EP0864402A1 - Process and device for detecting oil shortage of an electrically driven cutting knife of a hair cutting machine - Google Patents
Process and device for detecting oil shortage of an electrically driven cutting knife of a hair cutting machine Download PDFInfo
- Publication number
- EP0864402A1 EP0864402A1 EP19970120687 EP97120687A EP0864402A1 EP 0864402 A1 EP0864402 A1 EP 0864402A1 EP 19970120687 EP19970120687 EP 19970120687 EP 97120687 A EP97120687 A EP 97120687A EP 0864402 A1 EP0864402 A1 EP 0864402A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detection
- hair clipper
- cutting knife
- oil
- electrically driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/40—Lubricating
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/849—With signal, scale, or indicator
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/849—With signal, scale, or indicator
- Y10T83/866—Indicates wear
Definitions
- the invention relates to a method according to one of the Claims 1 to 6 and a device according to claim 7.
- the object of the invention is to overcome the disadvantages mentioned above to prevent.
- the motor of the hair clipper is in a housing behind a cutting head, for example arranged that he with his drive shaft with a rotating cams connected with an eccentric pin is.
- This pin moves a control or cam slot, around the rotating movements of the pin in an oscillating Movement of a knife lying on top of one another
- the Knives through the increased coefficient of friction a larger amount of Energy supplied by the motor is converted into thermal energy. This causes the temperature gradient to increase more sharply at the knife in the first minutes after Switch on the hair clipper. Due to that Rubbing the knives together becomes oscillatory Movement of the knife is damped unperiodically, which causes an increase in housing vibrations (structure-borne noise) and Sound level of the hair clipper results.
- the invention is based on several exemplary embodiments described in more detail.
- FIG. 1 shows a method for the detection of a Oil shortage of an electrically powered cutting knife Hair clipper (not shown) shown, wherein for detection an increased current consumption of the drive motor M ( Figure 2) is used such that the motor current I ( Figure 2) measured continuously (block 1) and with a predetermined temperature-dependent threshold value (block 2) of a comparator (block 3) is compared.
- This Threshold 2 should depend on the ambient temperature be, because of this the coefficient of friction of the knife with to be influenced. For example, is the measured Motor current I at least briefly (a few milliseconds) not dropped below threshold 2 (block 3), redeems Signal generator (block 4) a signal (block 5).
- the signal 5 is not in the normal Cutting operation triggers, but with an oiled knife is continuously switched on.
- FIG. 3 Another method for detecting an oil shortage electrically driven cutting knife of a hair clipper is shown in Figure 3, wherein for Detection of a lack of oil an increased cutting knife vibration noise is used in such a way that the Cutting knife vibration noise measured continuously (block 10) - for example using a structure-borne noise sensor - and with a predetermined threshold (block 11) of one Comparator (block 3) is compared.
- the measured cutting knife vibration noise 10 in one Period of 10s for example, not at least briefly (for example 10 ms) has dropped below the threshold 11, triggers a signal generator 4 a signal 5 from.
- an oil shortage is detected increased sound level of the hair clipper in such a way used that the sound level measured continuously (block 12) - for example using a microphone - and with a predetermined threshold value (block 13) from a comparator (Block 3) is compared.
- a signal generator 4 triggers a signal 5 out.
- one is used to detect an oil shortage increased cutting knife temperature used in such a way that the cutting knife temperature for example in the first Measured minute after switching on the machine (block 14) - For example by means of an appropriate temperature sensor - and with a predefined, ambient temperature-dependent Threshold (block 15) from a comparator (Block 3) is compared. For example, is the measured Cutting knife temperature gradient higher than a given one Threshold value 15, a signal generator 4 triggers a signal 5.
- the Force measured continuously for example using an appropriate pressure sensor (for example Resistance measuring bridge) - and with a given one Threshold (block 17) from a comparator (block 3) is compared.
- the measured force is in a period of 10s, for example, not at least briefly (e.g. 10ms) below the threshold 17 decreased, a signal generator 4 triggers a signal 5.
- a lower engine speed used so that the Engine speed measured continuously (block 18) - for example by means of a corresponding light barrier or the like - and with a predetermined threshold (block 19) of a comparator (block 3) is compared.
