US3925629A - Variable time switch with variable control cam structure for different time periods and modes of operation - Google Patents

Variable time switch with variable control cam structure for different time periods and modes of operation Download PDF

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Publication number
US3925629A
US3925629A US515143A US51514374A US3925629A US 3925629 A US3925629 A US 3925629A US 515143 A US515143 A US 515143A US 51514374 A US51514374 A US 51514374A US 3925629 A US3925629 A US 3925629A
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United States
Prior art keywords
switch
time
cam
contacts
open
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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.)
Expired - Lifetime
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US515143A
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English (en)
Inventor
Jr Harry Albinger
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TELECHRON Inc A CORP OF
General Electric Co
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General Electric Co
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Application filed by General Electric Co filed Critical General Electric Co
Priority to US515143A priority Critical patent/US3925629A/en
Priority to GB49548/74A priority patent/GB1488026A/en
Priority to DE19752504779 priority patent/DE2504779A1/de
Priority to JP50017337A priority patent/JPS5148187A/ja
Application granted granted Critical
Publication of US3925629A publication Critical patent/US3925629A/en
Assigned to CHASE MANHATTAN BANK, N.A., THE reassignment CHASE MANHATTAN BANK, N.A., THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FREDERIKSPLEIN HOLDING 1970 B.V., TIMEX CLOCK COMPANY, A DE CORP., TIMEX COMPUTERS LTD., A DE CORP., TIMEX CORPORATION, A DE CORP., TIMEX ENTERPRISES, INC., A BERMUDA CORP., TIMEX GROUP LTD., A BERMUDA CORP., TIMEX MEDICAL PRODUCTS LTD., A BERMUDA CORP., TIMEX N.V.
Assigned to TELECHRON, INC., A CORP. OF MA reassignment TELECHRON, INC., A CORP. OF MA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TIMEX CORPORATION A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
    • G04C23/34—Mechanisms continuously running to relate the operation(s) to the time of day with provision for automatic modification of the programme, e.g. on Sunday
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/02—Constructional details
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53478—Means to assemble or disassemble with magazine supply

Definitions

  • a time switch for automatically opening and closing switch contacts at pre-set times on consecutive days wherein an automatic cam is provided for automatically turning the switch ON and OFF at the same times on a number of consecutive days and a variable 'cam is provided for actuating the switch at preprogrammed different times on consecutive days.
  • the AUTOMATIC cam is arranged for operating one pair of switch contacts while the VARIABLE cam is arranged for operating a second pair of switch contacts.
  • a rotatable selector knob is provided with lugs for holding one or the other or both of said pairs of switch contacts in an open position to provide AUTO- MATIC, VARIABLE, manual ON and manual OFF operation of the switch.
  • This invention relates to a time switch and, more particularly, to a household time switch which may be used for automatically turning lights on or off at desired times during consecutive days of the week and which may also be used for controlling devices such as coffeemakers, radios, and similar electrical appliances.
  • time switches of this type it has been common practice to provide a time of day dial at the front of the timer having ON and OFF tabs which are selectively positionable around the dial for setting the desired times of day for turning the lights or appliances on and off.
  • ON and OFF tabs which are selectively positionable around the dial for setting the desired times of day for turning the lights or appliances on and off.
  • timers Many people have used such timers to turn their house lights on and off during consecutive days while they are on vacation in order to give their home the appearance that it is occupied. With a conventional timer of this type the lights would be turned ON and OFF at precisely the same time each day of the week, and a burglar might not be fooled into believing that the house is occupied. Thus, it is desirable to provide a timer which may be pre-set to automatically turn the house lights ON and OFF at different times on a number of consecutive days of the week. For example, my unique timer may be pre-set to turn the lights on at 7:00 P.M. one day, 6:30 P.M. the next day, and 7:30 P.M.
  • the lights would be turned off at 11:00 P.M. on the first day, 11:30 P.M. on the second day, and :30 FM. on the third day.
