Patents Assigned to Duro Dyne Corporation
  • Patent number: 5535925
    Abstract: A caulk dispenser device for use with conventional caulking cartridges and powered by expanding refrigerant liquid is disclosed. Expanding gases are released into a chamber defined in part by a housing and in part by the caulk cartridge, the plug or piston within the cartridge forming a boundary of the chamber. Discharge of the gas directly against the piston is avoided by the interposition of a deflector surface within the housing reducing the tendency of the caulk to increase in viscosity and bond to the walls of the cartridge or to tilt relative to the cartridge. The propellant liquid-gas material incorporates an increment (e.g. 5%) of perflurocarbon or like compound liquid at ambient temperatures which minimizes the cooling effect resulting from discharge of the gas. Preferably, the device is fabricated of material having a low thermal conductivity such as polymeric material to thereby reduce the cooling effect on the canister of propellant with resultant loss of pressure.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 16, 1996
    Assignee: Duro Dyne Corporation
    Inventors: Milton Hinden, John Lyons
  • Patent number: 5518215
    Abstract: An insulation support pin extender is disclosed for engaging insulation batts of thickness greater than can be accommodated by known support pins. The extender comprises a tubular oval shank adapted to encompass the tine of a mounted support pin, the extender including a projecting shaft defining an extension of the shank. The shaft includes a rib to render same resistant to bending, except at positions in registry with paired recesses formed at the sides of the shaft.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: May 21, 1996
    Assignee: Duro Dyne Corporation
    Inventor: John E. Lyons
  • Patent number: 5482783
    Abstract: An apparatus and method of forming air turning assemblies is disclosed along with a novel vane supporting rail structure for use therewith. The apparatus holds a pair of rails in spaced parallel relation at a clinching station at which the edges of a vane may be engaged in opposed slotted protuberances in the rails. The spacing of the rails may be increased at the station against a yieldable biasing force, the station including a deforming mechanism for deflecting the vane edges to lock the vanes to the rails. The rails include cam surfaces leading to the vane receiving slots and blocking walls at the trailing ends of the slots to facilitate introducing the vane edges into the slots.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: January 9, 1996
    Assignee: Duro Dyne Corporation
    Inventors: John E. Lyons, Joseph Magrane
  • Patent number: 5325964
    Abstract: An article of manufacture comprises an elongate strip or reel of separable metallic segments having pressure sensitive backing tape secured thereto. The segments include a cutout defining an elongate tine bendable to right angles to the main body portion of the segment. The tines include a longitudinally directed reenforcing rib, the side edges of the tine and the rib being formed with aligned notches enabling the fine to be bent at right angles in registry with the notches. A washer is provided which may be sleeved over the tine, the washer including an aperture configured such that when the washer is mounted over the tine and rotated, the washer will be locked to the tine.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: July 5, 1994
    Assignee: Duro Dyne Corporation
    Inventor: John E. Lyons
  • Patent number: 5233752
    Abstract: A portable apparatus for forming an air turning assembly comprises upper and lower rail retaining tracks which are yieldably biased toward each other. Vane distorting chisels are mounted in spaced relation below the lower track and a staking assembly, movable longitudinally so as to sequentially register with the chisels, is mounted above the upper track. The staking assembly is shiftable toward the fixed chisels beneath the lower track whereby edges of a vane temporarily mounted between the rails may be staked in a single operation to both rails, downward movement of the staking chisels being effected to deform portions of the vane above the upper rail, such downward movement also functioning bodily to shift the rails and vane downwardly, such the portions of the vane below the lower rail are deformed by the chisels below the lower rail.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 10, 1993
    Assignee: Duro Dyne Corporation
    Inventor: John E. Lyons
  • Patent number: 5181314
    Abstract: An apparatus and method of forming air turning assemblies is disclosed along with a novel vane supporting rail structure for use therewith. The apparatus holds a pair of rails in spaced parallel relation at a clinching station at which the edges of a vane may be engaged in opposed slotted protuberances in the rails. The spacing of the rails may be increased at the station against a yieldable biasing force, the station including a deforming mechanism for deflecting the vane edges to lock the vanes to the rails. The rails include cam surfaces leading to the vane receiving slots and blocking walls at the trailing ends of the slots to facilitate introducing the vane edges into the slots.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: January 26, 1993
    Assignee: Duro Dyne Corporation
    Inventors: John E. Lyons, Joseph Magrane
  • Patent number: 5067278
    Abstract: A readily demountable door assembly for sealing an aperture in a duct comprises a door member having an inwardly directed ramp or cam which lies within the duct and is inclined outwardly toward the duct surface. A clamp is adapted to be mounted adjacent the aperture of the duct at a position diametrically opposite the ramp. The clamp engages the door and shifts the same in the direction of the ramp, which movement presses the flange of the door tightly against the duct surface, the clamp including portions which overlie the door at positions remote from the ramp to urge such remotely disposed portions of the door against the duct surface.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: November 26, 1991
    Assignee: Duro Dyne Corporation
    Inventor: John Lyons
  • Patent number: 4900064
    Abstract: A connector member for coupling flexible cylindrical tubular duct to the wall of a fibrous duct is comprised of a pair of parallel metal strips, the opposed marginal edges of which are connected to a flexible central strip. A clamp and a slip joint are provided on the respective strips for maintaining the metal strips in a cylindrical configuration, with the ends of the strips overlapping. One said strip including outwardly facing gaskets disposed at opposite sides of the wall of the fiber duct, the other strip including an inwardly facing gasket clamped about the flexible cylindrical ducting.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: February 13, 1990
    Assignee: Duro Dyne Corporation
    Inventors: John Lyons, Paul K. Thompson
  • Patent number: 4861631
