Having Wick Raiser Patents (Class 431/304)
  • Patent number: 7083409
    Abstract: An oil burning lamp has a fuel reservoir, a fuel expansion chamber releasably and sealingly coupled to the fuel reservoir, a burner assembly coupled to the fuel expansion chamber, and an adjustable wick. If the fuel in the fuel reservoir undergoes thermal expansion, it flows into the fuel expansion chamber, thereby preventing fuel leaks and spills. In the preferred embodiment, the burner assembly is permanently coupled to the fuel expansion chamber, thereby preventing users from refueling the lamp while the lamp is burning. The fuel expansion chamber also serves as an overflow fuel chamber, so that if the lamp is inadvertently knocked over, the fuel will flow into the fuel expansion chamber, not out of the lamp.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: August 1, 2006
    Assignee: World Factory, Inc.
    Inventors: Gregory G. Kuelbs, Kenneth M. Ward
  • Patent number: 6347879
    Abstract: A votive cap converter kit for converting a votive candle cup into an oil burning candle. The votive cap converter kit includes an elongate tubular sheath with a wick extending through the sheath such that an upper end of the wick outwardly extends from a top end of the sheath and a lower end of the wick outwardly extends from a bottom end of the sheath. A support plate is also included with a wick hole therethrough through which the sheath may be inserted. The support plate is designed for insertion into a container has lamp oil fluid therein such that the bottom end of the sheath is submerged in the lamp oil fluid and the support plate and the top end of the sheath are positioned in the container above the lamp oil fluid.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: February 19, 2002
    Inventor: Heidi A. Prado
  • Patent number: 6010334
    Abstract: In a combustion appliance provided with a combustion wick for sucking up a liquid fuel by the utilization of capillarity and burning it, functions for automatically extinguishing the fire after the combustion has been carried out for a predetermined length of time are constituted with a simple mechanism. The combustion wick (6), which comprises a sucking section for sucking up a liquid fuel by the utilization of capillarity and a burning section for burning the sucked-up liquid fuel, is divided at an intermediate position into a burning section side subdivision (6A) and a sucking section side subdivision (6B). The combustion wick (6) is located such that at least either one of the subdivisions can be moved in a direction that comes into contact with the other and in a direction that separates from the other. The fuel is fed from the sucking section side subdivision (6B) to the burning section side subdivision (6A) when they are brought into contact with each other.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: January 4, 2000
    Assignee: Tokai Corporation
    Inventors: Hideo Mifune, Yasuaki Nakamura, Yosimitsu Kaga, Takashi Tsukamoto
  • Patent number: 5584685
    Abstract: A discharge-type capable of accomplishing ignition of a wick at a position convenient or suitable for the ignition. Spark discharge for ignition of a wick is started in the course of raising of the wick. Thus, any possible variation in height of the wick and deformation of the wick due to wear do not adversely affects ignition of the wick, because the ignition is carried out when a gap between the wick being raised and the discharge electrode is rendered optimum for the ignition. This permits a dry cell to be satisfactorily used as a power supply for the ignition.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 17, 1996
    Assignee: Toyotomi Co., Ltd.
    Inventors: Toshihiko Yamada, Masanori Kawamura
  • Patent number: 5549470
    Abstract: A safety device for preventing uncontrolled burning in wick-fed liquid fuel burners employs a thermal barrier between the heat of the combustion process and a removable fuel tank 60. Also, a fuel containment compartment (24) and fuel containment sump (44) are provided to receive fuel from the fuel chamber (40) when excess fuel is delivered to the fuel chamber from the removable fuel tank. When the fuel in the fuel chamber exceeds a predetermined level, a warning gauge needle 90 is deflected, alerting the user of the liquid fuel burner to a dangerous condition.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 27, 1996
    Inventor: Richard W. Henderson
  • Patent number: 5413479
    Abstract: A discharge-type ignition device for an oil burner capable of permitting ignition of a wick to be carried out at any optimum position of the wick which is fixed. First and second discharge electrodes are arranged in proximity to the wick when it is raised to a combustion position. An ignition switch is kept turned on in the course of upward movement of the wick for ignition, so that spark discharge is generated between the discharge electrodes toward the wick being raised. The wick is raised to an uppermost position beyond the combustion position every time when the ignition operation is carried out, so that ignition may take place at any optimum position of the wick.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: May 9, 1995
    Assignee: Toyotomi Company, Ltd.