  • the home would have a more lived-in appearance to a casual observer than if the lights were turned on and off at precisely the same times each day.
  • a time switch which may be used for turning lights on and off automatically at the same times on consecutive days of the week.
  • an electric motor 14 drives reduction gearing 16 which in turn rotates a shaft 18.
  • the shaft 18 carries a 24-hour dial 20 which carries ON and OFF trip levers 22 and 24, respectively.
  • the positions of the ON and OFF trip levers on the 24-hour dial 20 may be manually set by a user of the time switch to turn the lights on and off at desired times.
  • the overall construction of a preferred embodiment of my timer is generally similar to the construction shown in the patent and many of the parts shown in the patent may also be utilized in the construction of my improved variable timer.
  • a time switch including a 24-hour dial 17 which is provided with ON and OFF trip levers for automatically turning a switch on and off, and at the time switch includes a mechanism which may be set to turn the switch on and off at different times on consecutive days of the week.
  • a programmed variable switch ON time is achieved by a cam 50-83 and ON 5 trip lever 85
  • a programmed variable switch OFF time is achieved by a cam 50-43 and OFF trip lever 45.
  • a plunger or push button 61 at the rear of the time switch is pushed inwardly and offset axially until an annular groove or indent 63 engages the back plate 13 adjacent the opening 14 and retains the assembly until released.
  • the forward movement of push button 61 urges the plunger 64 to move forwardly sufficiently to engage each of the arms 55 to 58 of the cam means 50 in order to change the position of the cam 50 and its associated trip lever 45 or 85 for different operation on consecutive days of the week.
  • This invention is concerned with such time switch mechanisms and, more particularly, with a unique reliable low-cost construction for achieving automatic or variable programmed switch ON and OFF times on consecutive days of the week.
  • a time switch includes a switch mechanism having closed ON positions and open OFF positions, and a switch actuator is positioned adjacent to the switch mechanism for actuating the switch to one of its ON or OFF positions.
  • a time of day member is continuously rotated as a function of time by the time switch and is positioned adjacent to the switch actuator.
  • the time of day member has an OFF member which is selectively positionable to set the time that it is desired to have the switch turned off, and the time of day member also has an ON member which is selectively positionable for setting the time that it is desired to have the switch actuator move the switch mechanism to a closed ON position.
  • the switch actuator includes a first AUTOMATIC cam which is arranged for engagement with the switch mechanism for opening and closing the switch at the same time during a number of consecutive complete rotations of the time of day member at the times set by the selectively positionable ON and OFF members.
  • the switch actuator also includes a second VARIABLE cam which is positioned adjacent to the switch for opening and closing the switch at different times than the times set by the selectively positionable ON and OFF members in order to open and close the switch at different times during consecutive complete rotations of the time of day member.
  • a selector means is provided for manually selecting the operation of the switch by the AUTOMATIC cam or the VARIABLE cam.
  • the selector knob may be rotated to one position to turn the switch to its manual ON position, to an AUTOMATIC position to permit the automatic cam to operate one pair of contacts, to a manual OFF position to hold both pairs of contacts in their open position, or to a VARIABLE position to permit the variable cam to open and close one of the pairs of contacts while the other pair of contactsis held in its open position.
  • FIG. 4 is a cross-s'ectionalview of the time switch illustrated in FIG. 2 taken along the line 4-4 of FIG. 2;
  • FIG. 5 is an exploded perspective view of the time switch illustrated in FIG. 1;
  • FIG. 6 is a fragmentary side elevational view of the automatic and variable cams of the time switch illustrated in FIG. 1;
  • FIG. 7 is acrosssectional view of the ON cam por- 'tion of the automatic cam taken along the line 7-7 of FIG 1 'FIG. 8 is across-sectional view of the OFF portion of the automatic cam taken along the line 8-8 of FIG. 6;
  • FIG. 9 is across-sectional view of the ON portion of the variable cam taken along the line 9--9 of FIG. 6; .
  • FIG. 10 is a cross-sectional view of the OFF cam per tion of the variablecam taken along the line 1010 of FIG. 6; .
