Heating Element Protected By Grille, Grid, Etc. Patents (Class D23/335)
Circular or cylindrical housing (Class D23/336)
Pedestal or pivoting head mount (Class D23/337)
Liquid fuel type, e.g., kerosene, etc. (Class D23/338)
Gas fired type (Class D23/339)
Quartz type (Class D23/340)
  • Air heater with angled PTC heaters producing diverging heated airflow
    Patent number: 5513296
    Abstract: A positive temperature coefficient (PTC) heater includes a housing, a fan mounted within the housing, a pair of positive temperature coefficient (PTC) heater assemblies disposed in the housing, and a plenum mounted in the housing. The housing includes a front portion and a rear portion connected together to define a front, a rear, a left side and a right side, the front and rear each having at least one opening. The fan is arranged to produce a flow of air from the rear of the housing to the front. The pair of positive temperature coefficient (PTC) heater assemblies are disposed in side by side relationship and angled relative to each other, each at an angle of approximately 7.5 degrees from normal, so as to produce a diverging column of heated air. The plenum mounted in the housing directs the air flow produced by the fan through each of the PTC heater assemblies.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: April 30, 1996
    Assignee: Holmes Products Corp.
    Inventor: Andrew M. Goldstein
  • Refrigerant recovery unit
    Patent number: D344527
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: February 22, 1994
    Assignee: Carrier Corporation
    Inventors: Thomas E. Drago, Richard J. Duell, Lowell E. Paige
  • Portable electrical fan heater
    Patent number: D346855
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: May 10, 1994
    Assignee: Duracraft Corporation
    Inventor: Bernard Chiu
  • Fan heater
    Patent number: D348724
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: July 12, 1994
    Assignee: Del-Rain Corporation
    Inventor: Eliza Lee
  • Convection heater
    Patent number: D348725
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: July 12, 1994
    Assignee: Tatung Company of America, Inc.
    Inventor: Brent J. Wortham
  • Housing for an electric heater
    Patent number: D349761
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: August 16, 1994
    Assignee: Holmes Products Corp.
    Inventor: Joseph M. Cunning
  • Marine engine compartment heater
    Patent number: D352774
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: November 22, 1994
    Assignees: Jerry A. Godfrey, Steve Bell
    Inventors: Jerry A. Godfrey, Steve Bell
  • Heater fan
    Patent number: D353661
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: December 20, 1994
    Assignee: Patton Electric Company, Inc.
    Inventors: James J. Cich, Jr., Joseph C. Carley, Anthony F. Forthofer
  • Heater fan
    Patent number: D353662
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: December 20, 1994
    Assignee: Patton Electric Company, Inc.
    Inventors: Noel T. Patton, Herb Pattison
  • Ceramic heater
    Patent number: D354343
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: January 10, 1995
    Assignee: Holmes Products Corp.
    Inventor: Andrew M. Goldstein
  • Combined fan and heater
    Patent number: D354803
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: January 24, 1995
    Inventor: Ching-Chi Huang
  • Body warmer
    Patent number: D357528
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 18, 1995
    Inventor: William Hsu
  • Combined fan and space heater
    Patent number: D357529
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: April 18, 1995
    Assignee: Miralfin S.R.L.
    Inventor: Giuseppe De'Longhi
  • Heater fan
    Patent number: D358636
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 23, 1995
    Assignee: Chien Luen Industries Company, Ltd., Inc.
    Inventors: John C. Bucher, Shih T. Wu, Ta-Yao Tao, John C. Elliott
  • Air heater
    Patent number: D361828
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: August 29, 1995
    Assignee: Yel Li Electrical Works Co., Ltd.
    Inventor: Cheng-Ho Chen
  • Room air fan housing
    Patent number: D366934
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: February 6, 1996
    Inventor: Christophe K. J. Asselbergs
  • Giant heater
    Patent number: D371833
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 16, 1996
    Assignee: Duracraft Corporation
    Inventors: Rodney B. Jane, Jui-Shang Wang, Stanley Gresens
  • Air heater
    Patent number: D371834
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: July 16, 1996
    Assignee: Duracraft Corp.
    Inventor: Richard O'Grady
  • Hot air blowing unit for drying a person's body
    Patent number: D372339
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: July 30, 1996
    Assignee: BODI-BLO, Inc.
    Inventors: Daniel A. Coykendall, Barbara D. Reynolds
  • Electric fan heater
    Patent number: D372523
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: August 6, 1996
    Assignee: Circulair, Inc.
    Inventor: Leroy F. Radtke, Jr.
  • Heater fan
    Patent number: D373414
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: September 3, 1996
    Assignee: Chien Luen Industries Company, Ltd., Inc.
    Inventors: John C. Bucher, Shih T. Wu, Ta-Yao Tao, John C Elliott
  • Air heater
    Patent number: D374276
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: October 1, 1996
    Assignee: Duracraft Corp.
    Inventor: Richard O'Grady
  • Combined air heater and support therefor
    Patent number: D374277
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: October 1, 1996
    Assignee: Duracraft Corp.
