With Gas Or Vapor Flow For Contact Patents (Class 34/97)
  • 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: 5013891
    Abstract: A personal appliance, such as hair dryer, with enhanced shock hazard protection, and including a housing formed of two complementary and interfitting sections, electrical units mounted within the housing, a power cord leading to the housing, an IDCI on the power cord, and a sensing wire associated with the power cord leading from said housing to said IDCI, electroconductive coating on the internal surfaces of the housing sections, with the coating being electrically connected to the sensor wire, whereby water contacting the coating and the power cord or any of the electrical units will cause a voltage in the sensing wire and thereby trigger the IDCI.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: May 7, 1991
    Assignee: Conair Corporation
    Inventor: Richard E. Shoemaker
  • Patent number: 4999928
    Abstract: An air concentrating nozzle is provided in a flat patterned body manufactured of light weight plastic or paper. The patterned body can be rolled into a cone and maintained cone shaped by inherent fasteners holding the edges together. In cone shape, a small opening at a first end concentrates air discharge and a large opening at a second end adapts the cone as a universal fitting for attachment over a majority of barrels used on home type hand-held hair dryers. An elastic loop attached to the air concentration nozzle fits around the hair dryer motor housing holding the air concentration nozzle in place.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: March 19, 1991
    Inventor: Michel C. Tozier
  • Patent number: 4995171
    Abstract: A gas combustion type dryer is provided wherein a liquefied gas is ignited by electric discharge and combusted to forcibly blow out heated air by a fan, while eliminating adverse effects of remaining heat after the stop of fan operation and maintaining the gas pressure constant. A temperature controller is provided together with a combustor within a blowing barrel of a dryer main body, and a pressure regulator is provided together with a liquefied gas tank within a handle. The pressure regulator is coupled to the combustor with the temperature controller interposed therebetween.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: February 26, 1991
    Assignee: Prince Industrial Development Co., Ltd.
    Inventors: Sadao Yoshinaga, Hiroyoshi Mashine
  • Patent number: 4991314
    Abstract: An apparatus and process for impinging a fluid upon an object to be treated. A generally conical shaped flow of fluid is directed from a body which has an opening at the base of the cone against an object to be treated, and located so that fluid impinging on the object reflects upwardly therefrom in the direction of the opening and has a lifting effect on filamentary material, such as hair, located on the object.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: February 12, 1991
    Assignee: Torus Corporation
    Inventor: Donavan J. Allen
  • Patent number: 4977690
    Abstract: An apparatus in which the heat for blow drying a dog's hair is generated from the cooling of a motor and from fluid friction due to air being forced through passageways within the apparatus. The apparatus includes an enclosure and at least one blower motor combination such as the type used in vacuum cleaners. The blower forces air through the motor where the air is heated and then discharged into a pressurized section of the enclosure. Part of this air is then recirculated back to the blower inlet and the rest is discharged through an air hose that is used to dry the animal. A bypass valve is provided to adjust the fraction of the air that is recirculated. Controls are also provided to regulate the amount of fresh air that enters the enclosure and to vary the rotational speed of the blower motor. With proper adjustment of these controls, a very efficient pet hair drier cycle can be achieved.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: December 18, 1990
    Inventor: Albert H. Davis, Jr.
  • Patent number: 4972607
    Abstract: A hair-drying system for use primarily in homes and other locations which employs a central forced air blower to disperse air through an air ducting system to air terminals disposed primarily in bathrooms. The air terminals are covered over when in the non-operative position. Upon physical and electrical coupling of a hair-drying unit to the air terminal, which hair-drying unit is comprised of a dryer and a flex tubing, air will be delivered through the flex tubing to the dryer, since the flex tubing is in fluid connection with both the air ducting system and the dryer. An optional damper(s) can be employed to limit air flow. Heat is applied to the air by a dryer mounted switch controlled resistance heater. The electrical energy to operate the dryer is obtained from a grounded electrical outlet mounted adjacent the cover plate of the air terminal. If 110 volt AC is used to power the dryer, the electrical connection would be via a ground fault interrupter to prevent injury.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: November 27, 1990
    Inventor: Robert R. Lagace
  • Patent number: 4972065
    Abstract: A portable electric hair dryer wherein the hot-air outlet of the housing is connectable with a nozzle having a smaller outlet for directing a concentrated stream of hot air against the hair for drying and/or styling. The maximum achievable output of the heating element in the housing is automatically reduced in response to attachment of the nozzle to the housing to a value such that the temperature of concentrated stream of hot air issuing from the nozzle cannot reach a value which would cause singing or burning of hair. In accordance with a presently preferred embodiment, attachment of the nozzle to the housing results in shifting of a rod-shaped mechanical adjusting member which thereby deactivates one or more stages of a multi-stage switch so that the latter can permit selection of one or more heating element outputs which do not result in overheating of air issuing from the nozzle.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: November 20, 1990
    Assignee: Robert Krups Stiftung & Co. KG.