- the measured engine speed in one period of, for example, 10s not at least briefly (for Example 10 ms) has risen above the threshold 19, redeems Signal generator 4 a signal 5 off.
- the display 8 is one display device 21 driving detection device 20 shown, wherein Indicating an oil shortage, signal 5 is used.
- the display can be acoustic or / and visual.
- Post-oil device 22 can be activated, whereby a fully automatic re-oiling of the cutting knives takes place.
- the Refueling device 22 is provided with a - not shown - Provided oil reservoir, the post-oil device 22 with a refill indicator 23 is provided, which indicates that the Refill oil reservoir with oil and such is dimensioned that in professional use the Hair clippers, for example, only once a year Refill oil.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren nach einem der
Ansprüche 1 bis 6 und eine Einrichtung nach dem Anspruch 7.The invention relates to a method according to one of the
Die Schneidmesser von Haarschneidemaschinen müssen regelmäßig nachgeölt werden. Unterbleibt dies, verringert sich zuerst die Schneidleistung, später treten am Messer irreparable Schäden auf. Bisher entscheidet sich der Benutzer (Friseur) der Haarschneidemaschine subjektiv, ob das Messer nachgeölt werden muß. Hinzu kommt ein gewisses Maß an Bequemlichkeit, dieses Nachölen auf einen späteren Zeitpunkt zu verschieben. Dadurch ergeben sich in der Praxis oft zu große Nachölintervalle, die letztlich eine Zerstörung des Messers zur Folge haben können. Eine solche Haarschneidemaschine ist beispielsweise aus der DE 21 17 319 A bekannt.The cutting knives of hair clippers have to be oiled regularly. If this is not done, reduced first the cutting performance, later kick the knife irreparable damage. So far the has decided User (hairdresser) of the hair clipper subjectively whether the knife must be oiled. There is also a certain amount Level of convenience, this oiling on a later Time to postpone. This results in the Practice often too large oil intervals, which ultimately one Destruction of the knife can result. Such Hair clipper is for example from DE 21 17 319 A known.
Aufgabe der Erfindung ist es, die oben genannten Nachteile zu verhindern.The object of the invention is to overcome the disadvantages mentioned above to prevent.
Gelöst wird diese Aufgabe nach einem der Ansprüche 1 bis 7.
So gibt es sechs nebengeordnete Verfahrenslösungen und eine
Einrichtungslösung.This object is achieved according to one of
Bei der Haarschneidemaschine ist der Motor in einem Gehäuse hinter einem Schneidkopf zum Beispiel üblicherweise so angeordnet, daß er mit seiner Antriebswelle mit einem rotierenden Nocken mit einem exzentrischen Stift verbunden ist. Dieser Stift bewegt einen Steuer- bzw. Nockenschlitz, um die Drehbewegungen des Stiftes in eine oszillierende Bewegung des einen aufeinanderliegenden Messers in eine Richtung quer zur Achse des Stiftes umzusetzen. Bei einem sehr geringen Ölfilm zwischen den beiden Messern beginnen diese derart miteinander zu reiben, daß der erforderliche Kraftaufwand, um die Oszillation des bewegten Messern aufrecht zu erhalten, ansteigt. Dadurch steigt der Motorstrom an und die Drehzahl sinkt. Weiterhin wird an den Messern durch den erhöhten Reibwert eine größere Menge der vom Motor zugeführten Energie in Wärmeenergie umgewandelt. Dies bewirkt ein stärkeres Ansteigen des Temperaturgradienten am Messer in den ersten Minuten nach dem Einschalten der Haarschneidemaschine. Bedingt durch das Reiben der Messer aufeinander wird die oszillatorische Bewegung des Messers unperiodisch gedämpft, wodurch sich ein Anstieg der Gehäusevibrationen (Körperschall) und des Schallpegels der Haarschneidemaschine ergibt.The motor of the hair clipper is in a housing behind a cutting head, for example arranged that he with his drive shaft with a rotating cams connected with an eccentric pin is. This pin moves a control or cam slot, around the rotating movements of the pin in an oscillating Movement of a knife lying on top of one another To implement direction transverse to the axis of the pin. At a very little oil film between the two knives to rub them together so that the required Force to oscillate the moving knives maintain increases. This increases the Motor current on and the speed drops. Furthermore, the Knives through the increased coefficient of friction a larger amount of Energy supplied by the motor is converted into thermal energy. This causes the temperature gradient to increase more sharply at the knife in the first minutes after Switch on the hair clipper. Due to that Rubbing the knives together becomes oscillatory Movement of the knife is damped unperiodically, which causes an increase in housing vibrations (structure-borne noise) and Sound level of the hair clipper results.
