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

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02P-007/00
출원번호 US-0087932 (1993-07-06)
발명자 / 주소
  • Gilmore Alan A. (Baltimore MD)
출원인 / 주소
  • Black & Decker Inc. (Newark DE 02)
인용정보 피인용 횟수 : 63  인용 특허 : 0

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 ▼

A power tool having a tool holder, gear means coupled to said tool holder, operator actuable input means, and an electric motor for driving said tool holder via said gear means, said gear means having associated therewith a degree of looseness that must be taken up before torque from said motor is t

이 특허를 인용한 특허 (63)

  1. Stephen S. Thompson ; Paul G. Huber ; Falgun Patel, Anti-kickback and breakthrough torque control for power tool.
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  2. Evanyk, Walter, Appliance for dispensing melt adhesive with variable duty cycle and method of implementing.
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  3. Evanyk, Walter, Appliance for liquefying solder with variable duty cycle and method of implementing.
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  4. Liebhard, Gernot; Hamersmit, Ante, Battery pack-operated hand-guided power tool with throttle lever.
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  5. Svennung, Johan; Martinsson, Pär; Björnlinger, Johan, Battery-powered portable tools.
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  7. Cox, John D.; Gottesman, Tal, Control scheme to increase power output of a power tool using conduction band and advance angle.
    상세보기
  8. Klingbeil Thomas,DEX, Control system for a two-terminal electric motor connected to a voltage network having two lines.
    상세보기
  9. Nakazawa, Hiroyuki; Fujita, Hideki, Controller for use with an electric screwdriver.
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  10. Du, Hung T.; West, Josh, Cordless power tool having multi-speed transmission and constant speed in light torque range.
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  11. Evanyk, Walter, Dryer/blower appliance with efficient waste heat dissipation.
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  12. Kushida, Toshihiko, Electric bolt/nut fastener.
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  13. Ronald V. Schauer, Electric motor hand tool with digital input and control.
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  14. Funabashi, Kazuhiko; Takano, Nobuhiro, Electric operating machine.
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  16. Funabashi, Kazuhiko; Takano, Nobuhiro, Electric operating machine.
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  17. Kusakawa, Takuya, Electric power tool.
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  18. Hahn,Dietmar; Di Nicolantonio,Aldo, Electric power tool with memory capability.
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  19. Matsunaga, Yutaka; Yamamoto, Hirokatsu; Kusakawa, Takuya, Electric power tool, control unit and recording medium.
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  20. Nakazawa,Hiroyuki; Fujita,Hideki, Electric screwdriver and a controller thereof.
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  21. Chen, Liang; Zhou, Qiwei; Chen, Wu, Electrical wrench.
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  22. Forster, Michael K.; Velderman, Matthew, Electronic switching module for a power tool.
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  23. Forster, Michael K.; Velderman, Matthew; Vanko, John C., Electronic switching module for a power tool.
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  24. Velderman, Matthew; Forster, Michael K., Electronic switching module for a power tool.
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  25. Velderman, Matthew; Forster, Michael K., Electronic switching module for a power tool.
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  26. Velderman, Matthew; Forster, Michael K.; Marcinkowski, Robert, Electronic switching module for a power tool.
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  27. Velderman, Matthew; Forster, Michael K.; Marcinkowski, Robert, Electronic switching module for a power tool.
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  28. Ng, Wong Kun; Shook, Christopher W., Fastener setting algorithm for drill driver.
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  29. Sergyeyenko, Oleksiy P.; Shook, Christopher W.; Ng, Wong Kun; Phillips, Stephen J., Fastener setting algorithm for drill driver.
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  30. Reutlinger, Kurt; Bosch, Volker, Hand-guided or stationary power tool having a drive unit.
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  31. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan J.; Boyd, Paul Brent; Servais, Lance, Hybrid electric cleaning device.
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  32. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan Jay; Nuchols, Rick, Hybrid electric device.
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  33. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan Jay, Hybrid electric lawnmower.
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  34. Lucas,Delbert E.; Lucas,Justin; Lucas,Ryan Jay, Hybrid electric lawnmower.
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  35. Lucas,Delbert E.; Lucas,Justin; Lucas,Ryan Jay, Hybrid electric lawnmower having dual power supply.
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  36. Lucas, Delbert E.; Lucas, Justin; Lucas, Ryan J., Hybrid outdoor power equipment.
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  37. Carney, Steven C.; Crass, Matthew M., Impact tool battery pack with acoustically-triggered timed impact shutoff.
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  38. Carr Ronald L., Method and apparatus for determining and adjusting torque in an electric impact torque wrench.
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  39. Wörz, Joachim; Brandner, Michael, Method and device for operating a hand-held machine tool with a tangential impact mechanism.
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  40. Lothar Borho DE; Karl-Heinrich Preis DE, Method for influencing the electrical power of a load with a pulse width modulated signal.
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  41. 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.
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  43. Lam, Chin Hung; Wong, Tsz Kin, Power tool.
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  44. Iwata, Kazutaka, Power tool for performing soft-start control appropriated for motor load.
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  45. Forster, Michael K.; Leh, Jason K.; Lin, Wing W., Power tool having a non-linear trigger-speed profile.
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  46. Gass, Stephen F.; D'Ascenzo, David S., Power tools.
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  51. Gass,Stephen F.; D'Ascenzo,David S., Power tools.
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  52. Wood, Michael R.; Ball, Jr., William M.; Taylor, Christopher John, Precision-fastening handheld cordless power tools.
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  53. Schell Craig A. ; Parks James R. ; Hagan Todd A. ; Nandam Pradeep Kumar ; Bailey ; Jr. Rouse R., Production assembly tool.
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  54. Phillips, Steven J.; Sergyeyenko, Oleksiy; Shook, Christopher W.; Ng, Wong Kun; Wenger, Kevin, Remote programming of a power tool.
    상세보기
  55. Carrier, David A.; Puzio, Daniel; Bradus, Robert, Safety mechanism for a rotary hammer.
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  56. Schauer Ronald V., Speed control device for electrical motor-driven apparatus.
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  57. Sidhu, Dalwinder Singh, Speed controller for electric motor.
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  58. Doherty James E. (Barrington IL) Veoukas Stanley C. (Wheeling IL) Wendling Ernest J. (Algonquin IL), System for controlling energy output of combustion-powered, fastener-driving tool.
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  59. Bosch,Volker; Wirnitzer,Bernd, Torque limiting device for an electric motor.
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  60. Kust, Richard; Desrosiers, John Joseph; Steinmetz, Francis James; Ma, Dung; Desai, Siddharth, Torque-limiting screwdrivers.
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  61. Kust, Richard; Desrosiers, John Joseph; Steinmetz, Francis James; Ma, Dung; Desai, Siddharth, Torque-limiting screwdrivers.
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  62. Estep John M. (Granville Summit PA) Morris ; III Harry E. (Milan PA) Warner Donald R. (Columbia Cross Roads PA), Tube nut wrench.
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  63. Ichihashi, Naoto, Two-cycle engine and engine tool comprising the same.
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