    Inventor: Heinz-Jurgen Ohlsen
  • Patent number: 4955145
    Abstract: Disclosed herein is an attachment for a blow dryer which allows a person to dry hair from the roots towards the ends with a single hand. The attachment includes a means for connnection to the output side of the blow dryer and an air sheet forming means. Extending from the forming means is an air deflector which deflects the air sheet downward and extending from the remote end of the deflector is a plurality of picks each of which includes a hair lifter at the end thereof. The picks are offset from the surface of the deflector so that the deflected air sheet is deflected into the picks. The picks are spaced apart so as to act as an air diffuser to prevent too great an amount of air from being directed to the pick area. The attachment may be held onto the conventional blow dryer through the use of an elastic strap. In using the attachment it is moved into the area of the hair to be dried and thereafter lifted out.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: September 11, 1990
    Assignee: Lisa Maria Scivoletto
    Inventor: Joseph C. Scivoletto
  • Patent number: 4939345
    Abstract: A portable hair dryer assembly includes a battery that is recharged to operate the air moving system of the assembly. The assembly further includes a cover for the air intake system, and a system for moving the air exhaust nozzle so that the assembly has a plurality of degrees of freedom.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: July 3, 1990
    Inventors: Michelle J. Farina, Jo-Ann Frontario
  • Patent number: 4936027
    Abstract: A hair dryer and steamer combination includes a handle housing mounting a fan blower producing a flow of air and a hair brush attachment having a hair engaging surface for seizing the hair to be styled. Included in the hair brush attachment is a heater which heats the water supplied from a water supplying tank at the end of the attachment to generate the steam. The attachment has its interior divided into an air flow chamber open rearwardly into the handle housing and a steam chamber accommodating the steam heater. The air flow chamber is provided with a number of air vents through which the air flow from the handle housing is discharged outwardly for drying the hair in engagement with the hair engaging surface. The steam chamber has a number of steam vents for discharging the steam outwardly for moistening the hair in engagement with the hair engaging surface.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: June 26, 1990
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Eiji Tsuji
  • Patent number: 4934069
    Abstract: A drying station for large animals, in particular, horses, comprises a blower, which is, essentially, moveable vertically up and down and which is preferably a hot-air blower, disposed in a housing, defining a low-pressure chamber. An adjustable flow guide is disposed in the region of the air outlet thereof. Such a drying station allows the drying of the horse to be carried out without manual work, quickly and thoroughly as well as extremely gently for the animal.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: June 19, 1990
    Assignee: Walser & Co. AG
    Inventor: Bruno Kagi
  • Patent number: 4928402
    Abstract: An apparatus and process for impinging a fluid upon an object to be treated including creating a focused flow in a predetermined direction and placing an object between the focal point of the focused flow and the source of flow for treatment by the fluid therein.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: May 29, 1990
    Assignee: Torus Corporation
    Inventor: Donavan J. Allen
  • Patent number: 4924602
    Abstract: An electrically operated portable hair dryer wherein the housing has an air inlet at its rear end and an outlet for heated air at its front end. A grid between the outlet and the air heating unit in the housing has a hollow cylindrical outer wall which is confined in the housing, a hollow frustoconical inner wall which is spaced apart from and is surrounded by the outer wall, and a cylindrical innermost wall which is spaced apart from and is surrounded by the inner wall. The walls are integrally connected to each other by radially extending webs. The walls have a common axis, and the diameter of the inner wall decreases in the direction of flow of heated air through the grid. A perforated filter is installed in the housing adjacent the inlet, and a motor-driven impeller is rotatably mounted in the housing between the filter and the heating unit.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: May 15, 1990
    Assignee: Robert Krups Stiftung & Co. KG.
