IT7923952A0 - Limitatore di velocita' massima per utensili elettrici. - Google Patents
Limitatore di velocita' massima per utensili elettrici.Info
- Publication number
- IT7923952A0 IT7923952A0 IT7923952A IT2395279A IT7923952A0 IT 7923952 A0 IT7923952 A0 IT 7923952A0 IT 7923952 A IT7923952 A IT 7923952A IT 2395279 A IT2395279 A IT 2395279A IT 7923952 A0 IT7923952 A0 IT 7923952A0
- Authority
- IT
- Italy
- Prior art keywords
- maximum speed
- power tools
- speed limiter
- limiter
- tools
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/06—Switches operated by change of speed
- H01H35/10—Centrifugal switches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/90—Specific system operational feature
- Y10S388/903—Protective, e.g. voltage or current limit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Sawing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
- Portable Power Tools In General (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Control Of Ac Motors In General (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Discharge Heating (AREA)
- Lubricants (AREA)
- Gripping On Spindles (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT23952/79A IT1165132B (it) | 1979-06-28 | 1979-06-28 | Limitatore di velocita' massima per utensili elettrici |
US06/160,583 US4371906A (en) | 1979-06-28 | 1980-06-18 | Overspeed protective apparatus for a portable tool |
AT80103625T ATE6326T1 (de) | 1979-06-28 | 1980-06-26 | Vorrichtung zur drehzahlbegrenzung fuer ein tragbares werkzeug. |
EP80103625A EP0021434B1 (en) | 1979-06-28 | 1980-06-26 | Overspeed protective apparatus for a portable tool |
MX182920A MX147858A (es) | 1979-06-28 | 1980-06-26 | Mejoras en dispositivo de proteccion de velocidad excesiva en una herramienta portatil |
DE8080103625T DE3066575D1 (en) | 1979-06-28 | 1980-06-26 | Overspeed protective apparatus for a portable tool |
AU59718/80A AU539406B2 (en) | 1979-06-28 | 1980-06-27 | Overspeed centrifugal switch |
JP8726480A JPS5638990A (en) | 1979-06-28 | 1980-06-28 | Superroverspeed protecting device for portable tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT23952/79A IT1165132B (it) | 1979-06-28 | 1979-06-28 | Limitatore di velocita' massima per utensili elettrici |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7923952A0 true IT7923952A0 (it) | 1979-06-28 |
IT1165132B IT1165132B (it) | 1987-04-22 |
Family
ID=11211097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23952/79A IT1165132B (it) | 1979-06-28 | 1979-06-28 | Limitatore di velocita' massima per utensili elettrici |
Country Status (8)
Country | Link |
---|---|
US (1) | US4371906A (it) |
EP (1) | EP0021434B1 (it) |
JP (1) | JPS5638990A (it) |
AT (1) | ATE6326T1 (it) |
AU (1) | AU539406B2 (it) |
DE (1) | DE3066575D1 (it) |
IT (1) | IT1165132B (it) |
MX (1) | MX147858A (it) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3323059A1 (de) * | 1983-06-27 | 1985-01-10 | Robert Bosch Gmbh, 7000 Stuttgart | Elektrische arbeitsmaschine mit ueberdrehsicherung |
GB2269244B (en) * | 1992-07-30 | 1996-05-08 | Yang Tai Her | Compound motor control circuit |
GB9506460D0 (en) * | 1995-03-29 | 1995-05-17 | Switched Reluctance Drives Ltd | Apparatus and method for starting a single-phase variable reluctance motor |
US6768278B2 (en) | 2002-08-06 | 2004-07-27 | Honeywell International, Inc. | Gas turbine engine starter generator with switchable exciter stator windings |
US6906479B2 (en) * | 2002-08-06 | 2005-06-14 | Honeywell International, Inc. | Gas turbine engine starter generator with multiple windings on each exciter stator pole |
