Patents Represented by Attorney, Agent or Law Firm William Nitkin
  • Pivotal gate trap for birdhouse
    Patent number: 5172651
    Abstract: A trap for a birdhouse, the moving parts of which are attachably and detachably integrated with bearing, aligning, and attaching features which are permanently part of the birdhouse entry hole panel, achieving reduction of trap structure and greater convenience of use. A pivoting gate is set above the entry hole within the birdhouse, and is retained there by a trip assembly. A bird entering the birdhouse, and alighting on the trigger extension of the rotatable trip assembly, caseus the trip assembly to disengage from the free end of the pivoting gate, which falls, blocking the entry hole ad trapping the bird within. The trap includes a structure to facilitate removal of the trapped bird. The trap has structure to allow an option of sensitive or stable trap settings.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: December 22, 1992
    Inventor: Joseph Finn
  • Roof opener and method for the venting of structures by fire fighters
    Patent number: 5165659
    Abstract: A roof-opening device for use by fire fighters to open a vent hole for the venting of gases from a burning building containing plywood panels attached to roofing beams, such device having a shaft with a handle at the top end thereof and a transversely positioned fulcrum member at the bottom end thereof and a pair of tines extending outwardly from the fulcrum member, the tines spaced apart from one another a distance to pass over on both sides of a roofing beam after the tines are passed through a slot cut in the roof generally perpendicular to such roofing beams such that the tines when manuevered downward through the slot on each side of the roofing beam can lift the plywood panel attached thereto in incremental steps as the fulcrum member is moved along the roofing beam to separate the plywood panel from the roofing beam and open up a vent hole.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: November 24, 1992
    Inventor: Leo R. L'Heureux
  • Pulse thruster
    Patent number: 5148672
    Abstract: A pulse thruster delivering electrically charged fuel attracted to a plate having an opposite charge where such fuel is ignited, causing an impulse force which process is repeated.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: September 22, 1992
    Inventor: Gregory R. Brotz
  • Razor blade carrier
    Patent number: 5148916
    Abstract: A razor blade carrier utilizing two hingeably attached strips of magnetically attractive material between which is sandwiched the razor blade to be carried.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: September 22, 1992
    Inventor: John N. Tillyer, Sr.
  • Metallized fiber/member structures and methods of producing same
    Patent number: 5128174
    Abstract: A structural material comprising a plurality of irregularly arranged members contacting one another with the points of contact forming junctions, the members being coated, which coating holds the members together to form a strong integral structural material and methods for producing same.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: July 7, 1992
    Inventor: Gregory R. Brotz
  • Adjustable friction grand piano action
    Patent number: 5125309
    Abstract: An adjustable friction grand piano hammer shank having bifurcated ends disposed on either side of a flange with a slot defined in each bifurcated end, a pivot pin receipt hole defined in each bifurcated end aligned with the slots, a strap having one end affixed to the bottom of one of the bifurcated portions extending therearound to form a loop around an adjustment screw with the strap's other end extending around the other bifurcated end to be affixed to the bottom of the other bifurcated end such that tightening the screw pulls on the strap and tightens together the portions of the bifurcated hammer shank ends above and below the slots to increase friction against the pivot pin and conversely, loosening the adjustment screw releases tension on the strap allowing the ends above and below the slot to be under less tension and reducing friction on the pivot pin.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: June 30, 1992
    Inventor: David C. Stanwood
  • Self-illuminating book
    Patent number: 5118138
    Abstract: A book having self-illuminating pages, each page utilizing transparent sheets sandwiched around an opaque sheet with indicia imprinted on the transparent sheets illuminated by a light source within the spine of the book passing light in through the edges of the transparent sheets facing the spine, such light passing through the planar body of the transparent sheets, illuminating the indicia imprinted thereon.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: June 2, 1992
    Inventor: Gregory R. Brotz
  • Constant current non-bridging section insulator
    Patent number: 5117072
    Abstract: A section insulator including a plurality of discrete runners with associated diodes preventing current from passing from a first circuit to a second circuit and vice versa of a power line having separate circuits to prevent arcing as an electric vehicle's current collector passes along the section insulator between the first and second circuits while the vehicle maintains a constant flow of electric current as it passes along the section insulator.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: May 26, 1992
    Inventor: Paul F. White
  • Hot gas device
    Patent number: 5104060
    Abstract: A closed-system hot gas device for flotation in the atmosphere having a rigid cap and flexible sides with an interior gas-heating element.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: April 14, 1992
    Inventor: Gregory R. Brotz
  • Structural sandwich panel with energy-absorbing material pierced by rigid rods
    Patent number: 5102723
    Abstract: A lightweight hybrid structural energy-absorbing panel having a plurality of layers of soft energy-absorbing material, such as Kevlar, disposed between facesheets with a plurality of rigid rod members extending between the facesheets through the layers of energy-absorbing material to structurally connect the facesheets, such panel to absorb the energy of ballistic projectiles.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: April 7, 1992
    Inventor: John N. Pepin
  • High-temperature rollers utilizing fluidized bed
    Patent number: 5101087
    Abstract: A mill roll having a pair of ceramic, hollow rollers with the chambers defined in each filled with a plurality of particles with spaces defined therebetween including means to enter fuel therein to be burned to heat the rollers to incandescent temperatures.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: March 31, 1992
    Inventor: Gregory R. Brotz
  • Environmental barrier
    Patent number: 5097886
    Abstract: An environmental barrier having a flexible panel member such as a screen panel for easy cleaning, said barrier attached to a window frame and having insert members on opposite sides of the panel member which are positioned in insert receipt channel members positioned on the window frame with resilient strips on the panel members being compressed and sealing the other edges of the panel member which is held in place by catch members and a window utilizing such panel member.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: March 24, 1992
    Inventor: Francisco Moyet-Ortiz
  • Melting point determination apparatus and method
    Patent number: 5092679
    Abstract: A device and method for determining the melting point of a material having light reflective properties by determining changes in the reflective properties of the material while under pressure as it is being heated.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: March 3, 1992
    Inventor: Gregory R. Brotz
  • Lingual attachment
    Patent number: 5078597
    Abstract: A lingual attachment having a base, one side of which is adhered to a tooth and the other side of which is affixed to a loop attachment member formed of wire with said loop defining an aperture therein for receipt of an orthodontic attachment member, such loop extending beyond the edge of the base and curving away therefrom.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: January 7, 1992
    Inventor: Sidney N. Caplin
  • Large sphere production method and product
    Patent number: 5073317
    Abstract: A method of creating hollow spheres and spheres produced according to such method, such method including suspending in a zero gravity environment a molten resin material mixed with a blowing agent which is caused to foam expanding into a spherical mass wherein the insides are hollowed out and the exterior sphere wall is solidified and the further process of creating adjoining spheres.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: December 17, 1991
    Inventor: Gregory R. Brotz
  • Workbench fuel tank
    Patent number: D324138
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: February 25, 1992
    Inventor: William Labonte
  • Dispensing bin
    Patent number: D326983
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: June 16, 1992
    Inventor: James N. Elmore
  • Golf putter head
    Patent number: D327929
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: July 14, 1992
    Inventors: David G. Nebbia, Richard A. McKenney
  • Leaching chamber
    Patent number: D329684
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: September 22, 1992
    Inventor: Terrance H. Gray
  • Buoyant swimming aid
    Patent number: D331613
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: December 8, 1992
    Inventor: David P. White