    Inventor: Heinz-Jurgen Ohlsen
  • Patent number: 4914273
    Abstract: An infrared hair dryer has four infrared units positionable about the head. Two of the infrared radiating units are fixedly mounted to the top of a framework by a pair of conduits. Side infrared radiating units are mounted to each side of the framework by adjustable means to facilitate positioning of the side units relative to the head of a person whose hair is being dried. Each unit includes an infrared radiator of straight line configuration disposed between a reflecting mirror and a wire screen. A control panel with control circuitry is carried by the framework for relative positioning with respect therefore and is connected to the radiators by electrical conductor means which extend through the conduits. A sensor and indicator are carried by the framework as is a motorized blower unit for blowing air through appropriately formed louvers and towards selected locations. The heat sensor is adjustably mounted to serve as a reference point in adjusting the infrared units.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: April 3, 1990
    Assignee: Takara Belmont Co., Ltd.
    Inventor: Tadateru Matsui
  • Patent number: 4910382
    Abstract: A hair drying apparatus consists of a curved radiation element for radiating of infrared rays and a reflector for supporting the radiation element and for reflecting infrared rays radiated from the radiation element. A rotating member is provided for rotatable support of the pivotal motion of the reflector. The hair drying apparatus has a drive engagement for activating a rotating member which includes a slip clutch mechanism stopping the rotation of the rotating member when the radiation element and the reflector strike an object during the rotation.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: March 20, 1990
    Assignee: Takara Belmont Kabushiki Kaisha
    Inventors: Yuji Kakuya, Masaharu Shindo
  • Patent number: 4903416
    Abstract: A handheld cordless hair dryer utilizes a battery powered fan for directing a flow of air through a nozzle body portion within which a heat exchanger is disposed in heat exchange relationship with respect to both the airflow and heat generated by a gas combustion device. To provide a highly efficient transference of heat from the gas combustion device to the airflow, while avoiding high temperature conditions in exhaust gases discharged or at the peripheral wall of the nozzle body portion, the heat exchanger is comprised of a heat conductive inner duct and an outer duct between which conductive vanes extend, the outer duct being in spaced relationship with respect to an inner surface of the peripheral wall of the nozzle body portion and the inner duct serving as both a combustion tube and an exhaust duct for the gas combustion device.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 27, 1990
    Inventors: Mark R. Levin, William M. Nalley, Dwight L. Green
  • Patent number: 4896021
    Abstract: A portable electric hair dryer wherein the housing contains an electric motor for an impeller which induces the flow of air from an inlet of the housing, along an electric heater in the housing and to and through an outlet of the housing. The casing of the motor is surrounded by a ring-shaped diffuser with stationary guide vanes which uniformize the flow of air toward the heater. The controls of the motor are mounted on a circuit board which carries one or more triacs, diodes and/or other electronic components which are heated when connected with a source of electrical energy and must be cooled when the hair dryer is in use. The heatable electronic component or components are mounted on an extension of the circuit board, and such extension is installed directly in the diffuser between two neighboring guide vanes. To this end, one of the guide vanes is removed or omitted and the electronic component or components take the place of the missing guide vane.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: January 23, 1990
    Assignee: Robert Krups Stiftung & Co. KG
    Inventors: Hans-Dieter Poweleit, Heinrich Komesker
  • Patent number: 4896020
    Abstract: A portable electric hair dryer wherein the insulating carrier of electric contacts for a motor which drives an air impeller between the air-admitting inlet and the air-discharging outlet of the housing is separably coupled to a second insulating carrier which is provided with electric contacts for and supports an electric heater. The latter heats the flow of air between the inlet and the outlet of the housing. One of the carriers has male coupling elements, which can include or constitute the contacts on the one carrier, and the other carrier can have female coupling elements, which can include or constitute the contacts on the other carrier, capable of separably receiving and retaining the male coupling elements.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: January 23, 1990
    Assignee: Robert Krups Stiftung & Co. KG.