US6909263B2 (en) * | 2002-10-23 | 2005-06-21 | Honeywell International Inc. | Gas turbine engine starter-generator exciter starting system and method including a capacitance circuit element |
US20040183308A1 (en) * | 2003-03-17 | 2004-09-23 | Mingzhou Xu | Gas turbine engine starter generator that selectively changes the number of rotor poles |
EP1901891B1 (en) * | 2005-07-11 | 2016-09-28 | Black & Decker Inc. | Soft start for electric motor of a power tool |
WO2007128245A1 (fr) * | 2006-05-04 | 2007-11-15 | Otis Elevator Company | Dispositif de protection contre l'excès de vitesse pour bandes ou escaliers roulants |
WO2008048615A2 (en) | 2006-10-17 | 2008-04-24 | Desa Ip, Llc | Hybrid electric device |
US20080120955A1 (en) * | 2006-10-17 | 2008-05-29 | Lucas Delbert R | Hybrid electric lawnmower |
US8732896B2 (en) | 2006-10-17 | 2014-05-27 | Mtd Products Inc | Hybrid electric cleaning device |
US7479754B2 (en) * | 2006-10-17 | 2009-01-20 | Desa Ip Llc | Hybrid electric lawnmower |
FI119135B (fi) * | 2006-10-17 | 2008-07-31 | Abb Oy | Tahtikone |
US7728534B2 (en) * | 2006-10-17 | 2010-06-01 | Mtd Products Inc | Hybrid electric lawnmower |
US8076873B1 (en) | 2007-06-01 | 2011-12-13 | Mtd Products Inc | Hybrid outdoor power equipment |
JP5571805B2 (ja) * | 2010-02-17 | 2014-08-13 | フスクバルナ アクティエボラーグ | 動力工具 |
US10124465B2 (en) | 2013-05-08 | 2018-11-13 | Atlas Copco Industrial Technique Ab | Pneumatic power tool with an over-speed safety device |
US10003135B1 (en) * | 2017-03-23 | 2018-06-19 | Atl Technology, Llc | Mechanical use-limiting connector for electrical tool |
US10665995B2 (en) | 2017-03-23 | 2020-05-26 | Atl Technology, Llc | Mechanical use-limiting connector for electrical tool |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US411783A (en) * | 1889-10-01 | Governor for electro-dynamic machines | ||
GB872314A (en) * | 1957-08-21 | 1961-07-05 | Erwin Murschel | Improvements relating to portable grinding machines |
DE1154858B (de) * | 1962-12-13 | 1963-09-26 | Ernst Weiss Dipl Kfm | Elektromotor, insbesondere Kleinstmotor, mit Vorrichtung zur selbsttaetigen Drehzahlregelung |
DE1230487B (de) * | 1963-01-17 | 1966-12-15 | Licentia Gmbh | Drehzahlumschaltbares elektrisches Handwerkzeug |
US3286150A (en) * | 1964-09-28 | 1966-11-15 | Black & Decker Mfg Co | Motor speed control means |
US3510615A (en) * | 1967-10-10 | 1970-05-05 | William L Stelter | Adjustable mounting means for speed responsive switch |
US3564372A (en) * | 1968-11-29 | 1971-02-16 | Black & Decker Mfg Co | Electrical power control means |
US3860905A (en) * | 1972-07-05 | 1975-01-14 | Mario Guerini | Speed indicator and speed signalling device for vehicles in general |
DE2437541A1 (de) * | 1974-08-03 | 1976-02-19 | Licentia Gmbh | Elektrowerkzeug mit einer einrichtung zur drehzahlbegrenzung |
-
1979
- 1979-06-28 IT IT23952/79A patent/IT1165132B/it active
-
1980
- 1980-06-18 US US06/160,583 patent/US4371906A/en not_active Expired - Lifetime
- 1980-06-26 EP EP80103625A patent/EP0021434B1/en not_active Expired
- 1980-06-26 MX MX182920A patent/MX147858A/es unknown
- 1980-06-26 AT AT80103625T patent/ATE6326T1/de not_active IP Right Cessation
- 1980-06-26 DE DE8080103625T patent/DE3066575D1/de not_active Expired
- 1980-06-27 AU AU59718/80A patent/AU539406B2/en not_active Ceased
- 1980-06-28 JP JP8726480A patent/JPS5638990A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5638990A (en) | 1981-04-14 |
MX147858A (es) | 1983-01-24 |
AU539406B2 (en) | 1984-09-27 |
ATE6326T1 (de) | 1984-03-15 |
DE3066575D1 (en) | 1984-03-22 |
EP0021434B1 (en) | 1984-02-15 |
US4371906A (en) | 1983-02-01 |
EP0021434A1 (en) | 1981-01-07 |
AU5971880A (en) | 1981-01-08 |
IT1165132B (it) | 1987-04-22 |
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