    Inventors: Yutaka Nakanishi, Toshihiko Yamada, Toru Nakagaito
  • Patent number: 5030085
    Abstract: A wick operating structure of the lever actuation type for an oil burner capable of finely adjusting the combustion with high accuracy during the combustion operation. The structure includes an operation lever for rotating a wick operating shaft which is provided with a drive pin and a plurality of drive levers pivotally moved independent from one another so as to be accessible to the drive pin. The drive levers are formed with a V-shaped recesses which are different in configuration from one another little by little and in which the drive pin is alternatively fitted to cause the operation lever to be pivotally moved to different positions little by little.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: July 9, 1991
    Assignee: Toyotomi Kogyo Co., Ltd.
    Inventors: Toshihiko Yamada, Yutaka Nakanishi, Shozou Asano
  • Patent number: 4995806
    Abstract: An oil stove comprises a combustion wick for burning oil, a device for extinguishing the fire at the combustion wick, and a deodorizing device for absorbing or removing gases causing smells that are produced when the burning portion at the combustion wick is extinguished. The deodorizing device comprises gas sensing means for detecting the generation of the gas, and suction means responsive to the gas sensing means for absorbing or removing the gas.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: February 26, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Akita, Junji Aiga
  • Patent number: 4872831
    Abstract: A kerosene heater having a vertically oriented wick (4) which is movable to an upper position to be ignited, to a lowered position to be extinguished, and to any of a range of intermediate positions for continuous combustion, incorporates an apparatus (6A) operable by actuating a lever (6) to raise the wick to the upper position and initiate ignition and to lower the wick from that position, and an apparatus coupled thereto for automatically lowering the wick to a predetermined position within the combustion range after a predetermined time interval has elapsed following the start of igniting the wick. The danger of excessive flare-up of the wick flame after ignition is thereby eliminated, without the need for observation and control of the heater by the user.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: October 10, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayuki Fujimoto, Muneo Tao, Kuniaki Uchida
  • Patent number: 4847192
    Abstract: In a kerosene heater in which combustion is effected by means of a wick (3), a wick raising and lowering mechanism (5) for raising and lowering the wick (3) and a fine-regulatable wick raising and lowering mechanism (20) for finely controlling the combustion rate of the wick (3) are provided. The fine-regulatable wick raising and lowering mechanism (20) generally includes a rack (23), a wick-raising pinion (32), a wick-lowering pinion (34), a first manually operable member (27) for driving the wick-raising pinion (32), and a second manually operable member (28) for driving the wick-lowering pinion (34). The combustion rate can be finely, easily, and safely regulated by means of an operation between the rack (23) and the wick-raising and lowering pinions (32, 34).
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: July 11, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayuki Fujimoto, Muneo Tao, Kuniaki Uchida
  • Patent number: 4767318
    Abstract: A catalyst moving structure for an oil burner capable of facilitating handling of the oil burner in the manufacturing and maintenance as well as covering a combustion gas discharge opening of a combustion cylinder construction of the oil burner when a wick operating shaft is rotated to a fire-extinguishing position, to thereby effectively preventing discharge of bad odor during the fire-extinguishing operation. The catalyst moving structure includes a catalyst moving mechanism including a vertically movable sliding shaft and a connecting rod pivotally mounted on the sliding shaft, a catalyst support member mounted on the sliding shaft, and a movement transmission mechanism including a cam device fitted on the wick operating shaft and a push-up lever operatively connected between the cam device and the connecting rod to transmit actuation of the wick operating shaft to the connecting rod to vertically move the sliding shaft.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: August 30, 1988
    Assignee: Toyotomi Kogyo Co., Ltd.
    Inventors: Yutaka Nakanishi, Toshihiko Yamada, Shigeo Gamou
  • Patent number: 4726762
    Abstract: A wick actuating device of the lever actuation type for an oil burner is disclosed which is capable of not only vertically moving a wick but variably setting the ignition position of the wick as desired. The wick actuating device includes an operation lever loosely fitted on a wick operating shaft, a shaft actuation lever fixedly fitted on the shaft and a connection mechanism for connecting both levers to each other. The connection mechanism includes a slit formed at the operation lever and a pin slidably mounted on the shaft actuation lever and movably fitted in the slit. The slit is formed to be oblique with respect to the sliding direction of the pin so that the operation lever is engaged with the shaft actuation lever through the slit and pin at an angle which is varied depending upon the position of the pin in the slit.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: February 23, 1988
    Assignee: Toyotomi Kogyo Co., Ltd.
