Concentrated Heated Air Stream (i.e., Blast) Patents (Class 392/379)
  • Patent number: 5111528
    Abstract: A shrinking frame for foil wrap or hoods to be shrink wrapped on a stack of goods has a shaft-like configuration of the path for producing hot air within the limbs of the frame between the inlet opening and an outlet slit. The resistance heating rods are located in at least one and preferably both of the segments of the U-shaped flow passage.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: May 5, 1992
    Assignee: MSK-Verpackungs-Systems Gesellschaft mit beschrankter Haftung
    Inventors: Reiner W. Hannen, Norbert P. Vermeulen, Josef Schulze-Frenking
  • Patent number: 5111527
    Abstract: A forced gas electric heater has a serpentine heating element in series with a preheat coil. Gas to be heated first flows through the preheat coil before flowing through the serpentine heating element. A thermistor is disposed between two adjacent turns of the preheat coil. The thermistor controls the "on" time of a solid state power control device which is in series with the preheat coil and the serpentine heating element.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: May 5, 1992
    Assignee: GTE Products Corporation
    Inventors: Johathan B. Arold, Joan L. Mishou, Charles R. Parent, Joseph P. Stark, Edward A. Webb
  • Patent number: 5097754
    Abstract: A closed-loop air cooking system for use in a vending machine that vends french fried potatoes and the like, including: a) a closed-loop air duct assembly; b) a cooking basket mounted for rotation within the air duct assembly; c) a fan for forcing air through the air duct assembly; d) a separator for removing entrained particulates from the air stream within the air duct assembly; and e) a heater for heating air that circulates within the air duct assembly. In addition, the cooking system includes a separator for removing oil and other particulates from the closed-loop air stream.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: March 24, 1992
    Assignee: Ore-Ida Foods, Inc.
    Inventors: Wayne L. Covington, Glen R. Green
  • Patent number: 5084984
    Abstract: A clamshell housing encloses a nail dryer. The housing includes a cover pivotally connected to a base. The cover may be opened by applying leverage to it and exposing a nail drying zone. The cover may be pivotally closed to form a compact package when not in use. A nail drying fan is actuated when the cover is opened thus closing an electrical circuit. The electrical connection is interrupted when the cover is tipped into a closed position.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: February 4, 1992
    Assignee: Yves Saint Laurent Parfums
    Inventors: Christian Duchoud, Serge Briee
  • Patent number: 5057672
    Abstract: An improved radiator suitable for use with internal combustion engines in motor vehicles is provided. The invention converts conventional radiators, which ordinarilly provide heat to passenger compartments through exchange of heat built up in the coolant, into electrically operable radiators with electric resistance heating elements, commonly PTC resistors. The PTC resistors have self, temperature-regulating properties which prevent over heating. Additionally, sheet metal strips in heat-transmitting contact with the PTC resistors and spring elements acting on the sheet metal strips provide an efficient heat transfer mechanism whereby heat from the resistors is transferred without the self-regulating resistors constantly shutting off.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: October 15, 1991
    Assignee: Apparte und Heizwiderstande GmbH
    Inventors: Franz Bohlender, Josef David
  • Patent number: 5054211
    Abstract: An attachment for a hair dryer, to be secured to the outlet end of the hair dryer, to cause air coming from the hair dryer to orbit and diverge, includes a tubular housing having air inlet and air outlet ends, means associated with the air inlet end to secure the housing to the air outlet of a hair dryer, an air deflector within the housing proximate to the air outlet end, the air deflector being mounted for rotation about an axis parallel to the longitudinal axis of the housing, the deflector including opposed angle vanes on the end thereof nearest the air inlet and having an angled deflector on the end thereof nearest the air outlet, so that air from the dryer passing through the housing will flow past the opposed angled vanes and cause the air deflector to rotate and the air will thereafter be orbitally deflected to one side by the angled deflector. Alternatively, the air deflector can be mounted in a hair dryer itself near the air outlet end.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: October 8, 1991
    Inventor: Burt H. Shulman
  • Patent number: 5042571
    Abstract: A variable parameter heater for applying heat in a predetermined profile to a work surface. The heater has a plurality of elongated members which are interconnected to form a frame. Elongated members are slidingly adjustable to provide the intended heat profile. Each elongated member contains first and second rows of apertures. Heated air is delivered to the work surface past selectively energized heating elements disposed in the first row of apertures. Cool air where required is delivered to the work surface through the second row of apertures. The heater may include a vacuum probe for depositing or removing components relative to the work surface. The vacuum probe may also direct cool air to the work surface. Mirrors may be mounted upon elongated members to provide enhanced viewing of the work surface. In case of disablement, elongated members are individually removeble for repair or replacement.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: August 27, 1991
    Assignee: Sierra Research and Technology, Inc.
    Inventor: William F. Drislane
  • Patent number: 5028763
    Abstract: A pair of plates of good heat and electric conductivity have a plurality of openings and a plurality of foraminous areas. The plates are secured to one another with the openings and foraminous areas of the two plates aligned with one another. The plates are connected to terminals of opposite electrical polarity and are insulated from one another. A plurality of perforated PTC thermistor elements are clamped between the plates and in electrical contact therewith. Each element is aligned with openings in the plates. The openings and foraminous areas are so disposed that the openings associated with the elements are surrounded on at least two sides by foraminous areas.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: July 2, 1991
    Inventor: Chang Chung-Tai
  • Patent number: 5023925
    Abstract: In a hot air hand welding device having a plastic housing (1,3,6) which forms a rod-like grip portion (1) provided with air inlet openings and in which a commutator motor (18) is secured for the drive of a blower wheel (23) that is surrounded by a section (3) of the housing (1,3,6) that adjoins the grip (1) and has a larger diameter, the blower wheel (23) is arranged adjacent to the commutator (20) of the commutator motor (18). In addition the commutator (20) as well as the carbon brushes that contact it, together with the associated brush holders (21), are arranged in the section (3) of the housing surrounding the blower wheel (23).
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: June 11, 1991
    Assignee: Zinser Schweisstechnik GmbH & Co.
    Inventors: Gunther Goll, Peter Vater, Siegfried Keusch, Gunter Kratz
  • Patent number: 5014339
    Abstract: A device for heating a flow of substantially pure gas flowing in a flow direction to temperatures above about 600.degree. C. is disclosed. The device includes a heat exchanger having a heat exchanger surface extending transversely to the flow direction whereby the substantially pure gas flows across the heat exchanger surface. The heat exchanger is made of a ceramic material for heating the pure gas without contaminating the gas flow. An infrared radiation source arranged outside of the flow of pure gas irradiates the heat exchanger surface.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: May 7, 1991
    Assignee: Deutsche Forschungsanstalt fur Luft- und Raumfahrt e.V.
    Inventor: Peter Tattermusch