  • FIG. 11 is a fragmentary top plan view of the selector knob time switch illustrated in FIG..2;
  • FIG. 12 is a fragmentary exploded perspective view of the automatic and variable cams, the automatic pair of contacts and the variable pair of contacts, and the selector knob and'lug construction along with a detent means for holding the selector knob in any one of its fouridifferent positions of the time switch illustrated in FIG. 2;
  • FIG. 13 is a chart showing the relative positions of the switch blades and the selector knob lugs of the time 4 switch in its manual OFF, AUTOMATIC, manual ON, and VARIABLE positions;
  • FIG. 14 is a fragmentary top plan view of the switch actuator partially cut away to show its detent construction for holding the actuator in any one of its positions; and 1
  • FIG. 15 is a circuit diagram of the time switch shown in FIG. 1.
  • the time switch includes switch contacts generally indicated by reference numeral 2 for controlling operation of the lights in a home, an electrical Coffeemaker, a radio or similar appliance.
  • a synchronous electric motor4 is provided for operating the switch contacts of pre-set desired times, and as shown, the motor 4 drives a reduction gearing unit 6 which in turn rotates a shaft'8.
  • the shaft 8 carries a 24-hour dial 10 which carries ON and OFF members 12 and 14, respectively.
  • the positions of the ON and OFF members on the 24-hour dial 10 may be manually set by the user of the timeswitch to turn the lights ON and OFF at the desired times.
  • the dial l0 drives the members 12 and 14 and at the appropriate times the members 12 and 14 operate a switch actuator which is generally designated by reference numeral 20 to open and close the switch contacts 2 at the desired times.
  • the switch- 2 includes two pairs of switch contacts which are connected in parallel with each other'and in series with inlet prong 24 and outlet receptacle 28 to control the lights or other appliance.
  • upper pair of contacts 30 and 32 are arranged to be operated by an upper AUTOMATIC cam .34 for opening and closing the upper switch contacts at the times which have been pre-set by the ON and OFF members 12 and 14, while a lowerpair of contacts 40 and 42 are arranged to be operated by a VARIABLE cam 44 at times which may vary approximately one-half hour depending on the shape of cam 44 from the times which have been set by the ON and OFF members 12 and 14.
  • FIGS. 12 and 15 the switch- 2 includes two pairs of switch contacts which are connected in parallel with each other'and in series with inlet prong 24 and outlet receptacle 28 to control the lights or other appliance.
  • upper pair of contacts 30 and 32 are arranged to be operated by an upper AUTOMATIC cam .34 for opening and closing the upper switch contacts at the times which have been pre-set by the ON and
  • the switch contacts 30, 32, 40 and 42 are connected to switch blades 46, 48, 50 and 52, respectively, and the switch blades 48'and 5 2 may be integrally formed with a terminal plate 54 while the blades 46 and 50 may be integrally formed with a plate 56.
  • a manually operable selector member is uniquely located with respect to the switch blades 46, 48, 50 and 52 and the AUTOMATIC and VARIABLE cams 34 and 44, respectively, so that the time switch may be conveniently set for automatic or variable operation or the switch may be turned manually ON or manually OFF by simply rotating a selector knob 58 to one of its four positions, as shown in FIGS. 1, 11, 12 and 13. With particular reference to FIGS.
  • the rotatable selector member 58 includes a shaft portion 60 and a plurality of lugs 62, 64 and 66 for manually holding both of the pairs of switch contacts in a manual OFF open position, for manually holding one of the pair of contacts in a closed manual ON position, for manually holding the variable contacts 40 and 42 in an open position to permit the automatic switch blades 46 and 48 to be moved to their open and closed positions by the automatic cam 34 of the switch actuator 20, and for holding the automatic switch blades 46 and 48 in their open position to enable the switch to be controlled by the variable cam 44 of the switch actuator 20.
