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Electrical power tool having a motor control circuit for increasing the effective torque output of the power tool

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02P-007/00
출원번호 US-0370394 (1995-01-09)
발명자 / 주소
  • Gilmore Alan A.
출원인 / 주소
  • Black & Decker Inc.
대리인 / 주소
    Harness, Dickey & Pierce, P.L.C.
인용정보 피인용 횟수 : 75  인용 특허 : 4

초록

A power tool such as an electric drill typically contains a gear train that couples the output spindle of the motor to the tool bit-receiving chuck and has associated therewith a degree of looseness which must be taken up before torque from the motor is applied to the tool bit. The control circuit f

대표청구항

[ What is claimed is:] [1.] A power tool having a tool holder, gear means for coupling power to said tool holder, and an electric motor for driving said tool holder via said gear means, said gear means having associated therewith a degree of looseness which must be taken up before torque from said m

이 특허에 인용된 특허 (4)

  1. Bhagwat Pradeep (Baltimore MD) Harrell Duronie (Charlotte NC) Smith Stephen (Raleigh NC) Woods Samuel G. (Baltimore MD), Direct current motor speed control.
  2. Nagata Kunio (Otokuni JPX) Yamashita Masatsugu (Neyagawa JPX) Hamazaki Shinya (Kameyama JPX), Direct-current motor control.
  3. Koharagi Haruo (Ibaraki JPX) Tahara Kazuo (Hitachi JPX) Endo Tsunehiro (Hitachiota JPX) Miyashita Kunio (Hitachi JPX) Ishii Yoshitaro (Hitachi JPX) Jyoraku Fumio (Hitachi JPX) Watanabe Syuji (Ibaraki, Motor control apparatus for an electric vacuum cleaner.
  4. Soshin Koji (Toyonaka JPX) Okamoto Shinichi (Higashi-Yodogawa JPX), Power tools with multi-stage tightening torque control.

이 특허를 인용한 특허 (75)