Die Erfindung wird anhand mehrerer Ausführungsbeispiele näher beschrieben.The invention is based on several exemplary embodiments described in more detail.
Es zeigt:
Figur 1- ein erstes Ausführungsbeispiel als Blockschaltbild;
- Figur 2
- das erste Ausführungsbeispiel als Schaltbild;
Figur 3 bis 7- ein zweites bis sechstes Ausführungsbeispiel als Blockschaltbild;
- Figur 8
- eine Haarschneidemaschine mit einer Anzeigeeinrichtung, wahlweise mit einer Nachöleinrichtung und einer Nachfüllanzeige.
- Figure 1
- a first embodiment as a block diagram;
- Figure 2
- the first embodiment as a circuit diagram;
- Figure 3 to 7
- a second to sixth embodiment as a block diagram;
- Figure 8
- a hair clipper with a display device, optionally with a post-oil device and a refill indicator.
In der Figur 1 ist ein Verfahren zur Detektion eines
Ölmangels eines elektrisch angetrieben Schneidmessers einer
Haarschneidemaschine (nicht dargestellt) dargestellt, wobei
zur Detektion eine erhöhte Stromaufnahme des Antriebsmotors
M (Figur 2) derart herangezogen wird, daß der Motorstrom I
(Figur 2) laufend gemessen (Block 1) und mit einem
vorgegebenen temperaturabhängigen Schwellwert (Block 2) von
einem Komparator (Block 3) verglichen wird. Dieser
Schwellwert 2 sollte von der Umgebungstemperatur abhängig
sein, da von dieser die Reibwerte des Messers mit
beeinflußt werden. Ist zum Beispiel der gemessene
Motorstrom I zumindest kurzzeitig (wenige Millisekunden)
nicht unter den Schwellwert 2 gesunken (Block 3), löst ein
Signalgeber (Block 4) ein Signal (Block 5) aus. Hierdurch
wird sichergestellt, daß das Signal 5 nicht im normalen
Schneidbetrieb auslöst, jedoch bei ungeöltem Messer
fortwährend eingeschaltet ist.FIG. 1 shows a method for the detection of a
Oil shortage of an electrically powered cutting knife
Hair clipper (not shown) shown, wherein
for detection an increased current consumption of the drive motor
M (Figure 2) is used such that the motor current I
(Figure 2) measured continuously (block 1) and with a
predetermined temperature-dependent threshold value (block 2) of
a comparator (block 3) is compared. This
Threshold 2 should depend on the ambient temperature
be, because of this the coefficient of friction of the knife with
to be influenced. For example, is the measured
Motor current I at least briefly (a few milliseconds)
not dropped below threshold 2 (block 3), redeems
Signal generator (block 4) a signal (block 5). Hereby
it is ensured that the
Nach dem Einschalten (Schalter S) der Haarschneidemaschine
6 nach der Figur 2 wird ein Kondensator C über einen
Widerstand R 4 langsam aufgeladen. Sinkt der Strom I des
Motors M unter den mit Widerständen R1 und R3 eingestellten
Schwellwert, schaltet der Komparator 3 (U1A) um und der
Kondensator C wird über die Diode D1 entladen. Sinkt der
Motorstrom I jedoch nicht innerhalb von zum Beispiel 10
Sekunden zumindest kurzzeitig unter den Schwellwert 2, wird
der Kondensator C vollständig aufgeladen, der Signalgeber 4
(U1B) schaltet um und die Leuchtdiode D2 signalisiert
Ölmangel Der NTC kompensiert mit R1 und R3 die Temperaturabhängigkeit
des Messerreibwerts und des Motorstroms I.After switching on (switch S) the hair clipper
6 according to Figure 2, a capacitor C via a
Ein weiteres Verfahren zur Detektion eines Ölmangels eines
elektrisch angetriebenen Schneidmessers einer Haarschneidemaschine
ist in der Figur 3 dargestellt, wobei zur