    Inventor: Richard O'Grady
  • Heated air blower
    Patent number: D375348
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: November 5, 1996
    Inventor: Sonja Varrigan
  • Portable electric heater
    Patent number: D376417
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: December 10, 1996
    Assignee: Duracraft Corporation
    Inventors: Rodney B. Jane, Richard O'Grady, John Staton
  • Portable ceramic heater
    Patent number: D376418
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: December 10, 1996
    Assignee: Duracraft Corporation
    Inventor: Jui-Shang Wang
  • Radiant space heater for residential use
    Patent number: D378402
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: March 11, 1997
    Assignee: Solaronics, Inc.
    Inventors: Farshid Ahmady, Srinivas C. Duvvuri
  • Electric space heater for mounting on a ceiling or wall
    Patent number: D379650
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 3, 1997
    Assignee: The W. B. Marvin Manufacturing Co.
    Inventors: Barry W. Smith, Michael T. Kopczewski
  • Portable heater-blower
    Patent number: D380540
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: July 1, 1997
    Inventors: Scott D. Seatvet, Melanie A. Seatvet
  • Retractable cord reel dryer
    Patent number: D380818
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: July 8, 1997
    Assignee: Conair Corporation
    Inventor: Brenda P. K. Yue
  • Marine engine compartment heater
    Patent number: D382048
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 5, 1997
    Inventor: Oliver L. Bennett
  • Portable electric heater
    Patent number: D382634
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: August 19, 1997
    Assignee: Duracraft Corp.
    Inventors: Rodney B. Jane, Jui-Shang Wang, John Staton
  • Body blow drier
    Patent number: D382950
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: August 26, 1997
    Inventor: Mark Kruger
  • Portable space heater
    Patent number: D384733
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: October 7, 1997
    Assignee: Duracraft Corp.
    Inventors: Rodney Jane, Stephen Boyle, Zhiwei Xu, Jui-Shang Wang, Walter Birdsell, Richard O'Grady, W. Dan Haberstich
  • Fan heater
    Patent number: D384734
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 7, 1997
    Assignee: U.S. Philips Corporation
    Inventor: Iain Paul Ellwood
  • Parabolic heater
    Patent number: D385022
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: October 14, 1997
    Assignee: Holmes Products Corporation
    Inventors: Neville R. Glenn, David L. Feer
  • Reflector for a portable heater
    Patent number: D391347
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: February 24, 1998
    Assignee: Duracraft Corp.
    Inventors: Bernard Chiu, Rodney B. Jane, Robert L. Marvin, Jr., John Staton
  • Parabolic electric heater
    Patent number: D391355
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: February 24, 1998
    Assignee: National Presto Industries, Inc.
    Inventor: James Alan Hedrington
  • Heater
    Patent number: D392728
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: March 24, 1998
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Bernard Chiu, Jui-Shang Wang, Stanley Gresens
  • Portable space heater
    Patent number: D395490
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 23, 1998
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Rodney Jane', Stephan Boyle, Zhiwei Xu, Richard O'Grady, Walter Birdsell, Aaron Szymanski
  • Timed lightbulb heating device
    Patent number: D395702
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: June 30, 1998
    Inventor: Rayburn Flatt
  • Housing for a heater
    Patent number: D396279
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 21, 1998
    Assignee: Vornado Air Circulation Systems, Inc.
    Inventors: Glen W. Ediger, Gary P. Israel, Kevin E. Keller, Michael C. Coup
  • Portable electric heater
    Patent number: D396526
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: July 28, 1998
    Assignee: Honeywell Inc.
    Inventors: Stephan Boyle, Walter Birdsell, Steven L. Hecker, Kenneth David Harris, Jr., Stanley Gresens
  • Portable electric heater
    Patent number: D396527
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: July 28, 1998
    Assignee: Honeywell Inc.
    Inventors: Stephan Boyle, Rodney B. Jane, Walter Birdsell, Steven L. Hecker, Kenneth David Harris, Jr.
  • Housing for a heater
    Patent number: D397430
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: August 25, 1998
    Assignee: Vornado Air Circulation Systems, Inc.
    Inventors: Glen W. Ediger, Gary P. Israel, Kevin E. Keller, Michael C. Coup
  • Heater
    Patent number: D397775
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: September 1, 1998
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Bernard Chiu, Jui-Shang Wang, Stanley Gresens
  • Portable electric heater
    Patent number: D400659
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: November 3, 1998
    Assignee: Honeywell Inc.
    Inventors: Stephan Boyle, Rodney B. Jane, Walter Birdsell, Steven L. Hecker, Kenneth David Harris, Jr.
  • Portable electric heater
    Patent number: D401314
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: November 17, 1998
    Assignee: Honeywell Inc.
    Inventors: Stephan Boyle, Walter Birdsell, Steven L. Hecker, Richard O'Grady
  • Portable electric heater
    Patent number: D401315
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: November 17, 1998
    Assignee: Honeywell Inc.
    Inventors: Stephan Boyle, Walter Birdsell, Steven L. Hecker, Scott W. Osiecki
  • Electric heater
    Patent number: D402741
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: December 15, 1998
    Assignee: Yel Li Electrical Works Co., Ltd.
    Inventor: Cheng-Ho Chen