    Inventor: Hans-Dieter Poweleit
  • Patent number: 4882467
    Abstract: A bathroom mirror defogger includes a translucent spherical psuedo light bulb-type housing having an electric plug base extending therefrom along the central axis of the housing and adapted to be screwed into a lamp socket in a light bar immediately juxtaposed to a side and/or top edge of a bathroom wall mirror. The housing is provided with an air inlet and an air outlet and encloses an electric heating coil and motor driven fan. The air outlet is positioned laterally of the central axis on a portion of the housing rotatable about the central axis so that the orientation of the outlet can be adjusted relative to the mirror surface. The fan aspirates air through the inlet across the heating coil and pumps the resultant warmed air out through the outlet and against the mirror surface to remove or prevent moisture condensation thereon from a shower or hot water present in the bathroom.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: November 21, 1989
    Inventor: Keene P. Dimick
  • Patent number: 4848007
    Abstract: A diffuser attachment for a hair dryer includes a perforated face plate having a diameter between 2 and 6 times that of the nozzle portion of the hair dryer to which the diffuser is attached, and a plurality of spaced apart slot portions in the sidewall of the diffuser attachment enabling unheated air to enter the diffuser attachment during use and enabling heated air to escape after use, thus avoiding overheating.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: July 18, 1989
    Assignee: Helen of Troy Corporation
    Inventor: James G. Montagnino
  • Patent number: 4835879
    Abstract: A novel pad assembly is provided for use with a standard hand-held hair dryer to aid in removing undesired odors from a beauty salon. The pad assembly of the present invention is provided for use with standard hand-held hair dryers which include an aperture for supplying a heated air stream and a barrier attached to the aperture for preventing objects from entering into or passing out of the hair dryer. The pad assembly includes a pad portion made of a flame retardant, liquid absorbent material which is sized to fit within the aperture of the hair dryer. The pad portion has a backing attached thereto. The backing has an outer surface on which is disposed an adhesive material for mounting the pad assembly to the barrier of the hair dryer. An oil based scented liquid material is disposed within and absorbed by the pad such that a scent is released to the heated air stream upon use of the hair dryer.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: June 6, 1989
    Inventor: Randi K. Egelstad
  • Patent number: 4802287
    Abstract: A dual purpose hand and hair dryer, and a cabinet for mounting the hair dryer on a wall for use as a hand dryer. The cabinet has a swing-down front part which receives the hair dryer and which has electric circuitry for operating the hair dryer including a light-sensitive switch and a timer.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: February 7, 1989
    Assignee: Tatung-Conair Corporation
    Inventor: Shye L. Chen
  • Patent number: 4800654
    Abstract: A handheld cordless hair dryer utilizes a battery powered fan for directing a flow of air through a nozzle body portion within which a heat exchanger is disposed in heat exchange relationship with respect to both the airflow and heat generated by a gas combustion device. To provide a highly efficient transference of heat from the gas combustion device to the airflow, while avoiding high temperature conditions in exhaust gases discharged or at the peripheral wall of the nozzle body portion, the heat exchanger is comprised of a heat conductive inner duct and an outer duct between which conductive vanes extend, the outer duct being in spaced relationship with respect to an inner surface of the peripheral wall of the nozzle body portion and the inner duct serving as both a combustion tube and an exhaust duct for the gas combustion device.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: January 31, 1989
    Assignee: Mark R. Levin
    Inventors: Mark R. Levin, William M. Nalley, Dwight L. Green
  • Patent number: 4794225
    Abstract: A handheld blow dryer for hair is provided with a low static pressure tube axial fan having at least five blades and having a diameter which is approximately 98 percent of the ID of the air flow housing. The fan hub diameter approximately coincides with the motor casing diameter and the heating element is arranged in a torus or helix downstream of the fan. A typical housing outlet diameter of 2.875 inches provides a coverage area of about 6.5 square inches.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: December 27, 1988
    Inventor: Hector L. Maese
  • Patent number: 4791519
    Abstract: An immersion detection current interrupter circuit with an electric latch for use in small electrical appliances. A sensor wire is positioned within an appliance to sense current leakage when in contact with a conductive fluid. A relay or solenoid connected to the sensor is positioned between the load leads in a latch circuit. When the sensor detects a leakage current, it causes a two-pole double-throw relay to latch, breaking the load lines beyond the relay. The relay will remain latched until the power cord is unplugged or reset by a switch which opens and closes the power lines. Once the component has latched, the maximum leakage current will be limited by the voltage drop across a diode.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: December 13, 1988
    Assignee: North American Philips Corp.