  • the lug 62 When the selector knob 58 is rotated to the AUTO- MATIC position, the lug 62 will be removed from switch blade 48 and the lug 66 will be moved into engagement with switch blade 50 to hold variable contact 40 away from contact 42 to hold the lower pair of blades in their open position. While the lower contacts 40 and 42 are held open, the upper AUTOMATIC cam 34 will open and close the switch contacts 30 and 32 at the times which have been pre-set by the ON OFF members 12 and 14, respectively.
  • variable cam 44 may open and close the variable contacts 40 and 42 at the variable different times which have been preprogrammed by the shape of the variable cam 44.
  • a detent arrangement may be provided for holding the selector knob 58 in any one of its four positions.
  • a resilient arm 70 may be fixed to the upper portion of the selector shaft 60 and may extend downwardly along the shaft for cooperation with a plurality of notches 72, 74, 76 and 78 which may be formed in a plastic member 75 that is fixed to the time switch casing.
  • the notches 72, 74, 76 and 78 correspond with the indicia VARIABLE, MANUAL OFF, AUTOMATIC and MANUAL ON, respectively, that may be provided on the outer casing of the time switch as shown in FIG. 1.
  • the ON and OFF members 12 and 14 are constructed for rotating the switch actuating mechanism 20 during pre-determined ON and OFF time periods on a number of consecutive days of the week.
  • the ON and OFF members rotate the switch actuating mechanism 20 and, more particularly, a segmented gear 80 of the switch actuating mechanism during two 1% hour periods of time on 3 consecutive days of the week.
  • the two periods of time for each day correspond to the periods of time during which it is desired to have the switch moved to its ON or OFF position.
  • the ON member is provided with a gear segment 82 for rotating a segment of the segmented gear 80 during one 1% hour period of ON time, and an OFF gear segment 84 of the OFF member 14 is provided for rotating the segmented gear 80 during a succeeding 1% hour period of OFF time.
  • the AUTOMATIC and VARIABLE cams 34 and 44 on the switch actuator 20 could be shaped to turn the switch on at any time during one 1% hour period of ON time and turn the switch off at any time during a l /2 hour period of OFF time.
  • the automatic cam 34 is symmetrically shaped so that it will turn the automatic switch contacts 30 and 32 ON and OFF at the same time on three consecutive days of the week while the variable cam 44 is non-symmetrically shaped so that it will turn the switch ON and OFF at different times on 3 consecutive days of the week.
  • the segmented gear may be readily connected to the automatic variable cam 34, 44 by means of a hexagonal shaft 86 which is integrally formed with the gear 80 for cooperation with a hexagonal recess 88 that is integrally formed with the automatic variable cam 34, 44.
  • the AUTOMATIC cam 34 is provided with three equally spaced ON cam surfaces 100, 102 and 104 and three equally spaced OFF cam surfaces 106, 108 and 110.
  • the VARIABLE cam is provided with three unequally spaced ON cam surfaces 112, 114 and 116 and three unequally spaced OFF cam surfaces 1 18, 120 and 122.
  • the sector gear 80 has one tooth missing from each 60 segment of the gear and the first gear tooth of each sector is made somewhat longer than the other teeth in order to ensure positive engagement of the ON and OFF sector gears 82 and 84 with the first tooth of each segment of gear 80.
  • a spring-loaded detent mechanism is provided for holding the switch actuator in any one of its six positions and for also rotating the sector gear a slight amount in the event that one of the ON or OFF sector gears 82 or 84 does not complete an incremental rotation of the sector gear.
  • a ratchet wheel 126 may be integrally formed with the gear segment 80 for cooperation with a pawl lever 128.
  • the pawl lever 128 is spring-urged toward the ratchet wheel 126 by means of 1 spring 130 for ensuring accurate positioning of the seclower which is arranged for movement by the ON cam surfaces 100, 102 and 104 while the off switch blade 48 includes a cam follower which'is arranged for movement by the OFF cam surfaces 106, 108 and 110.
