Patents by Inventor David M. Kaufman

David M. Kaufman 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: 9828176
    Abstract: A receptacle has an outer housing with an aperture and an internal frame sized and configured to fit within the outer housing. A telescoping assembly is configured to associate with the aperture such that the receptacle may be placed in a first position or a second position, the internal volume of the receptacle being greater in the second position than the first. A second receptacle is formed from an inner portion and an outer portion offset by a stepped portion. The stepped portion forms a collar rest edge at a first height and a collar rest platform at a second height greater than the first height. A collar has a base and is adapted to fit over the inner portion such that the base may rest on the collar rest edge in a first position or the collar rest platform in a second position increasing the internal volume.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: November 28, 2017
    Inventors: Philip Kaufman, David M. Kaufman
  • Publication number: 20130277365
    Abstract: A receptacle has an outer housing with an aperture and an internal frame sized and configured to fit within the outer housing. A telescoping assembly is configured to associate with the aperture such that the receptacle may be placed in a first position or a second position, the internal volume of the receptacle being greater in the second position than the first. A second receptacle is formed from an inner portion and an outer portion offset by a stepped portion. The stepped portion forms a collar rest edge at a first height and a collar rest platform at a second height greater than the first height. A collar has a base and is adapted to fit over the inner portion such that the base may rest on the collar rest edge in a first position or the collar rest platform in a second position increasing the internal volume.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 24, 2013
    Inventors: Phillip Kaufman, David M. Kaufman
  • Publication number: 20030093811
    Abstract: A directional coupler system includes an input diplex filter for splitting an input signal into a high band signal and a low band signal, a high band directional coupler for which the high band signal is coupled to an input of the high band directional coupler, a low band directional coupler for which the low band signal is coupled to an input of the low band directional coupler, a tap diplex filter coupled to a tap of each of the high band directional coupler and low band directional coupler and an output diplex filter for receiving and combining a high band signal output from the high band directional coupler and a low band signal output from the low band directional coupler.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 15, 2003
    Applicant: General Instrument Corporation
    Inventor: David M. Kaufman