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US4384180A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric shaver having plural switch assembly and illuminated counter mechanism

Assignee: US Philips Corp
•
Filing: 1981-06-04
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Granted: 1983-05-17
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Expires: 2001-06-04
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Abstract

Abstract There is provided a battery-operated electrical appliance such as an electric shaver including a mechanism for counting the number of times the appliance is operated. A first switch for activating the appliance is positioned in the mechanism housing, together with a rotatably mounted member provided with indicia for indicating the number of times the first swtich has been operated. An actuating member brings the movable contact and the fixed contact of the first switch into and out of engagement with each other, the actuating member including an element for engagement with the indicating member to successively rotate the same one indicia unit each time the first switch is actuated. A second switch is associated in the housing with the indicating member and has a movable contact and a fixed contact arranged to be brought into engagement after a predetermined number of successive partial rotations of the indicating member. An indicator lamp is activated by the second switch, the indicator lamp being de-activated each time the contacts of the first switch are disengaged.

Inventors

  • 👤 Gerald Meijer
  • 👤 Mosayoshi Takaoka
  • 👤 Koichi Hayashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 15:51
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/3806; B26B19/382; B26B19/14; B26B19/3873; B26B19/388; B26B19/3886; B26B21/00; B26B21/40; B26B21/4081; B26B21/4087; G; G06; G06M; G06M3/00; G06M3/02; Y; Y10; Y10S; Y10S30/00; Y10S30/01

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 194 words
A battery-operated electrical appliance such as an electric shaver which includes a mechanism for counting the number of times said appliance is operated, said counting mechanism comprising a housing formed by a base plate and a spaced-apart wall; a first switch for activating the appliance positioned in said housing and having a movable contact and a fixed contact; a member provided with indicia for indicating the number of times said first switch has been operated and rotatably mounted in said housing; an actuating member for bringing said movable contact and said fixed contact of said first switch into and out of engagement with each other, said actuating member including an element for engagement with said indicating member to successively rotate the same one indicia unit each time said first switch is actuated; a second switch associated in the housing with the indicating member and having a movable contact and a fixed contact arranged to be brought into engagement after a predetermined number of successive partial rotations of said indicating member; and an indicator lamp activated by said second switch, said indicator lamp being de-activated each time the contacts of the first switch are disengaged.
Claim 2
Dependent Claim 194 words
A battery-operated electrical appliance such as an electric shaver which includes a mechanism for counting the number of times said appliance is operated, said counting mechanism comprising a housing formed by a base plate and a spaced-apart wall; a first switch for activating the appliance positioned in said housing and having a movable contact and a fixed contact; a member provided with indicia for indicating the number of times said first switch has been operated and rotatably mounted in said housing; an actuating member for bringing said movable contact and said fixed contact of said first switch into and out of engagement with each other, said actuating member including an element for engagement with said indicating member to successively rotate the same one indicia unit each time said first switch is actuated; a second switch associated in the housing with the indicating member and having a movable contact and a fixed contact arranged to be brought into engagement after a predetermined number of successive partial rotations of said indicating member; and an indicator lamp activated by said second switch, said indicator lamp being de-activated each time the contacts of the first switch are disengaged.
Claim 3
Dependent Claim 28 words
An electrical appliance according to claim 1, in which the indicating member comprises a rotary disc having a central aperture, the indicator lamp being situated in said aperture.
Claim 4
Dependent Claim 36 words
An electrical appliance according to claim 2, in which the movable contact of the second switch is attached to the rotary disc, and the fixed contact of said second switch is connected to the base plate.

References Cited (Backward Citations)

US3176106A Cited
US3349211A Cited
US3328542A Cited
US3803372A Cited
US4112271A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-05-16 1986-11-15 1987-05-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-05-16 1990-11-15 1991-05-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-05-16 1994-11-15 1995-05-17 $7700.00 Window Closed / Lapsed

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