    Inventor: Elmer W. Madsen
  • Patent number: 4767914
    Abstract: A hair dryer with a frusto-conical casing tapering from a larger rear air inlet end to a smaller air outlet end contains in coaxial alignment therewith in an electric heater element shaped as a cylindrical open-ended cage and an electric motor extending partly into the cage and driving axial fan positioned rearwardly of the cage. The cage consists of series connected spaced parallel metal strips held by electrically non-conductive end rings and inclined to the cage circumference to form air guide vanes. The cage divides the casing space into an annular outer duct decreasing in cross section toward its front end and closed by contact with the casing and an annular inner duct between the cage and motor. Part of the air from the fan flows through the outer duct and through the vanes to the cage interior while the remainder flows through the inner space to cool the motor. The two air streams mix to the required temperature in the cage interior downstream of the motor for discharge through the air outlet.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: August 30, 1988
    Inventor: Dov. Z. Glucksman
  • Patent number: 4759135
    Abstract: An attachment for a hair dryer performs the function of providing a lower velocity diffused air flow with apparatus to separate and lift the hair and allow the entire hair strand, from root to end, to be dried at the same time. The attachment includes a base member shaped to expand and turn a column of air from a conventional blow dryer by, for instance, 45 degrees. A face plate holds a diffuser pad in position. Extending from the face plate away from the base are a plurality of hair lifters, each of which lift a small amount of hair, so as to permit the entire hair, from root to end, to receive air and be dried at the same time. The face plate includes a plurality of holes therethrough to permit air flow and each hair lifter includes a post extending upward from the edge of the hole and an extension from the top of the post into the area above the corresponding hole. This structure allows the face plate to be fabricated by injection molding.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: July 26, 1988
    Inventor: Joseph C. Scivoletto
  • Patent number: 4757183
    Abstract: A cordless portable hand held hair dressing appliance has a housing provided with a pistol-grip handle and containing a battery operated electric fan arranged to draw air into the housing through an air inlet for flow through a heat structure to be heated prior to discharge from a housing air outlet. The heater structure includes air elongated heat accumulator member of high specific heat penetrated in the longitudinal direction by a plurality of air ducts each having an intake communicating with the housing inlet and an outlet communicating with a mixing chamber connected to the housing outlet. The heat accumulator member is formed of a ceramic, e.g., Al.sub.2 O.sub.3 and MgO, and is adapted to be heated to store heat therein by an electrical heating conductor structure formed by a layer of electrical resistance material on the wall of each duct.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: July 12, 1988
    Assignee: Braun Aktiengesellschaft
    Inventors: Hans Karey, Anette Berg
  • Patent number: 4735002
    Abstract: A surface-mounted hair dryer is described which contains a turbine as the motive power for the air flow, incorporates means for minimizing drawing moisture into the unit when it is being used in a humid environment, provides for automatic and positive means of turning the unit on and off and can optionally provide alternate modes of operation including heating of the air to greater or lesser degrees, use of the air blowing feature without the heating or variable speeds of the turbine and resultant differences in air flow rate.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: April 5, 1988
    Inventor: Robert J. Rath
  • Patent number: 4712313
    Abstract: A hands free portable hair dryer holder is provided and is designed to hold a portable hair dryer while in use, allowing a person to use their two free hands on the hair. A mechanism can be built within the holder which will automatically swing the hair dryer up and down while in use so as to prevent excessive heat at one spot on the hair.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: December 15, 1987
    Inventor: Carl Gettleman
  • Patent number: 4711988
    Abstract: A hair dryer including a blower for selectively generating a current of air at various flow rates, a thermostatically controlled electrical heater for selectively heating the current of air at various heat generation rates and a switch mode switch and associated circuitry for selectively activating the heater and the blower and including a three position switch actuated by a single button and having a first normal mode position wherein the heater is activated to generate heat at a first heating rate and the blower is activated to generate a current of air having a first flow rate, a second cool-shot mode position wherein the heater is activated to generate heat at a second heating rate which is less than the first heat rate and the blower means is activated to generate a current of air having a second flow rate which is less than the first flow rate and a third hot-shot mode position whereupon the heater is activated to generate heat at a third heating rate which is equal to or greater than the first heat rat
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: December 8, 1987
    Assignee: Windmere Corporation
    Inventors: Arnold Thaler, P. C. Yip
  • Patent number: 4707933
    Abstract: A wall-mounted dryer of the type for drying a person's hands, face and hair with blowing heated air. The inlet for air into the dryer is formed by a narrow opening around the periphery, except on top, along the surface of the wall for inhibiting the entry of foreign objects, such as by vandals. The narrow opening has inclined louvres for further reducing the size of the openings into the dryer.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: November 24, 1987
    Assignee: Bobrick Washroom Equipment, Inc.
