Patents Represented by Law Firm Oltsch, Knoblock & Hall
  • Patent number: 4948846
    Abstract: The polymer buildup problem that may occur in the reactor where the inversion polymerization of vinylchloride is conducted can be effectively ameliorated by way of coating the internal surfaces of the reactor with a mixture comprising an expanding lattice clay, e.g., veegum, and a water-soluble suspending agent, e.g., polyacrylic acid.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: August 14, 1990
    Assignee: Korea Steel Chemical Co., Ltd.
    Inventors: Sam K. Lim, Jae G. Kim
  • Patent number: 4890683
    Abstract: A power steering apparatus in which a housing to contain a torque sensor for sensing seering torque, a small-sized motor for assisting steering, and a driving device for transmitting driving force of the motor to the steering shaft is made small-sized and disposed on the middle part of the steering shaft in the cab of the car, and, further, pressure angles of rack teeth engaging with a pinion shaft connected to the steering shaft reduce with the advance from the center of the toothed part of the rack to the end thereof so that steering assisting power is increased with the increase in the degree of steering angle.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: January 2, 1990
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Akinobu Matsuda, Masamitsu Sakai
  • Patent number: 4819085
    Abstract: A protective screen formed of a frame and a series of woven, non-metallic fibers. The screen is fitted over a display surface of a cathode ray tube (CRT) to reduce glare and/or to diffuse emanated radiation and static electricity. The frame includes outer non-metallic frame ports and a rigidifying metallic inner frame part.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: April 4, 1989
    Inventor: Paul M. Liang
  • Patent number: 4549543
    Abstract: A respirator with an improved exhaust valve and a flexible face piece which conforms to the shape of the face of the wearer. The respirator is compact and principally formed of transparent material to minimize attention to the wearer.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: October 29, 1985
    Inventor: William F. Moon
  • Patent number: 4373985
    Abstract: An adhesive binding machine which is for gluing the covers to the collated pages of the books and which includes a cutter for trimming the edges of the pages, a glue pot for applying glue to the cut edges, a nipper for pressing a cover to the glued edges of the pages and pinching it around the pages.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: February 15, 1983
    Assignee: F. P. Rosback Company
    Inventor: Major D. Glendening
  • Patent number: 4373267
    Abstract: An improvement to an instrument calibration block, which includes an arm member pivotally connected to the calibration block. The arm member when in its operative position positions the instrument to be tested so as to provide for a highly accurate calibration.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: February 15, 1983
    Inventor: Goodwin A. Lycan
  • Patent number: 4365855
    Abstract: A storage facility, such as a file or bookcase, which includes spaced parallel end plates supporting a brace part therebetween. A flexible cover extends between and is supported by the end plates so as to be rotatable entirely about the brace part.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: December 28, 1982
    Inventor: Edward H. Mark
  • Patent number: 4365673
    Abstract: A tiller head for a soil tilling device including a shaft which carries a number of blades which rotate with the shaft, and a drive for causing rotation of the shaft. A housing surrounds the drive. At least one of the blades is mounted for oscillatory movement where its ends shift laterally relative to the shaft. A camming device is carried by the housing and protrudes into the plane of rotation of the blade. The blade contacts the cam upon rotation of the shaft to urge the ends of the blade sequentially under the housing, thus tilling the soil under the housing.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: December 28, 1982
    Inventor: Arnold T. Faulkner
  • Patent number: 4361143
    Abstract: A splint for a hind leg of an animal such as a dog or cat. The splint is shaped to conform to the normal shape of the hind leg of an animal and serves to sustain the weight of the animal while walking without imposing stress upon the leg in the region of the break.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: November 30, 1982
    Inventor: Richard M. Nelson
  • Patent number: 4361247
    Abstract: A safety receptacle including a tank and a lid therefor. The lid is shiftable between its open and closed positions by a linkage system connected to the lid by a linkage connector. The linkage system includes a member which overlies the lid and is connected to the linkage connector by a heat sensitive actuator which releases the linkage connector when the lid is open in the presence of fire thereby allowing the lid to close by its own weight.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: November 30, 1982
    Inventor: Clarence E. Williams
  • Patent number: 4355508
    Abstract: A motor utilizing compressed air as the working fluid. Compressed air circulates from a first or high pressure tank through an air reactance member, then to pressure regulating member and to a second or intermediate pressure tank and the air reactance member. The drive shaft of the air reactance member delivers mechanical power. An air compressor is driven from the drive shaft and is employed to recharge or supplement pressure in each tank.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: October 26, 1982
    Assignee: U.S. Foam Mfg. Co., Inc.
    Inventors: Joseph F. Blenke, Stanley J. Blenke, Sr.
  • Patent number: 4353567
    Abstract: A steering and suspension system for the front wheel of a three-wheeled vehicle in which a pair of suspension frames pivotally support the front wheel and are in turn pivotally supported for variable movement upon rotation of the vehicle's steering wheel.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: October 12, 1982
    Inventor: Ross A. Weldy
  • Patent number: 4349951
    Abstract: A method of making a key ring bob from a shell casing and bullet head.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: September 21, 1982
    Inventor: Michael W. Wefler
  • Patent number: 4348054
    Abstract: An adjustable, tilting vehicle bed which is power actuated and is capable of having its position selectively altered between positions in which it is flat, raised, tilted for dumping a load and tilted to provide a loading ramp.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: September 7, 1982
    Inventors: Gary L. Shonkwiler, Forest M. Shonkwiler
  • Patent number: D266052
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: September 7, 1982
    Inventor: David C. Moser
  • Patent number: D266156
    Type: Grant
    Filed: June 3, 1980
    Date of Patent: September 14, 1982
    Inventors: Arnold G. Ebner, Leonard W. Kline, Rudolph C. Yakym
  • Patent number: D267261
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: December 14, 1982
    Inventor: Casimer J. Pataluch
  • Patent number: D267483
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: January 4, 1983
    Inventor: Michael W. Wefler
  • Patent number: D267487
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: January 4, 1983
    Inventor: Robert A. Ragsdale
  • Patent number: D268730
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: April 26, 1983
    Inventor: Wayne E. Daub