Patents by Inventor Robert D. Campbell

Robert D. Campbell 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).

  • Patent number: 9459069
    Abstract: A lubricating arrow rest is configured to lubricate an arrow shaft when the arrow is inserted into the arrow rest and then shot. A lubricating arrow rest has a plurality of whiskers configured within a whisker retainer and a lubricant receiving feature configured to accept a lubricant into the lubricating arrow rest. A lubricant reservoir may be attached to a lubricant receiver feature and may have a lubricant dispensing feature to force lubricant from the lubricant reservoir onto the whiskers through a supply orifice. A whisker retainer may comprise a retainer conduit that disperses the lubricant through a plurality of outlet orifices configured around the inner perimeter of the whisker retainer. A lubricating arrow rest may have a bow fixture for attachment to a bow. A lubricant reservoir may be coupled to the bow fixture and a bow fixture conduit may couple the lubricant reservoir with a supply orifice.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: October 4, 2016
    Assignee: Slick Hunting Products Inc
    Inventors: Robert D Campbell, Michael L Campbell
  • Patent number: 6003897
    Abstract: A front suspension and steering mount cradle is disclosed for front-wheel-drive and all-wheel drive motor vehicles which provides improved component packaging, noise isolation, and heat shielding. The cradle includes laterally spaced apart supporting end arches integrally joined by a transversely extending inverted U-section saddle, wherein each arch is defined by an upper section terminating in downwardly diverging front and rear legs. Each front leg ends in a pivot pin fitting for connection to a suspension arm front pivot bushing while each rear leg terminates in a footpad housing connection for a rear bushing fitted on a rearward extending stem of each arm. Each cradle forward leg provides a pedestal bracket for supporting a frame front isolator assembly while each rear footpad supports a frame rear isolator assembly. A pair of upstanding engine mounting flanges on the saddle bight wall insure exact powertrain orientation.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: December 21, 1999
    Assignee: Chrysler Corporation
    Inventors: Kenneth W. Dostert, Robert D. Campbell, David L. Hoelscher
  • Patent number: 5997038
    Abstract: A front suspension and steering mount cradle is disclosed for front-wheel-drive and all-wheel drive motor vehicles which provides improved component packaging, noise isolation, and heat shielding. The cradle includes laterally spaced apart supporting end arches integrally joined by a transversely extending inverted U-section saddle, wherein each arch is defined by an upper section terminating in downwardly diverging front and rear legs. Each front leg ends in a pivot pin fitting for connection to a suspension arm front pivot bushing while each rear leg terminates in a footpad housing connection for a rear bushing fitted on a rearward extending stem of each arm. Each cradle forward leg provides a pedestal bracket for supporting a frame front isolator assembly while each rear footpad supports a frame rear isolator assembly. A pair of upstanding engine mounting flanges on the saddle bight wall insure exact powertrain orientation.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: December 7, 1999
    Assignee: Chrysler Corporation
    Inventors: Kenneth W. Dostert, Robert D. Campbell, David L. Hoelscher
  • Patent number: 5879026
    Abstract: A front suspension and steering mount cradle is disclosed for front-wheel-drive and all-wheel drive motor vehicles which provides improved component packaging, noise isolation, and heat shielding. The cradle includes laterally spaced apart supporting end arches integrally joined by a transversely extending inverted U-section saddle, wherein each arch is defined by an upper section terminating in downwardly diverging front and rear legs. Each front leg ends in a pivot pin fitting for connection to a suspension arm front pivot bushing while each rear leg terminates in a footpad housing connection for a rear bushing fitted on a rearward extending stem of each arm. Each cradle forward leg provides a pedestal bracket for supporting a frame front isolator assembly while each rear footpad supports a frame rear isolator assembly. A pair of upstanding engine mounting flanges on the saddle bight wall insure exact powertrain orientation.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 9, 1999
    Assignee: Chrysler Corporation
    Inventors: Kenneth W. Dostert, Robert D. Campbell, David L. Hoelscher
  • Patent number: 5424791
    Abstract: A camera stabilizing support for steadying (either still or moving at a constant rate) a camera and/or camera and accessories by a photographer while taking pictures. The device includes a shoulder stock having an upper arm and lower arm which together substantially encompass the photographer's shoulder, an extension member attached to the shoulder portion, and a rectangularly shaped enclosure frame attached to the extension member. The rectangularly shaped enclosure frame is so constructed as to provide a hand piece for the photographer to grip and hold the invention during picture taking as well as carrying over long distances. In addition, as part of the enclosure frame, an upper camera and accessories plate and lower strobe light and tripod plate are provided. The upper plate is adapted to receive a release mechanism for securing the camera and lens and the lower plate alternately or simultaneously secures a strobe light bracket and a tripod.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: June 13, 1995
    Inventor: Robert D. Campbell
  • Patent number: 5223846
    Abstract: A multiple-beam energy transmission system for the simultaneous transmission of at least two beams of energy directed in different directions from a single multi-element transducer assembly includes a signal source arranged to generate a train of successive signal pulses. Signal modifying circuitry associated with each element is provided for modifying the phase of each successive signal pulse by applying to each successive signal pulse a complex aperture weighting function, different phase shifts being applied to successive signal pulses, the phase shifts applied for one beam being unrelated to those applied for another. Control circuitry controls operation of the signal modifying circuitry such that the complex aperture weighting function applied to each successive signal pulse from the signal source by the signal modifying circuitry results in the radiation of the required beams of energy from the multi-element transducer assembly.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: June 29, 1993
    Assignee: GEC-Ferranti Defence Systems Limited
    Inventor: Robert D. Campbell
  • Patent number: 5217863
    Abstract: A method of detecting point mutation in nucleic acids is described which comprises hybridizing a piece of control DNA or RNA without mutations with a piece of test DNA or RNA generally corresponding to the test DNA or RNA but possibly with mutations to produce a heteroduplex, treating the heteroduplex with hydroxylamine or osmium tetroxide and with piperidine, and subjecting the resulting material to separation treatment. Individual strands of both senses of control nucleic acid can be labelled in turn allowing detection of all possible mutations.
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: June 8, 1993
    Assignee: Medical Research Council
    Inventors: Richard G. H. Cotton, Robert D. Campbell