    Inventors: Henry C. Keck, Roy K. Fujitaki
  • Patent number: 4700494
    Abstract: A portable, lightweight and simple device which dries hair spray and other compounds as they are applied to the hair from a container is comprised of rotatable fan blades driven by a battery powered motor. A battery holder is attached to the container and holds the battery in place. An adjustable, flexible conduit is provided for supporting the motor and fan blades in a chosen position in relation to the container, and houses wires for conducting current from said battery to the motor.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: October 20, 1987
    Inventor: Danny W. Pridgen
  • Patent number: 4701595
    Abstract: A portable hand-held hair dryer having a housing formed with an elongate front edge portion along the edgewise direction of which is extended an air outlet for discharge of heated air. A hand grip is slidably connected to the front edge portion of the housing for movement therealong in a straight path between a retracted position in which the hand grip overlies the front edge portion to block the air outlet and a projected position in which the hand grip extends outwardly of the housing to be ready for being grasped by the hand of the user after opening the air outlet. A recess is formed in the housing at a portion adjacent to the function of the hand grip in its projected position so as to receive a portion of the user's hand grasping the hand grip. This recess is advantageous for providing a comfortable support of the hair dryer with a minimum projected length of the hand grip. A voltage selection switch is positioned so as to be accessible only when the hand grip is in its retracted position.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: October 20, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hideo Okutsu, Koushirou Mikami, Kazuyoshi Yonezawa, Kuniharu Ichikawa
  • Patent number: 4701594
    Abstract: The problem of fogged mirrors and wet human body parts in a bathroom after bathing is solved by a device that both selectively defogs the mirror and dries human body parts including the hair. One form of device includes a frame portion that supports the mirror while another form attaches to the mirror. Each form has a housing portion defining a pair of defogging passages and a drying passage in flow receiving relation to the defogging passages with the passages being supplied heated air from a common source. Manually operated valves control the flow through defogging manifolds and between the defogging passages and the drying passage through a drying opening. Controls are also provided to regulate the amount of heat, airflow and time of operation.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: October 20, 1987
    Inventor: Paul E. Powell
  • Patent number: 4700049
    Abstract: A wall-mounted hair dryer has a casing which contains a heating element, a motor, an impeller and associated electrical circuitry. There is a flexible air hose terminating in a handle having an outlet for directing hot air onto the person of a user. The handle can be secured detachably magnetically against the casing, and a switch is provided to switch on the hair dryer when the handle is detached from the casing and to switch it off when the handle is replaced. A electronic timer circuit is also provided to switch off the hair dryer after a predetermined period of operation. Two shaver outlets are mounted on the casing and are connected to a dual-voltage current-limited transformer supplying one of the outlets with mains voltage (e.g., 110 volts) and the other outlet with twice the mains voltage (e.g., 220 volts), with the current to the outlets being limited to 0.1 ampere by a current limiting device.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: October 13, 1987
    Assignee: Panache Promotions (Proprietary) Limited
    Inventor: Richard H. Rubin
  • Patent number: 4692594
    Abstract: An apparatus for drying hair from the inside out is comprised of a supply tube adapted for connection to a source of air such as a portable electric hair dryer. A plurality of feeder tubes are in communication with the supply tube. A plurality of fingers are in communication with each feeder tube with each finger having a distal end and a length sufficient for supporting the plurality of feeder tubes at locations which for the most part are removed from the hair and avoid a flattening thereof. The fingers also include a plurality of openings for permitting air from the source to dry the hair from the inside out. Adjustable belts are connected to the feeder tubes by fasteners cooperating with the feeder tubes and belts enabling the feeder tubes to be selectively disposed in a predetermined spaced relationship.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: September 8, 1987
    Inventor: Jack Martin
  • Patent number: 4691451
    Abstract: A hair dryer comprising an electric motor 1 that places into rotation two or more arms 2 bearing at the ends thereof infra-red and hot air lamps 3, said lamps moving on a curved surface around the user's head due to a mechanism housed in supporting arm 5 and further comprising a sheave 7 with inclined plane, a cam 12 and a cam lever 20 for determining, when combined, a rotation motion of axis 10.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: September 8, 1987
    Inventor: Roberto Giorgis
  • Patent number: 4687906
