Patents by Inventor Frederick J. Pufpaff

Frederick J. Pufpaff 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: 5560695
    Abstract: A venting device for use in venting a hollow structure such as a refrigerator door to be filled with an expanding foamed-in-place insulation material has tapered apertures to allow gas to escape while retaining the insulation material. The venting device can include a chamber for receiving a hinge pin or a shelf end.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: October 1, 1996
    Assignee: Southco, Inc.
    Inventor: Frederick J. Pufpaff
  • Patent number: 4823978
    Abstract: A plastic resin hole plug to fill a hole in a flat thin panel comprises a one-piece unitary injection-molded plastic member having a top closure wall whose bottom surface has a flat edge which rests on the panel. In one embodiment the plug has a cruciform shank portion which extends from the top closure wall portion, the shank portion having a plurality of ribs which retain the plug in the hole. In another embodiment the shank has an elongated hollow cavity and a flat-sided chisel-like point.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: April 25, 1989
    Assignee: Simmons Fastener Corporation
    Inventor: Frederick J. Pufpaff
  • Patent number: 4755090
    Abstract: A fastener, particularly adapted to retain a screw, comprises a sheet metal body member. A double-sided adhesive tape may be adhered to one face of the metal member. The metal member is a unitary member having a top flexible leaf portion with a screw impression to receive and retain a screw, a "U" shaped connecting portion, a bottom plate portion having a clearance hole to guide the screw, and a cone-shaped ring-like raised portion around the clearance hole. The cone portion may telescope into the screw impression dome to reinforce the dome. Three tabs project from the bottom face of the bottom leaf and project through the tape.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: July 5, 1988
    Assignee: Simmons Fastener Corporation
    Inventors: Frederick J. Macfee, Jr., Frederick J. Pufpaff
  • Patent number: 4746151
    Abstract: A metal industrial fastener comprises a keeper plate having a hook-like keeper lip attached to one panel and a turn hasp member attached to another panel, which turn member may be recessed in a dish. The turn member has a spring which spring-loads a spring-back hook member, a base member fixed in a dish to a panel, a slide member which telescopically slides in the base member, and a turning means to rotate an eccentric rivet which cam-operates the slide member.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: May 24, 1988
    Assignee: Simmons Fastener Corporation
    Inventors: Cuyler Hoen, Frederick J. Pufpaff
  • Patent number: 4727629
    Abstract: A fastener removably clamps the edges of two panels each having a hole therethrough. The fastener includes a hinge pin, about which the fastener body pivots. To clamp the panels, the hinge pin is extended through the holes in both panels to align the panels and then the fastener body is pivoted so that its top flange portion lies on one panel and its bottom flange portion lies on the other panel, thereby clamping the panels between the two flange portions of the fastener.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: March 1, 1988
    Assignee: Simmons Fastener Corporation
    Inventors: Cuyler Hoen, Frederick J. Pufpaff
  • Patent number: 4647263
    Abstract: A nut plate fastener, particularly adapted to retain a screw and to seal a hole in a panel having foamed-in-place insulation, comprises a sheet metal body member and a double-sided adhesive tape adhered to one face of the metal member. The metal member is a unitary member having a top leaf with a screw impression to receive and retain a screw, a "U" shaped connecting portion, and a bottom leaf having a clearance hole to guide the screw. As a safety feature, when there is high torque on the screw, a ring-like raised portion around the clearance hole may telescope into the screw impression dome to reinforce the dome. Three tabs project from the bottom face of the bottom leaf and project through the tape.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: March 3, 1987
    Assignee: Simmons Fastener Corporation
    Inventors: Frederick J. Macfee, Jr., Frederick J. Pufpaff
  • Patent number: 4583654
    Abstract: A plastic resin hole plug to fill a hole in a flat thin panel comprises a one-piece unitary injection-molded plastic member having a top dome closure wall whose bottom surface has a flat ledge which rests on the panel and an undercut ring. The plug has a tubular shank portion which extends from the top closure wall portion and whose outer face retains the plug in the hole. The shank's outer face has a first circumferential band canted inwardly and a second circumferential band joined thereto which is canted outwardly. At least one, and preferably two, side flats are formed on the shank portion, which flats flex inward when the plug is inserted into the hole.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: April 22, 1986
    Assignee: Simmons Fastener Corporation
    Inventors: Frederick J. Pufpaff, John M. Maloney
  • Patent number: 4522436
    Abstract: A fastener to removably secure two panels consists of a spring-loaded toggle latch (catch unit) on one panel and a keeper plate (strike) with a keeper lip on the other panel. The toggle latch comprises a pivot bracket with a flat base plate and opposite upstanding side ears, a pivotable operating lever (handle) and a pivotable hasp member (draw bar) having a downwardly turned lip at its free end to engage the keeper lip. The three members of the toggle latch are solely joined by left and right single-turn coiled torsion springs which spring-load the hasp member. In one embodiment the flat base plate of the pivot bracket has two openings, each with a series of staggered indentations forming pairs of indentations, which indented pairs are differently spaced from the edge of its panel, to permit adjustable mounting of the pivot bracket on its panel.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: June 11, 1985
    Assignee: Simmons Fastener Corporation
    Inventors: Cuyler Hoen, Frederick J. Pufpaff
  • Patent number: 4212560
    Abstract: An industrial fastener, which may be secured or released by a one-quarter turn, includes a rotatable bolt. The bolt has a cam face on the underside of its head, a shank having opposite flats and a screw threaded end portion. A turning means, such as a handle member, slides on the bolt and has matching opposite flats to turn the bolt. The fastener also includes a spring which detents the handle member and an adjustable nut.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: July 15, 1980
    Assignee: Simmons Fastener Corporation
    Inventors: Frederick J. Pufpaff, Cuyler Hoen
  • Patent number: RE31106
    Abstract: An industrial fastener, which may be secured or released by a one-quarter turn, includes a rotatable bolt. The bolt has a cam face on the underside of its head, a shank having opposite flats and a screw threaded end portion. A turning means, such as a handle member, slides on the bolt and has matching opposite flats to turn the bolt. The fastener also includes a spring which detents the handle member and an adjustable nut.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: December 21, 1982
    Assignee: Simmons Fastener Corporation
    Inventors: Frederick J. Pufpaff, Cuyler Hoen