Patents by Inventor Mitchell H.

Mitchell H. 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: 5795400
    Abstract: In a metalworking process, an aqueous based degreasing solution which is used to clean manufactured parts, is recycled as a component of an aqueous based coolant fluid which is employed in the metalworking process used to fabricate the parts.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: August 18, 1998
    Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
  • Patent number: 5791439
    Abstract: A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with the rail. The second portion is integrally connected to the first portion such that the first portion and the second portion are one continuous piece. The second portion is in an angular relationship of less than 90.degree. with the first portion. A member for connecting a rail having a first rail flange and a second rail flange to a horizontal element of a ladder. The member comprises a first arm which connects to the first rail flange and the horizontal member. The member is also comprised of a second arm which connects to the second rail flange and the horizontal member. Additionally, the member comprises a central body which is integrally connected to the second arm and the first arm.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: August 11, 1998
    Assignee: Werner Co.
    Inventors: David E. Plotner, Edward E. Heald, Kevin L. McIntire, Richard P. Sulecki, Mitchell H. Hetrich, Frederick J. Bartnicki
  • Patent number: 5758745
    Abstract: An extension ladder comprises a base section comprising a first base rail, a second base rail in spaced relationship and in parallel with the first base rail, and at least a first base rung connected to the first base rail and the second base rail. The extension ladder also comprises a fly section slidably connected to the base section. The fly section comprises a first fly rail, a second fly rail in spaced relationship and in parallel with the first fly rail, at least a first fly rung connected to the first fly rail and the second fly rail, a first combination end cap/guide bracket connected to the bottom of the first fly rail, and a second combination end cap/guide bracket connected to the bottom of the second fly rail. Each end cap/guide bracket is one continuous piece. The first fly rail is adjacent to and in parallel with and in spaced relationship with said first base rail. The second fly rail is adjacent to and in parallel with and in spaced relationship with said second base rail.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: June 2, 1998
    Assignee: Werner Co.
    Inventors: Robert D. Beggs, Mitchell H. Hetrich, Christine A. Leipheimer, Marc A. Mabie
  • Patent number: 5711508
    Abstract: A quick connect fluid coupling equipped with a check valve and a service valve includes a housing that has a primary passage and an auxiliary passage arranged in a T-shape construction. The primary passage is provided with a check valve and an outlet end adapted to receive a male connector member in a locking engagement. The outlet end is arranged at 90.degree. with the inlet end of the primary passage. The auxiliary passage is equipped with a service valve adapted for receiving a fluid pressure detecting head at an outlet end and shares the same inlet end with the primary passage.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 27, 1998
    Assignee: ITT Automotive, Inc.
    Inventors: Mitchell H. Schreiber, Joseph S. Quaranta, Thomas E. Grooters, George Szabo, Richard H. Krentz
  • Patent number: 5686279
    Abstract: The invention provides a novel retroviral packaging system, in which retroviral packaging constructs and packagable vector transcripts are produced from high expression plasmids by transfection in human cells. High titers of recombinant retrovirus are produced in infected cells. The methods of the invention include the use of the novel retroviral constructs to transduce primary human cells, including T cells and human hematopoietic stem cells, with foreign genes by cocultivation at high efficiencies. The invention is useful for the rapid production of high viral supernatants, and to transduce with high efficiency cells that are refractory to transduction by conventional means.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: November 11, 1997
    Assignee: Cell Genesys, Inc.
    Inventors: Mitchell H. Finer, Margo R. Roberts, Thomas J. Dull, Krisztina M. Zsebo, Lu Qin, Deborah A. Farson
  • Patent number: 5636706
    Abstract: A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with the rail. The second portion is integrally connected to the first portion such that the first portion and the second portion are one continuous piece. The second portion is in an angular relationship of less than 90.degree. with the first portion. A member for connecting a rail having a first rail flange and a second rail flange to a horizontal element of a ladder. The member comprises a first arm which connects to the first rail flange and the horizontal member. The member is also comprised of a second arm which connects to the second rail flange and the horizontal member. Additionally, the member comprises a central body which is integrally connected to the second arm and the first arm.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: June 10, 1997
    Assignee: Werner Co.