    Abstract: A portable electric hair dryer includes an electric heater and blower forming a load circuit energized from a pair of power feeder lines connected to a source of AC power. A zero phase-sequence current transformer is electrically coupled to the power feed lines between the connection thereof to the power source and the load circuit to serve as a current leakage detector. An electricaly conductive heater enclosure disposed within the housing of the hair dryer receives the heater and is electrically isolated from the power feed line serving as the hot line. The heater enclosure is electrically connected to the power feeder line serving as the neutral line by a ground wire extending between the heater enclosure and the point at which the zero phase-sequencing transformer is coupled to the power feeder lines to define a leakage current path between the hot line and the heater enclosure should the hair dryer be dropped in water.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: August 18, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Nobuichi Fujishima, Hideharu Nakano, Shuhei Ochi
  • Patent number: 4683370
    Abstract: A hot air gun or blower of the type usable for blistering paint on a painted surface for easing the removal of paint thereof has a housing with internal brackets supporting and retaining a switch assembly, a circuit board, a motor having an impeller, a motor mount, a shroud surrounding the impeller, and a heating element. The internal brackets supporting these elements are configured so as to provide a number of air passages between the elements and the interior wall of the housing. In addition to drawing air through a rear portion of the gun, air is drawn through an annular opening in the front of the gun between the cover for the heating element and the housing. The air thus passes over the covered heating coil and is preheated before being blown by the impeller directly over the coil for primary heating.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: July 28, 1987
    Assignee: Wagner Spray Tech Corporation
    Inventors: Walter J. Petersen, John M. Svendsen
  • Patent number: 4658511
    Abstract: An electric hair dryer wherein a collapsible hood defines one or more plenum chambers for heated air and has a foraminous inner panel which is adjacent to the hair when the hood is placed over the head of the wearer. The hood has a hollow extension which is adjacent to the chest of the wearer and is separably connectable with the slotted detachable cover of a housing for the electric motor which drives a rotor for supplying heated air into the plenum chamber or chambers. The rotor is installed in the cover and is disposed downstream of an air heating unit which is mounted in the interior of a hollow cylindrical or frustoconical air guide and surrounds a tube for admission of cool atmospheric air into the space around the motor. The bottom wall, the front wall and the two lateral walls of the housing are formed with ports which admit atmospheric air into the air guide as well as into the tube.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: April 21, 1987
    Assignee: Robert Krups Stiftung & Co. KG
    Inventors: Gotthard C. Mahlich, Rudolf Maass
  • Patent number: 4653201
    Abstract: A combined mirror and dryer air outlet assembly is mountable to a support such as a wall or a pole. An attachment member such as a cup is affixed to the support. A rotatable housing is connected thereto in a manner to prevent separation, yet permit relative rotation. A mirror and air outlet are mounted on the housing, usually at the front. This permits the height of the air outlet to be changed by rotating the housing. In a preferred version, the housing contains a blower fan and motor as well as an electric heating coil.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: March 31, 1987
    Assignee: Kohler Co.
    Inventor: John W. Seaman
  • Patent number: 4647757
    Abstract: A heater section for hair dryers utilizing spirally wound sinusoidally shaped electric resistance heating wire wound about a plurality of radially extending insulating mica boards. The mica boards are axially aligned along the external surface of a central frustoconical/cylindrical motor shroud disposed within a frustoconically shaped dryer housing and are provided with notches to hold the heating wire. A portion of the air moved by the hair dryer fan is blown past the heating wire between the interior surface of the dryer housing and the motor shroud and a portion is blown past the motor between it and the motor shroud. The apertures in the mica boards and the frustoconical/cylindrical motor shroud facilitate the circulation of heated air within the dryer housing. The frustoconical shape of the front portion of the motor shroud adjacent the hair dryer nozzle enhances turbulence within the heater section to facilitate more uniform temperature distribution at the nozzle of the hair dryer.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: March 3, 1987
    Assignee: Clairol Incorporated
    Inventor: Henrik K. Haastrup
  • Patent number: 4642909
    Abstract: A wall mounted hair dryer has an outlet for dispensing heated air which is movable to multiple positions and in multiple directions. The degrees of movement include translational and rotational degrees of freedom. Translational movements are provided by the outlet itself while an extension tube may be provided to permit additional translational degrees of freedom of movement as well as a rotational degree of movement. The translational degrees of freedom of movement permit the position of the outlet to be proximate the head of the person whose hair is being dried; the rotational degree of freedom of movement permits the selection of the direction in which the heated air is directed. The person whose hair is being dried may accomplish collateral tasks as his hair is being dried.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: February 17, 1987