    Inventors: Kazuharu Nakamura, Akiyoshi Okayasu
  • Patent number: 4666398
    Abstract: Large numbers of vent holes are respectively formed in inner and outer flame cylinders defining an annular combustion chamber to supply air thereto. A total opening area of the vent holes formed in the outer flame cylinder is greater than that of the vent holes formed in the inner flame cylinder. As a result, the heat capacity of the outer flame cylinder is smaller than that of the inner flame cylinder. During combustion, the outer flame cylinder is heated to red-hot. A plurality of projections are formed on the outer wall surface of the inner flame cylinder to allow complete combustion of a fuel vapor.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: May 19, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsuyoshi Kumazawa, Minoru Komori
  • Patent number: 4664095
    Abstract: A safety device for an open-type combustor such as a room-type oil stove which is capable of quickly extinguishing the flame of the combustor upon the occurrence of oxygen starvation but which does not operate unnecessarily during ordinary shut-off operations. A thermally deformable element is mounted in the vicinity of a wick guide cylinder or the like for detecting changes in temperature in case of abnormal combustion. An interlock body provided through an operating lever operates an automatic fire-extinguishing unit in response to the thermally deformable element. An engagement/locking portion is provided in the vicinity of the thermally deformable element for engaging and locking the interlock body.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: May 12, 1987
    Assignee: Hitachi Heating Appliances Co., Ltd.
    Inventors: Mutsuhiko Takahashi, Minoru Tadokoro, Hiroshi Matsuzaki
  • Patent number: 4596524
    Abstract: This invention provides a wick type burner equipped with a manual fire extinguishing means for pushing up a lever (37) through an intermediary of a pin (43) by the operation of a manual fire extinguisher (41), thereby disengaging it from the first locking part (33a), to permit the wick (24) to go down until it engages with the second locking part (33b) and a quake fire extinguishing means for pushing up the lever (37) by means of the flange (39a) as the weight (39) has fallen down, causing the wick (24) to go down deeper without encountering the first locking part (33a) and the second locking part (33b), so that while the safety is assured by effecting fire extinguishment in short time in an emergency as when an earthquake occurs, etc.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: June 24, 1986
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventor: Tadashi Takashima
  • Patent number: 4580970
    Abstract: The disclosure is directed to a wick holder apparatus for a kerosene heater including a cylindrical guide wick tube erected on the bottom portion of an oil tank, a cylindrical outer wick tube disposed around the guide wick tube and a cylindrical wick concentrically disposed for vertical movements in an annular gap between the guide wick tube and the outer wick tube, and characterized in that there are further provided a wick holding tube releasably attached to the wick for movement in one unit, and a wick moving tube provided for vertical movement in the oil tank and releasably engaged with the wick holding tube, with the wick holding tube being provided with resilient engaging pieces which are engageable with corresponding engaging holes or apertures formed in the wick moving tube through rotation of the wick holding tube for facilitation of attaching or detaching of the wick.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: April 8, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Toyohei Harada
  • Patent number: 4580971
    Abstract: An oil heater having a wick fed radiant burner which comprises a wick adjusting shaft rotatable in first and second directions about the longitudinal axis thereof; a wick holder for moving together therewith a wick between an extinguishing position and a maximum combustion position past a minimum combustion position in response to the rotation of the shaft; a ratchet wheel mounted on the shaft for displacement axially of the shaft; an actuating pin mounted on the shaft and angularly movable together with the shaft; an abutment bank provided on the wheel for defining the angular distance over which the pin moves, which angular distance corresponds to the distance of movement of the wick holder between the maximum combustion position and the extinguishing position; and a one-way stopper provided on the wheel and operable to permit the pin to pass thereover during the rotation of the shaft in the second direction, but to restrain the pin from passing thereover during the rotation of the shaft in the first direct
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: April 8, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Muneo Tao, Hiromi Ohta, Masayuki Fujimoto
  • Patent number: 4534727
    Abstract: In a liquid fuel burner of the type wherein vaporization of the fuel is sustained by the heat of its own flame, an oxygen sensor is located in the flame to provide a signal when the flame diminishes indicating the occurrence of an oxygen shortage condition to permit a safety device to automatically extinguish the flame.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: August 13, 1985
    Assignee: Matsushita Electric Industrial Company, Limited
    Inventor: Mituhiro Imajima
  • Patent number: 4493634
    Abstract: A kerosene heating stove is equipped with a temperature sensor and a carbonic oxide sensor. The temperature of a space is maintained at a constant level by automatically increasing and decreasing the burning length of a wick in the kerosene heating stove to change the height of the heating flame. The carbonic oxide sensor automatically generates an alarm and decreases the length of the wick to extinguish the flame if the concentration of carbonic oxide in the space increases to a predetermined dangerous level. In another embodiment, a kerosene heating stove is provided with a humidifier which automatically permits water to flow into an evaporating container in proximity to the flame when the moisture content of the air in the space falls below a predetermined level in order to regulate the moisture content of the air.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: January 15, 1985
    Inventor: Jerry S. C. Yang
  • Patent number: 4486170
    Abstract: In a liquid fuel combustion apparatus, the upper end of a wick is ready to be ignited when it projects upward from a pan portion, and is extinguished when it is withdrawn downward from the pan portion. The wick moves up and down as a first operating lever swings around an operating shaft. If the first operating lever is lowered, a retaining lever is raised by a bent strip. When the wick is in a position for high-temperature combustion, a retaining portion of the retaining lever engages a receiving portion of an interlocking plate. When the first operating lever is lowered, its engaging pin engages an engaging slit of an adjusting lever. If a knob of a thermal power control plate is moved up and down along a slot, the adjusting lever swings around a support pin, and the first operating lever swings slightly through the engaging pin and the engaging slit. Thus, the wick is moved up and down in a combustion region for adjustment of thermal power.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: December 4, 1984
    Assignee: Toshiba Heating Appliances Co., Ltd.
