Patents by Inventor Stephen Hoffman

Stephen Hoffman 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: 5538320
    Abstract: An ottoman having a removable cover for storage within is disclosed. The cover is movable between a closed position, in which it resides above the walls of the ottoman, and an open position, in which the cover is generally vertically disposed, confronts the rear wall of the ottoman, and is adjacent the underlying floor. This configuration provides an ottoman that is much less susceptible to tipping in the open position.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 23, 1996
    Assignee: Ultra-Mek Corporation
    Inventors: D. Stephen Hoffman, Charles F. Lowe
  • Patent number: 5503086
    Abstract: Tables having a table top that is movable between a closed position atop the table base and an open position forward and above the table base are disclosed. Certain table embodiments have swivel means to permit rotation of the table top about an axis of rotation normal to the table surface. Others include mechanisms for moving the table surface between the open and the closed position that are sufficiently compact as to be suitable for use with a large majority of coffee table and end table styles.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: April 2, 1996
    Assignee: Ultra-Mek, Inc.
    Inventors: D. Stephen Hoffman, W. Clark Rogers
  • Patent number: 5466041
    Abstract: An ottoman having a removable cover for storage within is disclosed. The cover is movable between a closed position, in which it resides above the walls of the ottoman, and an open position, in which the cover is generally vertically disposed, confronts the rear wall of the ottoman, and is adjacent the underlying floor. This configuration provides an ottoman that is much less susceptible to tipping in the open position.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: November 14, 1995
    Assignee: Ultra-Mek, Inc.
    Inventors: D. Stephen Hoffman, Charles F. Lowe
  • Patent number: 5375907
    Abstract: A mechanism suitable for use with a retractable sofa table adapted for mounting the mechanism to a sofa frame, a lower pivot link pivotally interconnected to the mounting element, a table mounting bracket pivotally interconnected to the lower pivot link configured to be fixed to the table section, and an upper pivot link pivotally interconnected to the mounting element, and further pivotally interconnected to the table mounting bracket is disclosed. The upper pivot link includes between its pivots a bend disposed toward the lower pivot link which is configured to accept the profile of a sofa table.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: December 27, 1994
    Assignee: Ultra-Mek, Inc.
    Inventors: W. Clark Rogers, D. Stephen Hoffman
  • Patent number: 5374100
    Abstract: Disclosed is a mechanism for a seating unit headrest which permits adjustment of the headrest portion relative to the remainder of the mechanism to permit use of the mechanism with seating units of different heights. Also disclosed is a mechanism which includes a flange on the rear extension link of the headrest so that only one link of the mechanism per side is visible when the chair is viewed from side or rear elevation.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: December 20, 1994
    Assignee: Ultra-Mek, Inc.
    Inventors: W. Clark Rogers, D. Stephen Hoffman
  • Patent number: 5322344
    Abstract: A mechanism for use with a sofa table movable between a retracted closed position and a generally horizontal open position is disclosed. The mechanism is particularly suited for use with a sofa to which is attached a foldable bed. The mechanism comprises: a mounting link adapted for mounting the mechanism to a sofa frame; a lower pivot link pivotally interconnected to the mounting link; a table mounting bracket pivotally interconnected to the lower pivot link and adapted to be fixed to a sofa table; and an upper pivot link pivotally interconnected to the mounting link and further pivotally interconnected with the table mounting bracket. The lower pivot link includes a bend between its pivots disposed toward the upper pivot link within which the head portion of a foldable bed in its fold position can reside when the sofa table is in its closed position.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: June 21, 1994
    Assignee: Ultra-Mek
    Inventors: D. Stephen Hoffman, W. Clark Rogers
  • Patent number: 4502179
    Abstract: Method and system for collecting fume and/or waste particulate matter generated in a process used to surface treat, cut, gouge or join a workpiece by means of elevated temperature (e.g. electric arc).The system includes means to collect and quench the effluent (slag and/or fume) in a cooled nozzle coupled with means to separate solid particles and cooling fluid, in the case of a working environment including air and return cleansed air to the ambient environment.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: March 5, 1985
    Assignee: Arcair Company
    Inventors: William J. Coughlin, Perry J. Rieppel, Stephen A. Hoffman
  • Patent number: 4426566
    Abstract: Method and system for collecting fume and/or waste particulate matter generated in a process used to surface treat, cut, gouge or join a workpiece by means of elevated temperature (e.g. electric arc).The system includes means to collect and quench the effluent (slag and/or fume) in a cooled nozzle coupled with means to separate solid particles and cooling fluid, in the case of a working environment including air and return cleansed air to the ambient environment.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: January 17, 1984
    Assignee: Arcair Company
    Inventors: William J. Coughlin, Perry J. Rieppel, Stephen A. Hoffman
  • Patent number: 4388514
    Abstract: Method and system for collecting fume and/or waste particulate matter generated in a process used to surface treat, cut, gouge or join a workpiece by means of elevated temperature (e.g. electric arc). The system includes a nozzle for collecting the slag and fume. The nozzle is cooled by fluid. In addition there is a filter to separate particles and to return clean air to the ambient.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: June 14, 1983
    Assignee: Arcair Company
    Inventors: William J. Coughlin, Stephen A. Hoffman, Perry J. Rieppel
  • Patent number: 4260867
    Abstract: An automatic air-carbon arc cutting and gouging torch having a drive for the elongated electrode consisting of opposed wheels biased toward the electrode for frictional contact to drive the electrode by driving one of the wheels. Each wheel can be adjusted about a pivot point to compensate for curvature of the electrode, changes in diameter, or mis-aligned joints in successive electrodes. The torch includes an improved nozzle to conduct both current and process air to the electrode thus lowering the operating temperature of the torch.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: April 7, 1981
    Assignee: Arcair Company
    Inventors: William J. Coughlin, Stephen A. Hoffman, Jerry R. Hummel
  • Patent number: 4218605
    Abstract: A fixed head air-carbon arc cutting and gouging torch for use in a metal foundry for cleaning riser pads, sprues, fins and other excess or unwanted surface material or defects from castings. The torch is characterized by improved air flow means to reduce the required inlet air pressure, improved air valve means, better head angle and handle design for increased process efficiency.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: August 19, 1980
    Assignee: Arcair Company
    Inventors: Stephen A. Hoffman, Jerry R. Hummel
  • Patent number: D258193
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: February 10, 1981
    Assignee: Arcair Company
    Inventor: Stephen A. Hoffman