  • the selector knob lug 66 holds 7 the variable switch blades 50 and 52 in their open position, the automatic switch blades 46 and 48 ride on the ON and OFF cam surfaces of the automatic cam 34.
  • ON gear segment 82 will rotate segmented gear 80 one 1% hour increment and, as shown in FIG. 12, ON cam surface 104 will be rotated counterclockwise.
  • the ON cam surfaces 100, 102 and 104 are spaced exactly 120 with respect to each other while the OFF cam surfaces 106, 108 and 110 are also spaced exactly 120 with respect to each other.
  • the cam follower drop-offs will occur at the same relative position of the segmented gear 80 and its actuating, ON and OFF gear segments 82 and 84, and the automatic gear will function to turn the lights on and off at the same times which have been set by the ON and OFF members night after night.
  • the cam follower drop-off points are selected so that dropoff occurs at the instant that the ON and OFF pointers are moved-in line with the Time Now indicator shown in FIG.
  • cams 100, 102, 104, 106, 108 and .1 l0 are located with respect to the gear sectors of gear 80 so that ON and OFF switching will occur at the midpoint-of each sector of the gear and at the mid-point of the 1% hour time span.
  • 116, 118, 120 and 122 are arranged with respect to 8 each other so that the time for turning the lights on and off will vary plus or minus one-half hour from a middle ON or OFF cam surface with respect to the other cam surfaces.
  • my unique timer may be pre-set to its VARIABLE position to turn the lights on at 7:00 P.M. one day, 6:30 P.M. the next day, and 7:30 P.M. the following day and, during the 3 days mentioned, the lights would be turned off at 11:00 P.M. on the first day, 11:30 P.M. on the second day, and :30PM. on the third day.
  • the ON and OFF members 81 and 83 which rotate with the time of day dial 10 are constructed so that they may be manually positionable around the dial to set the desired ON and OFF times. Toachieve this, as shown in FIGS. 1, 3, 4 and 5 the members 81 and 83 are pref erably formed of plastic and a plurality of ratchet teeth 79 are integrally formed with the members for cooperating with the teeth 77 on the underside of the dial 10.
  • the members include ON and OFF indicia levers 81 and 83 which are spaced from the ON and OFF sector levers 82 and 84, respectively.
  • the sector gear members 82 and 84 engage the segmented gear for one and one-half hours.
  • the variable switching can be varied plus or'minus a half hour and have a quarter-hour extra drive between the sector gears.
  • the sector gear segments 82 and 84 have stops 85 and 87 on one side so that if a minimum regular ON time of 1% hours is desired and set by placing the sector gears as close to each other as possible, the OFF sector gear 84 will not engage the gear 80 until the ON sector gear 82 is leaving the gear 80. Without these stops, the OFF sector gear 84 could enter the gear 80 before the ON gear sector-82 was leaving. Thus, the OFF sector gear 84 would begin driving while the ON sector gear will still driving and the automatic and variable cams 34 and 44 would not be rotated a full 60 during the OFF sector drive 84 needed tocomplete its cycle.
  • my unique timer may be formed with the use of relatively 'few parts.
  • the principal component for achieving both automatic and variable operation of the time switch is a cam 34, 44 which may be integrally formed to include all of the ON and OFF automatic and variable cam surfaces. Accordingly, a unique AUTOMATIC," VARI- ABLE, ON and OFF time switch has been achieved.
  • a time switch comprising:
  • a. electrical switch means having closed ON positions and open OFF positions
  • switch actuator means positioned adjacent to said switch means for actuating said switch means to an ON or an OFF position
  • a time of day member continuously rotated as a function of time positioned adjacent to said switch actuator, said time of day member having an OFF member selectively positionable on said time of day member for moving said switch actuator to cause said switch actuator to operate said switch means to an open OFF position, and an ON member selectively positionable on said time of day member for operating said switch actuator to move said switch means to a closed ON position;
  • said switch actuator means including a first cam means arranged for engagement with said switch means for opening and closing said switch means at the same times during a number of consecutive complete rotations of said time of day member at the times set by said slectively positionable ON and OFF members, and said switch actuator including a second cam means positioned adjacent to said switch means for opening and closing said switch means at different times than the times set by said selectively positionable ON and OFF members for opening and closing said switch means at different times during consecutive complete rotations of said time of day member; and
  • selector means for manually selecting operation of said switch means by said first cam means or said second cam means of said switch actuator.
