Patents Represented by Law Firm Oldham, Oldham & Wilson Company
  • Patent number: 5142430
    Abstract: The invention is directed to power line filter and surge protection circuit components and the circuits in which they are used to form a protective device for electrical equipment. The circuit components comprise wafers or disks of material having desired electrical properties such as varistor or capacitive characteristics. The disks are provided with electrode patterns on surfaces thereof which coact with apertures formed therein so as to electrically connect the components to electrical conductors of a system easily and effectively. The electrode patterns act in conjunction with one another to form common electrodes with the material interposed therebetween. The electrode patterns are optimized in the circuit components such that balanced protection is achieved over all electrical conductors. The components also eliminate the use of leads such that operating characteristics are improved significantly.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: August 25, 1992
    Inventor: Anthony A. Anthony
  • Patent number: 5130622
    Abstract: Method and device for controlling a side support in a powered seat, in which the side support device is controlled in its opening/closing motion in order that it is not moved repeatedly sensitive to each of acceleration being applied to the seat during driving on a curved road, by virtue of a standard checking process for determining an excessive acceleration, and then a short and long hold time system for holding the side support device in unmoved state against repeated or plural intermittent occurrences of accelerations being applied to the seat.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: July 14, 1992
    Assignee: Tachi-S Co., Ltd.
    Inventors: Kiyotaka Takizawa, Hiromitsu Ogasawara
  • Patent number: 5128382
    Abstract: Supercritical drying has distinct advantages in generating microcellular materials. The dimensional stability of the polymer is not affected on drying because the supercritical process does not go through the two phase path and therefore the effect of capillary forces is absent. This helps in maintaining the morphology of the final polymer structure and better control over cell size.Organic microcellular foams were prepared by polymerizing directly in a near-critical fluid and pursuing the supercritical drying in the same reactor. The critical variables are the choice of a diluent with a strong enough solvent power to stabilize the polymer matrix, but with a low enough critical temperature to permit critical point drying without damage to the polymer matrix.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: July 7, 1992
    Assignee: The University of Akron
    Inventors: Jarrell R. Elliott, Jr., Gokul Srinivasan, Manish Dhanuka, Ranjan Akhaury