    Inventor: Roy Garcia
  • Patent number: 4641014
    Abstract: A hand-held hair dryer includes an elongated tubular barrel containing an electric heating element and extending from a hollow volute portion provided with a rotatable impeller producing a flow of air through the barrel. A tubular handle is secured to the volute portion by an elongated rectangular cross-section base portion extending generally transversely to the longitudinal axis of the barrel and having parallel opposed base-sides provided with mirror image C-shaped indentations. A conventional portable radio receiver provided with a speaker and controls is stably seated and cradled within the opposed indentations of the base-sides with the speaker and controls positioned in registry with windows formed in the base-sides to enable the user of the dryer to relieve the tedium of hair drying by listening to music or other entertainment from the housed radio receiver.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: February 3, 1987
    Inventor: Todd A. Bland
  • Patent number: 4635382
    Abstract: A wireless hand held hot air hair dryer comprises a nozzle for exhausting air, a heating chamber disposed proximate the nozzle, a fuel reservoir for storing a vaporizable fuel in a liquid state, and catalytic heating means in fluid flow communication with the fuel reservoir and including a catalyst member disposed within the heating chamber for combusting vaporized fuel supplied from the fuel reservoir. The dryer further includes a battery-powered motor and a fan driven by the motor for passing air through the heating chamber so as to contact said catalyst member, to thereby heat the air prior to exhausting through the nozzle. Manually operated control means are also provided for controlling the amount of current applied to the motor and proportionally adjusting the flow of fuel to the heating means to thereby regulate the temperature of the heated air in relation to the amount of air flow exhausted through the nozzle.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: January 13, 1987
    Inventor: Serge Bourdeau
  • Patent number: 4636617
    Abstract: A heating coil assembly for use in an air blower device has an annular support element, a first end cap, a core having a heating coil spirally wound thereon, a sleeve surrounding the coil and core, and a second end cap. All components have a centrally disposed non-circular bore therein for receiving a heavy gauge non-circular wire retainer, swaged at one end, which extends through the entire assembly and is retained by a press washer at an opposite end. The interior of the sleeve is spaced from the coil forming an axial channel for air flow over the coil. Axial openings in the end caps form air inlets and outlets for the channel. The coil has several leads, at least one of which extends through an axial opening in one of the end caps. The heating coil assembly has a small number of components, which are easily assembled and simultaneously axially and radially positioned and retained relative to each other by the wire retainer.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: January 13, 1987
    Assignee: Wagner Spray Tech Corporation
    Inventors: Walter J. Petersen, John M. Svendsen, Verne J. Morand
  • Patent number: 4636613
    Abstract: A combination hair-dryer and garment ironing apparatus includes a housing having an air inlet and a pair of air outlets. A blower and electric heater in the housing create a flow of heated air through the housing. A permanent, non-removable iron assembly is provided on the housing and includes a sole plate disposed in the path of the heated air flow through the housing. The sole plate forms a portion of a wall of the housing and has an exposed generally flat ironing surface. A heated air diverter member within the housing is selectively movable between a first dryer position in which substantially all of the heated air flowing through the housing is diverted from contact with the sole plate and is exhausted through one of the outlets and a second iron position in which a substantial portion of the heated air flow is diverted into contact with at least a portion of the sole plate for impingement heating of the sole plate to an ironing temperature and is exhausted from the other air outlet.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: January 13, 1987
    Assignee: Anne J. de la Morandiere
    Inventors: Anne J. de la Morandiere, Peter W. Bressler, Peter D. Byar, Edward A. Spector
  • Patent number: 4634839
    Abstract: A forced air drying device for supplying filtered warm air for drying small areas, such as, for example, in dentistry or orthodontics, for drying of the teeth or gums prior to work thereon, includes a hand held forced air unit, such as a hair dryer, provided with a motor driven fan directing a stream of air over an electric heating element and through an outlet opening toward the area to be dried. A detachable nozzle has a first end mounted over the outlet opening and a second end with a reduced cross-sectional area for directing a concentrated stream of heated air to the area to be dried. The nozzle is provided with exhaust vents between the first and second ends thereof to prevent overheating of the motor due to a build-up of pressure resulting from the reduced cross-sectional area of the nozzle second end. An air deflector is provided adjacent each exhaust vent for directing escaping air away from the second and end of the nozzle.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: January 6, 1987
    Inventor: John E. Gilbertson