Patents by Inventor LeRoy A. Prohofsky

LeRoy A. Prohofsky 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: 20120024683
    Abstract: In a compact electronic device having switches controlling a plurality of commands, the user interface is conditionally modified to enable the user to invoke a subset of the total command set under conditions of diminished tactile or visual acuity.
    Type: Application
    Filed: March 25, 2011
    Publication date: February 2, 2012
    Inventor: LeRoy A. Prohofsky
  • Patent number: 6308479
    Abstract: A system for diverting rain water from the underside of a deck structure is comprised of a side-by-side array of flexible water-collecting elements , each of which collect and divert rain water from a regional area of the deck structure. Each water-collecting element is shaped to control the flow of water without restriction or impediment. This shape further increases the rigidity to the water-collecting element making it relatively easy to install and support. Coupling elements are interposed between adjacent water-collecting elements which function to fix them together such that the resulting array gains structural properties and impermeability comparable to a single corrugated sheet of the same material. Mounting elements secure this array to the underside of the deck. The result is an aesthetically attractive and environmentally rugged system which is realized with very economical components.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: October 30, 2001
    Inventor: Leroy A. Prohofsky
  • Patent number: 6260316
    Abstract: A combination of versatile and inexpensive elements are combined on site to create an impermeable assembly which collects water falling through a grating or cracks between adjacent boards of a deck and completely drains it to one or more points at a selected edge. The impermeable assembly is comprised of a plurality of peaks and valleys configured to simplify installation, conserve headroom and provide an aesthetically pleasing finished surface. In a first embodiment, a collector collects the water falling through cracks between boards spanning the space between adjacent joists from which it drains transversely to a gutter positioned beneath the joists. The gutter drains the water longitudinally to the perimeter of the deck.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: July 17, 2001
    Inventors: Richard A. Davis, LeRoy A. Prohofsky
  • Patent number: 6226956
    Abstract: A combination of versatile and inexpensive elements are combined on site to create an impermeable assembly which collects water falling through a grating or cracks between adjacent boards of a deck and completely drains it to one or more points at a selected edge. The impermeable assembly is comprised of a plurality of peaks and valleys configured to simplify installation, conserve headroom and provide an aesthetically pleasing finished surface. In a first embodiment, a collector collects the water falling through cracks between boards spanning the space between adjacent joists from which it drains transversely to a gutter positioned beneath the joists. The gutter drains the water longitudinally to the perimeter of the deck.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: May 8, 2001
    Inventors: Richard A. Davis, LeRoy A. Prohofsky
  • Patent number: 6212837
    Abstract: A combination of versatile and inexpensive elements are combined on site to create an impermeable assembly which collects water falling through a grating or cracks between adjacent boards of a deck and completely drains it to one or more points at a selected edge. The impermeable assembly is comprised of a plurality of peaks and valleys configured to simplify installation, conserve headroom and provide an aesthetically pleasing finished surface. In a first embodiment, a collector collects the water falling through cracks between boards spanning the space between adjacent joists from which it drains transversely to a gutter positioned beneath the joists. The gutter drains the water longitudinally to the perimeter of the deck.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: April 10, 2001
    Inventors: Richard A. Davis, LeRoy A. Prohofsky
  • Patent number: 4546349
    Abstract: Apparatus for selectively extracting, magnifying and juxtapositioning selected areas of a raster scan image relative to the primary image so as to permit an observer to better view selected areas of the primary image while still viewing the entire primary image. The apparatus essentially comprises means for sampling x and y radar address data and related video data, means for independently and selectively scaling and offsetting the address data for a primary image memory and for a local zoom memory and means for selecting the areas of the primary image that are to be magnified. The selected areas of the primary image are displayed at a rate defined by a zoom magnification factor, scaled and offset independent of the primary image--but relative to the local zoom area, and displayed by extracting the data from the local zoom memory, rather than the primary image memory, as the display raster scans the areas of the screen where the zoom image is to be displayed.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: October 8, 1985
    Assignee: Sperry Corporation
    Inventors: LeRoy A. Prohofsky, David G. Hanson
  • Patent number: 4360912
    Abstract: A modular bus system for reporting the status of a plurality of geographically distributed data points. The data points may be independently located or grouped with the status of each being monitored by a processor which is coupled to the data points via a bus multiplexer, a plurality of buses and a plurality of single point and multiplexed transmitters. Each bus may be coupled to a plurality of the transmitters and may be configured open or closed loop. The system operates to simultaneously interrogate each of the buses via interrogation signals, which also supply the power to the transmitters, and produces a serial response signal containing the status information of the interrogated data points.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: November 23, 1982
    Assignee: Sperry Corporation
    Inventors: Louis C. Metz, Leroy A. Prohofsky