    Inventors: Ichiro Tsukada, Yoshio Kato, Tadashi Sakai
  • Patent number: 4480987
    Abstract: A wick-type combustion apparatus for liquid fuels comprises: a pair of cylindrical walls extending vertically and opposed to each other with a gap; a cylindrical wick vertically movable as guided between and along the walls; a slit-form cylindrical fuel passage opening provided in the outer wall and adapted to be opened and closed by the descent and ascent, respectively, of the wick; a fuel trap chamber provided around the opening in communication therewith; and a cylindrical porous member vertically extending in the chamber.A flame or flames remaining after the descent of the wick can be instantaneously blown out by a blast of an explosive combustion which occurs in the fuel trap chamber. The porous member serves to reduce the amount of unburnt fuel used for the explosive combustion, so that an abnormal rise of flame or flames attendant with the explosion can be prevented.
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: November 6, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomomasa Mandai, Hiromi Ohta, Tadashi Yamazaki, Yoshihisa Urakawa
  • Patent number: 4437832
    Abstract: The subject lamp wick equipment for a combustion apparatus comprises a cylindrical lamp wick, cylindrical lamp wick holder and cylindrical auxiliary lamp wick holder. The peripheral wall of the lamp wick is provided with openings. The auxiliary lamp wick holder is fitted around the lamp wick, and comprises engagement holes formed at that spots of the peripheral wall of the auxiliary lamp wick holder which face the openings. The cylindrical lamp wick holder is fitted around the cylindrical auxiliary lamp wick holder. The engagement pawls of the lamp wick holder are so elastically urged as to project thereinto. When the lamp wick is fitted into the auxiliary lamp wick holder, which in turn is fitted into the lamp wick holder, then the engagement pawls of the lamp wick holder project into the engagement holes of the auxiliary lamp wick holder and the openings of the lamp wick, thereby preventing the lengthwise relative movement of the lamp wick and lamp wick holder.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: March 20, 1984
    Assignee: Toshiba Heating Appliances Co., Ltd.
    Inventors: Kazunori Amano, Youichi Sekiwaga
  • Patent number: 4427365
    Abstract: A wick assembly for a liquid fuel combustion apparatus is structured by laminating a main wick and an auxiliary wick, and sandwiching a separator of an oil-impermeable material therebetween. By being so structured, the main wick can be made being hardly deteriorated in terms of its calorific value. A material having a large oil containing ability can be selected for the main wick, and distance between the oil level and top of wick can be made shorter. Fire-spreading time of the wick assembly after a lapse of long service period is still as short as that at the beginning of the service, and generation of an objectional odor and carbon monoxide at the time of ignition can be suppressed constantly.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: January 24, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takuro Kotera, Yoshimi Ohmukai, Yoshitaka Kawasaki, Kinichi Adachi
  • Patent number: 4384847
    Abstract: A fire bowl having a bowl-like container (6; 50; 72; 92) filled with a fuel like oil, and a rotary body (7; 57; 74; 95) rotatably supported above said fuel (8; 54), a plurality of non-consumable wicks being held on said rotary body, said wicks being partly immersed into said fuel and the upper ends thereof being situated within or beneath a shell (39; 52; 93) of translucent material which is open at its upper and lower ends. The rotary body can have apertures for the wicks, and for each wick (34) a separate shell (39) can be provided. The shells rest on said rotary body. In the upper side of said rotary body or in said container at least one aperture (41; 94; 96) for admitting air is provided. Preferably, said wicks being arranged in wick holders (33; 75) attached to the lower side of said rotary body.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: May 24, 1983
    Inventor: Hans-Ludwig Schirneker