    Inventors: David E. Plotner, Edward E. Heald, Richard P. Sulecki, Frederick J. Bartnicki, Mitchell H. Hetrich
  • Patent number: 5612028
    Abstract: This invention is based upon the application of amniotic cells--in particular, viable epithelial cells--to clinical procedures including the treatment of diseased or damaged tissues, e.g. in joints denuded of cartilage and vascular grafts. The invention also provides prosthetic devices which incorporate amniotic cells, and compositions for cosmetic use based upon amniotic cells or cell extracts. A further development uses amniotic cells in the form of a semi-permeable membrane, or coated onto, for example, microspheres; these structures act as filtration devices for the removal of toxic materials from, for example, blood or urine.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: March 18, 1997
    Assignee: Genethics Limited
    Inventors: Jonathan M. Sackier, Christopher B. Wood, Rajagopallan Krishnan, Gordon R. Wiggington, Douglas Mitchel H. Butler
  • Patent number: 5480081
    Abstract: A tile cutting apparatus includes a unit base for holding a tile and guide rods above and running parallel to the base. The guide rods carry a scoring/breaking assembly along a scoring and breaking path. The base includes, on its upper surface, a breaker spline inserted therein and extending along the scoring path. The base's upper surface also includes resilient pads supporting stainless steel rest plates on both sides of the breaker spline. The spline is oriented at a slight angle with respect to the surface of the rest plates to facilitate breaking. The scoring/breaking assembly includes a spring for applying constant pressure to a cutting wheel throughout the scoring operation. The scoring/breaking assembly is constructed such that a single handle allows the user to engage and disengage the cutting wheel, score the tile while maintaining a constant scoring pressure and break the tile. The apparatus includes a molded cover and base that minimize excess assembly and parts.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: January 2, 1996
    Assignee: Diamant Boart, Inc.
    Inventors: Kevin R. Wilson, Mitchell H. Babkes
  • Patent number: 5326234
    Abstract: A fluid driven pump includes an inlet, at least one expansion chamber for expanding upon introduction of fluid thereinto and contracting upon removal of fluid therefrom, a pumping chamber adjacent the expansion chamber for pumping in response to the expansion chamber's expansion and contraction, and an outlet for outletting pressurized fluid from the expansion chamber. A control system controls a flow of fluid from the inlet to the expansion chamber and a flow of pressurized fluid from the expansion chamber to the outlet. The outlet includes structure for gradually reducing the pressure of the fluid within a portion of the outlet to reduce blockage of the outlet due to freezing.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: July 5, 1994
    Assignee: Versa-Matic Tool, Inc.
    Inventors: William F. Versaw, Charles W. Taylor, Mitchell H. Jordan
  • Patent number: 5249878
    Abstract: A fiber-glass shear puck for connecting, and transferring load between abutting together is disclosed. The shear puck is in the shape of a cylindrical section with planar side walls and is easier to manufacture and has greater strength and load bearing capacity than existing fiber-glass shear pucks.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: October 5, 1993
    Inventor: Mitchell H. Frumkin
  • Patent number: 5149032
    Abstract: A universal cup holder (10) for use in vehicles comprising a base (12) having a pair of fixed upright arms (14,16); an adjustable unit (18) shiftably carried by the base (12), the adjustable unit (18) including a pair of upright arms (20,22) which are shiftable toward and away from the fixed arms (14,16) whereby to permit the creation of a cup receiving area (24) of differing sizes within the confines of the arms (14,16,20,22) with open spaces (26,28,30,32) being between all of the arms for receiving the handle, if present, on the container positioned within the cup receiving area (24). Incremental shifting of the unit (18) is permitted by a ratcheting pawl assembly (56) which, once the cup receiving area (24) has been defined may be locked by means (64) to retain the area (24) in its desired dimension.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: September 22, 1992
    Inventors: Stephen W. Jones, Mitchell H. Babkes, David D. McCormick
  • Patent number: 5063661