Detektion eines Ölmangels ein erhöhtes Schneidmesservibrationsgeräusch
derart herangezogen wird, daß das
Schneidmesservibrationsgeräusch laufend gemessen (Block 10)
- zum Beispiel mittels eines Körperschallsensors - und mit
einem vorgegebenen Schwellwert (Block 11) von einem
Komparator (Block 3) verglichen wird. Ist beispielsweise
das gemessene Schneidmesservibrationsgeräusch 10 in einer
Periode von zum Beispiel 10s nicht zumindest kurzzeitig
(zum Beispiel 10ms) unter den Schwellwert 11 gesunken, löst
ein Signalgeber 4 ein Signal 5 aus.Another method for detecting an oil shortage
electrically driven cutting knife of a hair clipper
is shown in Figure 3, wherein for
Detection of a lack of oil an increased cutting knife vibration noise
is used in such a way that the
Cutting knife vibration noise measured continuously (block 10)
- for example using a structure-borne noise sensor - and with
a predetermined threshold (block 11) of one
Comparator (block 3) is compared. For example
the measured cutting
Nach der Figur 4 wird zur Detektion eines Ölmangels ein
erhöhter Schallpegel der Haarschneidemaschine derart
herangezogen, daß der Schallpegel laufend gemessen (Block
12) - zum Beispiel mittels eines Mikrofons - und mit einem
vorgegebenen Schwellwert (Block 13) von einem Komparator
(Block 3) verglichen wird. Ist beispielsweise der gemessene
Schallpegel in einer Periode von zum Beispiel 10s nicht
zumindest kurzzeitig (zum Beispiel 10ms) unter den
Schwellwert 13 gesunken, löst ein Signalgeber 4 ein Signal
5 aus.According to FIG. 4, an oil shortage is detected
increased sound level of the hair clipper in such a way
used that the sound level measured continuously (block
12) - for example using a microphone - and with a
predetermined threshold value (block 13) from a comparator
(Block 3) is compared. For example, is the measured
No sound level in a period of 10s, for example
at least briefly (for example 10ms) under the
Nach der Figur 5 wird zu Detektion eines Ölmangels eine
erhöhte Schneidmessertemperatur derart herangezogen, daß
die Schneidmessertemperatur zum Beispiel in der ersten
Minute nach Einschalten der Maschine gemessen (Block 14)
- zum Beispiel mittels eines entsprechenden Temperatursensors
- und mit einem vorgegebenen, umgebungstemperaturabhängigen
Schwellwert (Block 15) von einem Komparator
(Block 3) verglichen wird. Ist beispielsweise der gemessene
Schneidmessertemperaturgradient höher als ein vorgegebener
Schwellwert 15, löst ein Signalgeber 4 ein Signal 5 aus.According to FIG. 5, one is used to detect an oil shortage
increased cutting knife temperature used in such a way that
the cutting knife temperature for example in the first
Measured minute after switching on the machine (block 14)
- For example by means of an appropriate temperature sensor
- and with a predefined, ambient temperature-dependent
Threshold (block 15) from a comparator
(Block 3) is compared. For example, is the measured
Cutting knife temperature gradient higher than a given one
Zur Detektion eines Ölmangels wird nach der Figur 6 eine
erhöhte Kraft im Kraftweg zwischen Antriebswelle und dem
angetriebenen Schneidmesser derart herangezogen, daß die
Kraft laufend gemessen (Block 16) - zum Beispiel mittels
eines entsprechenden Drucksensors (zum Beispiel
Widerstandsmeßbrücke) - und mit einem vorgegebenen
Schwellwert (Block 17) von einem Komparator (Block 3)
