the second pole relative to the first pole. The second clamp compressor applies a non-compressive force to the upper clamp for defining an upper slide guide. The upper slide guide facilitates the slidable displacement of the second pole relative to the first pole.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: January 27, 2015
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: 8469426
    Abstract: An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lever is released for inserting the pin into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin lever is depressed for removing the pin from the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second ends of the second pole. In one embodiment, a claw is secured to the second end of the second pole for engaging either a knuckle coupler or a wheel brake of a railroad car.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: June 25, 2013
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: 8469425
    Abstract: An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin is coupled to the first pole and is slidably positioned into a protruded position for engaging into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin is slidably positioned into a retracted position for disengaging with the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second end of the second pole.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: June 25, 2013
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: 8434802
    Abstract: An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lever is released for inserting the pin into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin lever is depressed for removing the pin from the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second ends of the second pole. In one embodiment, a claw is secured to the second end of the second pole for engaging either a knuckle coupler or a wheel brake of a railroad car.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: May 7, 2013
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Publication number: 20120146354
    Abstract: An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lever is released for inserting the pin into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin lever is depressed for removing the pin from the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second ends of the second pole. In one embodiment, a claw is secured to the second end of the second pole for engaging either a knuckle coupler or a wheel brake of a railroad car.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 14, 2012
    Inventors: Robert G. Lofley, SR., Robert G. Lofley, JR.
  • Publication number: 20100109357
    Abstract: An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lever is released for inserting the pin into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin lever is depressed for removing the pin from the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second ends of the second pole. In one embodiment, a claw is secured to the second end of the second pole for engaging either a knuckle coupler or a wheel brake of a railroad car.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Inventors: Robert G. Lofley, SR., Robert G. Lofley, JR.
  • Patent number: D663193
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 10, 2012
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: D676735
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: February 26, 2013
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: D760564
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 5, 2016
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: D786638
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: May 16, 2017
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: D843183
    Type: Grant
    Filed: April 8, 2017
    Date of Patent: March 19, 2019
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.
  • Patent number: D871174
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: December 31, 2019
    Inventors: Robert G. Lofley, Sr., Robert G. Lofley, Jr.