    Abstract: An improved flexible connector material is comprised of a pair of metal strips between which is mounted a flattened tubular configuration including upper and lower flexible sheets or layers encompassing a compressible glass wool batt. The insulation is bonded preferably to the lower layer of a pair of spaced flexible glue lines whereby the tendency of the insulation to become compressed and change in configuration is overcome.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: August 29, 1989
    Assignee: Duro Dyne Corporation
    Inventors: Milton Hinden, John Lyons
  • Patent number: 4600345
    Abstract: An impact fastener especially adapted for holding batts of insulation to sheet metal is disclosed. A characterizing feature of the fastener resides in the provision of three stabilizing legs which are configured to engage the surface of the receiving metal after partial penetration and to deform in accordance with the depth of penetration, providing in all instances a stabilizing effect.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: July 15, 1986
    Assignee: Duro-Dyne Corporation
    Inventors: Milton Hinden, Charles Giannone
  • Patent number: 4541146
    Abstract: An integral and inexpensive tying or bundling clamp device is disclosed, together with the method of applying the same. The clamp comprises a metal band having at one end an anchor defined by a series of convolutions of the band wrapped to provide a passage for the free end of the band. The device is applied by encircling an article and passing the free end through the passage and tightening the band while applying a reacting pressure against the convolutions, whereby the same are caused to constrict and frictionally to retain the band in the anchor.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: September 17, 1985
    Assignee: Duro Dyne Corporation
    Inventor: Charles Giannone
  • Patent number: 4438314
    Abstract: The present invention is directed to an apparatus for attaching welding pins to sheet metal, and particularly for attaching by a resistance welding procedure pins for retaining insulating material to a duct substrate. A characterizing feature of the invention resides in the provision of a fixed hopper member for receiving bulk quantities of weld pins and a carriage movable relative to the hopper for enabling the pins to be applied to the duct at spaced points, the combination including means for discharging a plurality of oriented pins from the bulk supply hopper to the movable carriage responsive to predetermined movement of the carriage.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: March 20, 1984
    Assignee: Duro-Dyne Corporation
    Inventor: Charles Giannone
  • Patent number: 4429209
    Abstract: The present invention is directed to an improved resistance welding pin especially adapted for fastening of batts of insulating material to metallic air conduits, such as the ducts of air conditioning and heating systems. The pin is characterized by a novel corrugated shank portion extending between the head of the pin and the sharpened tip which functions, inter alia, to dissipate the heat generated in the shank during welding, with a plurality of attendant advantages.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: January 31, 1984
    Assignee: Duro Dyne Corporation
    Inventor: Milton Hinden
  • Patent number: 4372627
    Abstract: The invention relates to a bearing assembly adapted to be connected to a damper blade, and particularly a damper blade intended to be disposed within the duct of an air conduit used in a heating or cooling system. The assembly is characterized in that the bearing pin is supplied in a first position, from which it may be partially retracted, and after installation may be shifted to an extended position from which, if necessary, it may likewise be retracted, making it particularly suitable for installations wherein the duct interior is provided with an insulating lining.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: February 8, 1983
    Assignee: Duro Dyne Corporation
    Inventor: Milton Hinden
  • Patent number: 4264995
    Abstract: The present invention is directed to a method of manufacturing a support fixture for securing thermal insulation, such as glass wool batts and the like, to air conduit ducts forming parts of heating and air conditioning systems. The device comprises a metal pin weldingly connected to a planar sheet metal blank, the rear surface of the blank carrying a double faced adhesive tape, the rear surface of which is adapted to be adhesively connected to a duct. In accordance with the method of making the fixture, an improved adhesive connection is obtained between the sheet metal member and the adhesive tape by applying the tape to the blank while the blank is hot as a result of effecting the welded connection between the blank and the pin.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: May 5, 1981
    Assignee: Duro Dyne Corporation
    Inventor: Milton Hinden
  • Patent number: 4183557
    Abstract: This invention relates to a flexible connector material of the type used in air circulating systems, such as air conditioning and warm air systems, to span the space between adjacent ducts, whereby vibration in one duct is not transmitted to the other and there is no air loss at the interface. More particularly, the invention relates to a connector material of the type described wherein thermal losses are minimized at the noted interface.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: January 15, 1980
    Assignee: Duro Dyne Corporation
    Inventor: Milton Hinden
  • Patent number: 4031350
    Abstract: The present invention is directed to an improved integral sheet metal welding pin particularly adapted for use with automatic welding machines of the type in which pins are stored in random fashion in a hopper. The pin incorporates a shank adapted to be attached by resistance welding to sheet metal ducting, and includes an enlarged head spaced from the duct and adapted to press insulation against the duct. The improved pin is characterized by an elongated tongue portion struck from the head of the pin and lying in parallel spaced relation to the shank, the configuration of the tongue and its location being such as to prevent stacking or nesting of weld pins in a manner which would preclude their being separated for automatic feeding, the tongue also serving as a stop in the course of welding, to preclude over-melting of the shank or damaging of the insulation.
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: June 21, 1977
    Assignee: Duro-Dyne Corporation
    Inventors: Milton Hinden, Charles Giannone
  • Patent number: D300778
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: April 18, 1989
    Assignee: Duro-Dyne Corporation
    Inventor: Charles Giannone
  • Patent number: D303070
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: August 29, 1989
    Assignee: Duro Dyne Corporation
    Inventors: Milton Hinden, Charles Giannone
  • Patent number: D303914
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: October 10, 1989
    Assignee: Duro-Dyne Corporation
    Inventors: Milton Hinden, John Lyons