Patents Represented by Attorney Robert C. Podwil

Find this attorney in the Justia Lawyer Directory

  • Door closer with assist or door operating features
    Patent number: 4339843
    Abstract: Hydraulic door closer apparatus has associated with it means for counter-balancing the bias of a return spring, to assist in opening the door by reducing the force needed to open it, or to open the door by over-balancing the bias of the return spring. Remotely manually operable means may initiate opening of the door.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: July 20, 1982
    Assignee: Reading-Dorma Closer Corporation
    Inventor: L. Nelson Burnett, Jr.
  • Door closer with assist or door operating features
    Patent number: 4222147
    Abstract: Hydraulic door closer apparatus includes means for counter-balancing the bias of a return spring, to either assist in opening the door by reducing the force needed to open, or, in an alternative embodiment and mode of operation, to open the door by over-balancing the bias of the return spring. In the latter mode, a remotely manually operable switch, such as, for example, a so-called palm button, may initiate opening the door.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: September 16, 1980
    Assignee: Reading Door Closer Corp.
    Inventor: L. Nelson Burnett, Jr.
  • Temperature compensating hydraulic door closer
    Patent number: 4148111
    Abstract: Hydraulic door closer apparatus comprises a cylinder, a piston disposed in the cylinder, linkage means coupled to the piston for transmitting forces between the piston and a door, and a hydraulic circuit for controlling movement of the piston in the cylinder. A temprature responsive control element is provided in the hydraulic circuit to alter the characteristics of the circuit in response to changes in ambient temperature or temperature of the fluid within the closer.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: April 10, 1979
    Assignee: Reading Door Closer Corp.
    Inventor: Sideny Lieberman
  • Soffit plate and limit stop for use with hydraulic door closer
    Patent number: 4069546
    Abstract: A resilient element coupled to a soffit plate provides a means for first resiliently and then non-resiliently limiting movement of a control arm associated with a hydraulic door closer, to thereby cushion and limit movement of a door to its extreme open position.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: January 24, 1978
    Assignee: Reading Door Closer Corporation
    Inventor: Stanley B. Reichlin
  • Torque control devices of the viscous shear type and components therefor
    Patent number: 4049100
    Abstract: The pressure plate of a torque control device of the viscous shear type includes a plurality of circumferentially spaced fluid transfer ports extending between faces of the plates, the ports comprising blind slot portions opening on one face of the plate and indented portions in the other face of the plate in fluid communication with the blind slot portions. A method is disclosed for making such slots.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: September 20, 1977
    Assignee: L G Industries, Incorporated
    Inventor: William P. Davis
  • Portable and collapsible bathroom-type scale
    Patent number: 4043413
    Abstract: A portable and collapsible scale includes a base plate, a weighing unit removably associated with the base plate, and an upper or platform plate removably associated with the weighing unit. A user may stand on the upper plate and view a weight read-out provided by the weighing unit.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: August 23, 1977
    Inventor: Susan M. Schaenen
  • Gift package containing message bearing unit and useful article in association therewith
    Patent number: 4043449
    Abstract: Useful articles, such as earrings or other articles of personal adornment, are functionally and aesthetically integrated with a greeting card-like message bearing unit, and the unit and articles are disposed within a container, the dimensions of the container corresponding to certain dimensions of the unit and the articles.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: August 23, 1977
    Assignee: Mida Mfg. Inc.
    Inventor: Michael Love
  • Piston assembly for door closer
    Patent number: 4019220
    Abstract: Hydraulic door closer apparatus comprises a cylinder and an elongated piston disposed in the cylinder, the piston being made of relatively easily machined material, but having associated with it a rack of harder, wear and impact-resistant material for transmitting forces and motion to and from the piston.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: April 26, 1977
    Assignee: Reading Door Closer Corporation
    Inventor: Sidney Lieberman
  • Work guiding and trimming apparatus for sewing machines
    Patent number: 4008672
    Abstract: An abutment associated with the bed of a sewing machine cooperates with a work holder to guide the work during a sewing operation, and a trimming blade operates in conjunction with the abutment to simultaneously trim the work adjacent to the zone in which stitches are made without interfering with the work holder or guidance of the work.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 22, 1977
    Assignee: Queen Casuals, Inc.
    Inventor: Nicholas Cianciotti
  • Remote reading infrared thermometer
    Patent number: 4005605
    Abstract: A radiation detector senses ambient radiation within the cavity of an instrument, and then radiation from a target object, the sensed radiation from within the cavity following substantially the same optical path within the instrument as the radiation from the target object, thus minimizing error due to internal cavity temperature and other disturbances during measurement of radiation from the target object.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: February 1, 1977
    Assignee: Mikron Instrument Company, Inc.
    Inventor: Donald S. Michael
  • Water slide or similar article
    Patent number: D256827
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: September 9, 1980
    Assignee: S. B. Ramagosa & Sons
    Inventor: John C. Allen, 3rd
  • Water slide or similar article
    Patent number: D256828
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: September 9, 1980
    Assignee: S. B. Ramagosa & Sons
    Inventor: John C. Allen, 3rd
  • Water slide or similar article
    Patent number: D256940
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: September 16, 1980
    Assignee: S. B. Ramagosa & Sons
    Inventor: John C. Allen, 3rd