verglichen wird. Ist beispielsweise die gemessene Kraft in
einer Periode von zum Beispiel 10s nicht zumindest
kurzzeitig (zum Beispiel 10ms) unter den Schwellwert 17
gesunken löst ein Signalgeber 4 ein Signal 5 aus. For the detection of an oil shortage according to FIG
increased force in the force path between the drive shaft and the
driven cutting knife used so that the
Force measured continuously (block 16) - for example using
an appropriate pressure sensor (for example
Resistance measuring bridge) - and with a given one
Threshold (block 17) from a comparator (block 3)
is compared. For example, the measured force is in
a period of 10s, for example, not at least
briefly (e.g. 10ms) below the
Zur Detektion eines Ölmangels wird nach der Figur 7 eine
niedrigere Motordrehzahl derart herangezogen, daß die
Motordrehzahl laufend gemessen (Block 18) - zum Beispiel
mittels einer entsprechenden Lichtschranke oder dergleichen - und
mit einem vorgegebenen Schwellwert (Block 19) von
einem Komparator (Block 3) verglichen wird. Ist
beispielsweise die gemessene Motordrehzahl in einer Periode
von zum Beispiel 10s nicht zumindest kurzzeitig (zum
Beispiel 10ms) über den Schwellwert 19 gestiegen, löst ein
Signalgeber 4 ein Signal 5 aus.According to FIG. 7, a
lower engine speed used so that the
Engine speed measured continuously (block 18) - for example
by means of a corresponding light barrier or the like - and
with a predetermined threshold (block 19) of
a comparator (block 3) is compared. Is
for example the measured engine speed in one period
of, for example, 10s not at least briefly (for
Example 10 ms) has risen above the
In der Figur 8 ist die eine Anzeigeeinrichtung 21
ansteuernde Detektionseinrichtung 20 dargestellt, wobei zum
Anzeigen eines Ölmangels das Signal 5 herangezogen ist. Die
Anzeige kann akustisch oder/und optisch erfolgen. Wahlweise
kann anstatt der Anzeigeeinrichtung 21 eine
Nachöleinrichtung 22 aktiviert werden, wodurch ein
vollautomatisches Nachölen der Schneidmesser erfolgt. Die
Nachöleinrichtung 22 ist mit einem - nicht dargestellten -
Ölreservoir versehen, wobei die Nachöleinrichtung 22 mit
einer Nachfüllanzeige 23 versehen ist, die anzeigt, daß das
Ölreservoir mit Öl nachzufüllen ist und derart
dimensioniert ist, daß beim professionellen Gebrauch der
Haarschneidemaschine zum Beispiel nur noch einmal pro Jahr
Öl nachzufüllen ist. 8 is one
- 11
- MotorstrommessungMotor current measurement
- 22nd
- Temperaturabhängiger SchwellwertTemperature-dependent threshold
- 33rd
- KomparatorComparator
- 44th
- SignalgeberSignal generator
- 55
- Signalsignal
- 66
- HaarschneidemaschineHair clipper
- 1010th
- SchneidmesservibrationsgeräuschmessungCutting knife vibration noise measurement
- 1111
- SchwellwertThreshold
- 1212th
- SchallpegelmessungSound level measurement
- 1313
- SchwellwertThreshold
- 1414
- SchneidmessertemperaturmessungCutting knife temperature measurement
- 1515
- Umgebungstemperaturabhängiger SchwellwertAmbient temperature-dependent threshold
- 1616
- KraftmessungForce measurement
- 1717th
- SchwellwertThreshold
- 1818th
- MotordrehzahlmessungEngine speed measurement
- 1919th
- SchwellwertThreshold
- 2020th
- ÖlmangeldetektionseinrichtungOil shortage detection device
- 2121
- AnzeigeeinrichtungDisplay device
- 2222
- NachöleinrichtungRefueling device
- 2323
- NachfüllanzeigeRefill indicator
- SS
- Schaltercounter
- CC.
- Kondensatorcapacitor
- II.