  • a time switch as defined in claim 5 wherein said selector means is movable to a first position for closing said one pair of contacts to hold the switch in a manual ON position, to a second position to permit said first cam means to open and close said one pair of contacts at pre-programmed sametimes on consecutive days, to a third position to manually hold both pairs of contacts open, and to a fourth position to permit said second cam means to open and close the second pair of 10 contacts at pre-programmed different times on consecutive days.
  • a time switch as defined in claim 5 wherein said switch actuator includes a plurality of gear segment means which are positioned adjacent to said ON and OFF members and wherein said ON and OFF members are provided with gear segment means which are complementary to the plurality of gear segment means which are provided on said switch actuator so that as said time of day member is continuously rotated as a function of time the gear segment means on said ON and OFF members will be consecutively brought into engagement with one of the plurality of gear segments on said switch actuator to thereby rotate said switch actuator one incremental movement.
  • a time switch comprising:
  • a. electrical switch means having closed ON positions and open OFF positions
  • switch actuator means positioned adjacent to said switch means for actuating said switch means to an v 11V ON or an OFF position
  • a time of day member continuously rotated as a function of time positioned adjacent to said switch actuator, said time of day member having an OFF 7 member selectively positionable on said time of day member for incrementally moving said switch actuator as a function of time and for causing said a; switch actuator to operate said switch means to an open OFF position, and an ON member selectively positionable on said time of day memberfor operatingsaid switch actuator to move said switch a a 12 cam means for operating said switch means atsaid slightly different times on consecutive days; and f. said ON and OFF members including drive means for incrementally moving said switchactuator and .its cam as a function of time two increments each day, for providing two switch actuations each day., 18.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
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US515143A 1974-10-16 1974-10-16 Variable time switch with variable control cam structure for different time periods and modes of operation Expired - Lifetime US3925629A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US515143A US3925629A (en) 1974-10-16 1974-10-16 Variable time switch with variable control cam structure for different time periods and modes of operation
GB49548/74A GB1488026A (en) 1974-10-16 1974-11-15 Time switches
DE19752504779 DE2504779A1 (de) 1974-10-16 1975-02-05 Elektrischer zeitschalter
JP50017337A JPS5148187A (enrdf_load_stackoverflow) 1974-10-16 1975-02-10

Applications Claiming Priority (1)

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US515143A US3925629A (en) 1974-10-16 1974-10-16 Variable time switch with variable control cam structure for different time periods and modes of operation

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US3925629A true US3925629A (en) 1975-12-09

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US515143A Expired - Lifetime US3925629A (en) 1974-10-16 1974-10-16 Variable time switch with variable control cam structure for different time periods and modes of operation

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US (1) US3925629A (enrdf_load_stackoverflow)
JP (1) JPS5148187A (enrdf_load_stackoverflow)
DE (1) DE2504779A1 (enrdf_load_stackoverflow)