    Abstract: A method for fabricating a split compressor case for a gas turbine engine is described which comprises the steps of assembling the two axial sections of the split case along corresponding flanges of the sections with a flat shim disposed between corresponding flanges and machining this first assembly to preselected contour, determining the degree of ovalization of the first assembly at the engine operating temperature as a function of axial extent of the assembly, assembling the two axial sections with a pair of tapered shims each having thickness which varies along the length and width thereof in correspondence with the determination of ovalization of the first assembly as a function of axial extent whereby ovalization is substantially eliminated at the engine operating temperature in an assembly of the axial sections and tapered shims.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: November 12, 1991
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Mitchell H. Lindsay
  • Patent number: 4928491
    Abstract: A fuel metering device of simple design is provided, utilizing a unique cing air supply mechanism for cooling the feul supply spraybar and fuel metering valve of an aircraft or afterburner, such a mechanism also functioning as a piston position control agent, which in turn controls the fuel supply rate of fuel injected into the combustor. The spraybar is filled with fuel under pressure at all times, and a leaky sleeve prevents potential coking fuel due to the high combustor temperatures. Additionally, the piston for actuating the fuel metering valve requires no gasket, as cooling air is passed about its periphery, and a pair of cooling air supply valves control the pressure differential across the opposite faces of the piston to in turn selectively position the pintle of the fuel injection valve to change the flow rate of fuel into the combustor.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: May 29, 1990
    Assignee: United States of America as represented by the Secretary of Air Force
    Inventors: Mitchell H. Lindsay, Walter B. Kerr
  • Patent number: 4775801
    Abstract: A self contained electronic timer device for controlling the length of time that a peripheral device connected to the timer will operate. The timer has a novel way of use a capacitor bank with charge ladling so that a precision time can be selected with a minimal of cheap components.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: October 4, 1988
    Inventor: Mitchell H. Baum
  • Patent number: 4650521
    Abstract: A process for beneficiating a crude kaolinitic clay mineral to produce a clay filler for use in papermaking to improve the brightness, the color characteristics and the light scattering efficiency of the paper product. The crude kaolin clay is blunged with water containing a dispersing agent consisting of a blend of from about 20% to about 50% by weight of a water-soluble carbonate, about 20% to about 50% by weight of a water-soluble polyacrylate, and from 0% to about 60% by weight of a water-soluble anionic phosphate, to form a high solids fluid aqueous clay suspension having an acidic pH. This clay suspension is then fractionated to reduce the percentage of particles therein larger than 45 microns to not more than 0.2% by weight. The fractionated clay suspension is treated with an alkaline leaching solution containing a reducing agent effective in converting ferric ions to ferrous ions.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: March 17, 1987
    Assignee: Georgia Kaolin Company, Inc.
    Inventors: Mitchell H. Koppelman, Ingrid K. Migliorini
  • Patent number: D308351
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: June 5, 1990
    Assignee: Ottawa Truck Company
    Inventors: H. Dewey Fry, Harold E. King, Mitchell H. Babkes, Ben C. Baugh
  • Patent number: D328257
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: July 28, 1992
    Assignee: The Charles Machine Works, Inc.
    Inventors: Tommy K. Ormand, Mitchell H. Babkes, Benjamin C. Baugh, John W. Bieberdorf
  • Patent number: D328439
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: August 4, 1992
    Assignee: The Charles Machine Works, Inc.
    Inventors: Tommy K. Ormand, Mitchell H. Babkes, Benjamin C. Baugh, John W. Bieberdorf
  • Patent number: D331175
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: November 24, 1992
    Assignee: Stephen W. Jones
    Inventors: Stephen W. Jones, Mitchell H. Babkes, David D. McCormick
  • Patent number: D373568
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: September 10, 1996
    Assignee: Lowrance Electronics, Inc.
    Inventors: Mitchell H. Bloom, Richard J. Robbins