- MotorstromMotor current
- MM
- Motorengine
-
R 1..5
R 1..5 - Widerstandresistance
- D1D1
- Diodediode
- D2D2
- Leuchtdiodeled
Claims (10)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19710267 | 1997-03-13 | ||
DE19710267 | 1997-03-13 | ||
DE19717055 | 1997-04-23 | ||
DE19717055 | 1997-04-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0864402A1 true EP0864402A1 (en) | 1998-09-16 |
EP0864402B1 EP0864402B1 (en) | 2002-01-30 |
Family
ID=26034792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970120687 Expired - Lifetime EP0864402B1 (en) | 1997-03-13 | 1997-11-26 | Process and device for detecting oil shortage of an electrically driven cutting knife of a hair cutting machine |
Country Status (5)
Country | Link |
---|---|
US (2) | US5970831A (en) |
EP (1) | EP0864402B1 (en) |
JP (1) | JPH10258189A (en) |
DE (1) | DE59706233D1 (en) |
ES (1) | ES2170323T3 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002036178A (en) * | 2000-07-21 | 2002-02-05 | Fuji Photo Film Co Ltd | Method and device for predicting service life of cutter |
SE517931C2 (en) * | 2000-11-10 | 2002-08-06 | Ericsson Telefon Ab L M | Device for cutting an optical fiber |
US7437274B2 (en) * | 2002-02-08 | 2008-10-14 | Ford Motor Company | Method and apparatus for objective measurement of noise |
US7142107B2 (en) | 2004-05-27 | 2006-11-28 | Lawrence Kates | Wireless sensor unit |
DE102005019263A1 (en) * | 2005-04-26 | 2006-11-09 | Saurer Gmbh & Co. Kg | Fiber cable cutter |
DE102005023256A1 (en) * | 2005-05-20 | 2006-11-23 | Deere & Company, Moline | Monitoring device and a method for monitoring the function of the components of an agricultural machine |
EP1905200A1 (en) | 2005-07-01 | 2008-04-02 | Terahop Networks, Inc. | Nondeterministic and deterministic network routing |
US8230600B2 (en) * | 2007-09-17 | 2012-07-31 | The Gillette Company | Cartridge detachment sensor |
WO2009151877A2 (en) | 2008-05-16 | 2009-12-17 | Terahop Networks, Inc. | Systems and apparatus for securing a container |
CN105283276B (en) * | 2013-05-30 | 2018-08-07 | 皇家飞利浦有限公司 | Equipment and system for nursing hair and/or skin |
US11504866B2 (en) * | 2017-06-29 | 2022-11-22 | BIC Violex Single Member S.A. | Shaver and methods for detecting shaving characteristics |
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US5121541A (en) * | 1991-11-12 | 1992-06-16 | Patrakis Strati G | Electric razor with built-in mister |
DE4210612A1 (en) * | 1992-03-31 | 1993-10-07 | Siemens Ag | Lubrication state determining appts. eg for electric motor - contains microprocessor evaluating bearing revolution rate and temp. during machine operation. |
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DE2117319A1 (en) * | 1971-04-08 | 1972-10-12 | Rochelt, Günter, 7900 Ulm | Device for cutting hair |
NL8903065A (en) * | 1989-12-14 | 1991-07-01 | Philips Nv | ELECTRIC RAZOR. |
AT403958B (en) * | 1992-02-17 | 1998-07-27 | Payer Lux Elektroprod | ELECTRIC SHAVER |
-
1997
- 1997-11-26 ES ES97120687T patent/ES2170323T3/en not_active Expired - Lifetime
- 1997-11-26 DE DE59706233T patent/DE59706233D1/en not_active Expired - Lifetime
- 1997-11-26 EP EP19970120687 patent/EP0864402B1/en not_active Expired - Lifetime
-
1998
- 1998-01-27 US US09/014,275 patent/US5970831A/en not_active Expired - Lifetime
- 1998-03-13 JP JP8260498A patent/JPH10258189A/en active Pending
-
1999
- 1999-08-18 US US09/376,924 patent/US6176166B1/en not_active Expired - Lifetime
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---|---|---|---|---|
US5121541A (en) * | 1991-11-12 | 1992-06-16 | Patrakis Strati G | Electric razor with built-in mister |
DE4210612A1 (en) * | 1992-03-31 | 1993-10-07 | Siemens Ag | Lubrication state determining appts. eg for electric motor - contains microprocessor evaluating bearing revolution rate and temp. during machine operation. |
Also Published As
Publication number | Publication date |
---|---|
JPH10258189A (en) | 1998-09-29 |
EP0864402B1 (en) | 2002-01-30 |
US5970831A (en) | 1999-10-26 |
DE59706233D1 (en) | 2002-03-14 |
ES2170323T3 (en) | 2002-08-01 |
US6176166B1 (en) | 2001-01-23 |
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