GB (1) GB1488026A (enrdf_load_stackoverflow)

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DE2640748A1 (de) * 1976-09-10 1978-03-16 Graesslin Feinwerktech Zeitscheibe mit schaltreitern fuer zeitschaltuhren
US4104541A (en) * 1977-03-18 1978-08-01 Jewell William R Automatic electric power switch
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DE3404122A1 (de) * 1984-02-07 1985-08-08 Diehl GmbH & Co, 8500 Nürnberg Vorrichtung zum messen der relativen luftfeuchtigkeit
USD310063S (en) 1988-07-11 1990-08-21 Woods Far East, Inc. Plug-in remotely controlled switch
US5062134A (en) * 1990-09-17 1991-10-29 Laird James M Timer for controlling telephone usage
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USD380396S (en) * 1995-11-17 1997-07-01 Intermatic, Inc. Electrical timer
US5715214A (en) * 1996-07-03 1998-02-03 Intermatic Incorporated Electrical timer with setting window
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US6274827B1 (en) 1997-02-20 2001-08-14 Martin Loffler Manual timer switching device having a rotatable knob
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US20050051410A1 (en) * 2003-07-28 2005-03-10 Matsushita Electric Works, Ltd. Time switch
USD511979S1 (en) * 2004-07-06 2005-11-29 American Track & Hardware Co., Inc. Outdoor timer
USD514000S1 (en) * 2004-07-06 2006-01-31 American Tack & Hardware Co., Inc. Timer
USD513999S1 (en) * 2004-07-06 2006-01-31 American Tack & Hardware Co., Inc. Timer
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USD525540S1 (en) * 2005-10-26 2006-07-25 Albert Stekelenburg Timer
USD534087S1 (en) * 2006-01-13 2006-12-26 Albert Stekelenburg Adjustable timer housing
USD534086S1 (en) * 2006-01-13 2006-12-26 Albert Stekelenburg Adjustable timer housing
USD534439S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Adjustable timer housing
USD534441S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Timer
USD534442S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Adjustable timer housing
USD535201S1 (en) * 2006-01-13 2007-01-16 Albert Stekelenburg Adjustable timer housing
US20070286027A1 (en) * 2004-09-29 2007-12-13 Otio Sas Electro-Mechanical Programmer and Electrical Connector Comprising One Such Programmer
USD557620S1 (en) * 2006-12-01 2007-12-18 Albert Stekelenburg Adjustable timer housing
US20070289849A1 (en) * 2004-09-29 2007-12-20 Romain Guillot Electro-Mechanical Programmer and Programmable Electrical Connector Comprising One Such Programmer
USD562706S1 (en) * 2006-12-01 2008-02-26 Albert Stekelenburg Adjustable timer housing
US20080259736A1 (en) * 2007-04-20 2008-10-23 Richter Jr William L User interface for timer
USD579794S1 (en) * 2008-01-15 2008-11-04 Albert Stekelenburg Adjustable timer housing
USD581293S1 (en) * 2008-01-15 2008-11-25 Albert Stekelenburg Timer
USD582794S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Timer
USD582796S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Timer
USD582795S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Adjustable timer housing
US20090051503A1 (en) * 2006-10-23 2009-02-26 Jeffrey Bowman Wireless timer system
USD608666S1 (en) * 2009-01-07 2010-01-26 De Bie Austin Charles Valve timer
USD619911S1 (en) * 2010-01-16 2010-07-20 Albert Stekelenburg Adjustable timer housing
USD619910S1 (en) * 2010-01-16 2010-07-20 Albert Stekelenburg Adjustable timer housing
USD620815S1 (en) * 2010-01-16 2010-08-03 Albert Stekelenburg Timer
USD620816S1 (en) * 2010-02-23 2010-08-03 Albert Stekelenburg Adjustable timer housing
USD621285S1 (en) * 2010-02-23 2010-08-10 Albert Stekelenburg Timer
USD640147S1 (en) * 2011-01-12 2011-06-21 Albert Stekelenburg Timer
USD640148S1 (en) * 2011-01-13 2011-06-21 Albert Stekelenburg Adjustable timer housing
USD646590S1 (en) * 2011-01-13 2011-10-11 Albert Stekelenburg Timer