  1. Phillips,Alan; Jones,Julie L., Amperage control for protection of battery over current in power tools.
  2. Phillips,Alan; Jones,Julie L., Amperage control for protection of battery over current in power tools.
  3. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Anti-entrapment and anti-dead head function.
  4. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Anti-entrapment and anti-dead head function.
  5. Evanyk, Walter, Appliance for dispensing melt adhesive with variable duty cycle and method of implementing.
  6. Evanyk, Walter, Appliance for liquefying solder with variable duty cycle and method of implementing.
  7. Ho, Chi Hong; Chan, Ka Ki; Yip, Wing Fung, Automatic transmission for a power tool.
  8. Deng Doug D. ; Xu Jack H. ; Farkas Kenneth James, Backlash elimination in the drivetrain of an electric vehicle.
  9. Boese, Thomas G.; Bishop, Michael B.; Ambrose, Jeffrey C.; Emerson, John; Paton, David E.; Mazza, Joseph J., Battery backup sump pump systems and methods.
  10. Hudson Richard A. ; Tibbs Bobby L. ; Killebrew Daniel L., Battery pack including input and output waveform modification capability.
  11. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert; Harvest, Nils-Ole; Yahnker, Christopher; Woodcock, Jr., Walter; Runarsson, Einar Kjartan; Hansen, Arne Fink; Morando, Alberto; Lungeanu, Florin, Control algorithm of variable speed pumping system.
  12. Stiles, Jr., Robert W.; Robol, Ronald B.; Berthelsen, Lars Hoffmann; Harvest, Nils-Ole; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert, Control algorithm of variable speed pumping system.
  13. Du, Hung T.; West, Josh, Cordless power tool having multi-speed transmission and constant speed in light torque range.
  14. McCary Brian Douglas, Current compensation system for driving electric motor.
  15. Robol, Ronald B.; Hruby, Daniel J.; Colvin, Johnathan Steven, Discharge vacuum relief valve for safety vacuum release system.
  16. Murray,Thomas W., Drill.
  17. Evanyk, Walter, Dryer/blower appliance with efficient waste heat dissipation.
  18. Funabashi, Kazuhiko; Takano, Nobuhiro, Electric operating machine.
  19. Funabashi, Kazuhiko; Takano, Nobuhiro, Electric operating machine.
  20. Funabashi, Kazuhiko; Takano, Nobuhiro, Electric operating machine.
  21. Arimura, Tadashi; Ohashi, Toshiharu; Kaizo, Hiroyuki; Sekino, Fumiaki; Inagaki, Kenichirou, Electric power tool.
  22. Kusakawa, Takuya, Electric power tool.
  23. Matsunaga, Yutaka; Yamamoto, Hirokatsu; Kusakawa, Takuya, Electric power tool, control unit and recording medium.
  24. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Kjaer, Gert; Runarsson, Einar Kjartan, Filter loading.
  25. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Flow control.
  26. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Flow control.
  27. Katou, Kouji; Hamano, Terufumi; Otsuka, Yoshitaka; Teranishi, Akira; Sakamaki, Kazuya, Hammering tool.
  28. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan J.; Boyd, Paul Brent; Servais, Lance, Hybrid electric cleaning device.
  29. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan Jay; Nuchols, Rick, Hybrid electric device.
  30. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan Jay, Hybrid electric lawnmower.
  31. Lucas,Delbert E.; Lucas,Justin; Lucas,Ryan Jay, Hybrid electric lawnmower.
  32. Lucas,Delbert E.; Lucas,Justin; Lucas,Ryan Jay, Hybrid electric lawnmower having dual power supply.
  33. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan J., Hybrid outdoor power equipment.
  34. Iwata, Kazutaka; Watanabe, Shinji; Takano, Nobuhiro, Impact tool.
  35. Carney, Steven C.; Crass, Matthew M., Impact tool battery pack with acoustically-triggered timed impact shutoff.
  36. Carr Ronald L., Method and apparatus for determining and adjusting torque in an electric impact torque wrench.
  37. Dean, James J., Method and apparatus for limiting torque in an electric drive motor.
  38. Lohr,Guenter, Method for operating a power tool.
  39. Kidd, Melissa Drechsel; Genaw, William James; Pasche, Micheal Robert; Baase, II, Gary Thomas; Berthelsen, Lars Hoffmann; Fink, Rasmus; Holm, Martin Skov, Method of controlling a pump and motor.
  40. Smith,Mark; Whyte,Joseph, Method of monitoring and controlling the seating of screws to the optimum point of grip independent of screw size and material density.
  41. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann, Method of operating a safety vacuum release system.
  42. Henderson, Jeffery L.; Moon, Hong; Wardrup, Mark; Reede, Ivan, Microprocessor for controlling the speed and frequency of a motor shaft in a power tool.
  43. Simizu, Satoru; Cho, Y. Sean; Margolin, Arkady; Obermeyer, Richard T.; Sankar, Suryanarayan G., Motor controller system for battery-powered motors.
  44. Chen,Lung Pao, Pneumatic tool.
  45. Chen,Lung Pao, Pneumatic tool.
  46. Ito, Yutaka; Oomori, Katsuhiro; Nakamura, Mizuho; Nishikawa, Tomomasa; Mashiko, Hironori, Power tool.
  47. Watabe, Shinji; Iwata, Kazutaka; Takano, Nobuhiro, Power tool.
  48. Forster, Michael K.; Leh, Jason K.; Lin, Wing W., Power tool having a non-linear trigger-speed profile.
  49. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Kjaer, Gert; Lungeanu, Florin, Priming protection.
  50. Bogue, Edward M., Pulsed rotation screw removal and insertion device.
  51. Koehl, Robert M., Pump control system and method.
  52. Koehl, Robert M., Pump controller system and method.
  53. Koehl, Robert M., Pump controller system and method.
  54. Koehl, Robert M., Pump controller system and method.
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  56. Koehl, Robert M., Pump controller system and method.
  57. Koehl, Robert M., Pump controller system and method.
  58. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Hruby, Daniel J.; Murphy, Kevin; Runarsson, Einar Kjartan; Hansen, Arne Fink; Lungeanu, Florin; Westermann-Rasmussen, Peter, Pumping system with housing and user interface.
  59. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Runarsson, Einar Kjartan, Pumping system with power optimization.
  60. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Runarsson, Einar Kjartan, Pumping system with power optimization.
  61. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Runarsson, Elnar Kjartan, Pumping system with power optimization.
  62. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Hruby, Daniel J.; Murphy, Kevin; Brown, Edward; MacCallum, David; Dunn, Dennis; Clack, Kenneth; Runarsson, Einar Kjartan; Morando, Alberto, Pumping system with two way communication.
  63. Krondorfer,Harald; Bosch,Volker, Rechargeable battery-operated hand machine tool.
  64. Arimura,Tadashi, Rotary impact power tool.
  65. Kidd, Melissa Drechsel; Genaw, William James; Pasche, Micheal Robert; Baase, II, Gary Thomas; Berthelsen, Lars Hoffmann; Fink, Rasmus; Holm, Martin Skov, Safety system and method for pump and motor.
  66. Kidd, Melissa Drechsel; Genaw, William James; Pasche, Micheal Robert; Baase, II, Gary Thomas; Berthelsen, Lars Hoffmann; Fink, Rasmus; Holm, Martin Skov, Safety system and method for pump and motor.
  67. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann, Safety vacuum release system.
  68. Murray,Thomas W.; Murray,Christopher J., Screwdriver.
  69. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Hruby, Daniel J.; Murphy, Kevin; Runarsson, Einar Kjartan; Hansen, Arne Fink; Lungeanu, Florin; Westermann-Rasmussen, Peter, Speed control.
  70. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Hruby, Daniel J.; Murphy, Kevin; Runarsson, Einar Kjartan; Hansen, Arne Fink; Lungeanu, Florin; Westermann-Rasmussen, Peter, Speed control.
  71. Day,Dean W.; Rose,Donald E.; Young,Austin B., Tool and associated methods for controllably applying torque to a fastener.
  72. Lysaght Richard G., Tool monitor and assembly qualifier.
  73. Kust, Richard; Desrosiers, John Joseph; Steinmetz, Francis James; Ma, Dung; Desai, Siddharth, Torque-limiting screwdrivers.
  74. Kust, Richard; Desrosiers, John Joseph; Steinmetz, Francis James; Ma, Dung; Desai, Siddharth, Torque-limiting screwdrivers.
  75. Ichihashi, Naoto, Two-cycle engine and engine tool comprising the same.
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