USD646591S1 (en) * 2011-01-13 2011-10-11 Albert Stekelenburg Adjustable timer housing
USD667736S1 (en) * 2011-06-17 2012-09-25 American Tack And Hardware Co., Inc. Timer
USD679203S1 (en) * 2012-04-23 2013-04-02 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
USD679202S1 (en) * 2012-04-23 2013-04-02 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
ITMI20112339A1 (it) * 2011-12-21 2013-06-22 Fly S R L Interruttore orario a cavalieri con incrementato frazionamento della programmazione oraria
USD685657S1 (en) * 2012-04-23 2013-07-09 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
USD699596S1 (en) * 2012-04-23 2014-02-18 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
US9329576B1 (en) * 2012-10-10 2016-05-03 Reliance Controls Corporation Weatherproof timer enclosure
EP3038122A1 (en) * 2014-12-26 2016-06-29 Panasonic Intellectual Property Management Co., Ltd. Time switch
US9483027B2 (en) 2013-06-11 2016-11-01 Jo-Anne Marino One-touch countdown timer
US11121533B2 (en) 2018-09-10 2021-09-14 Reliance Controls Corporation Electrical box with reversible cover and latch

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US4413164A (en) * 1982-04-22 1983-11-01 The Singer Company Timer with manual means for disabling a switch
CN85200733U (zh) * 1985-04-15 1986-05-14 付其杰 自动程序启闭器

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USD246159S (en) 1975-10-06 1977-10-25 Amf Incorporated Lighting and appliance timer
US4130748A (en) * 1976-03-17 1978-12-19 Theben-Werk Zeitautomatik Gmbh & Co. Kg. Plug-type switch
FR2344981A1 (fr) * 1976-03-17 1977-10-14 Schwenk Kg Theben Werk Interrupteur a minuterie pour prise de courant
DE2640748A1 (de) * 1976-09-10 1978-03-16 Graesslin Feinwerktech Zeitscheibe mit schaltreitern fuer zeitschaltuhren
US4104541A (en) * 1977-03-18 1978-08-01 Jewell William R Automatic electric power switch
US4219741A (en) * 1978-08-18 1980-08-26 Gunten Lee L Von Random timer apparatus
US4367416A (en) * 1979-02-08 1983-01-04 Gunten Lee L Von Random electric timer having a reversible motor
WO1980001737A1 (en) * 1979-02-08 1980-08-21 L Gunten Random electric timer having a reversible motor
USD265553S (en) 1980-04-04 1982-07-27 Amf Incorporated Timing device
US4297546A (en) * 1980-04-14 1981-10-27 Amf Incorporated Actuating means for switch operation in timing apparatus
US4311886A (en) * 1980-04-18 1982-01-19 Amf Incorporated Timing apparatus for lamps and appliances
USD268753S (en) 1980-09-15 1983-04-26 Pittway Corporation Remote controlled slave
US4388002A (en) * 1980-12-03 1983-06-14 Spartus Corporation Connector for arrangement for a-c. clock mechanism
USD276795S (en) 1982-06-11 1984-12-18 Amf Inc. Timing device
US4509864A (en) * 1983-07-15 1985-04-09 Diehl Gmbh & Co. Program plate for a timer
DE3404122A1 (de) * 1984-02-07 1985-08-08 Diehl GmbH & Co, 8500 Nürnberg Vorrichtung zum messen der relativen luftfeuchtigkeit
US5397930A (en) * 1985-04-29 1995-03-14 Nilssen; Ole K. Programmable wall switch plug-in timer
USD310063S (en) 1988-07-11 1990-08-21 Woods Far East, Inc. Plug-in remotely controlled switch
US5062134A (en) * 1990-09-17 1991-10-29 Laird James M Timer for controlling telephone usage
USD380396S (en) * 1995-11-17 1997-07-01 Intermatic, Inc. Electrical timer
US5715214A (en) * 1996-07-03 1998-02-03 Intermatic Incorporated Electrical timer with setting window
US6274827B1 (en) 1997-02-20 2001-08-14 Martin Loffler Manual timer switching device having a rotatable knob
US6069847A (en) * 1998-01-27 2000-05-30 King-I Electromechanical Industry Co., Ltd. Timer
USD450604S1 (en) 2000-05-22 2001-11-20 All-Time Inc. Timer
US6917001B2 (en) * 2003-07-28 2005-07-12 Matsushita Electric Works, Ltd. Time switch
US20050051410A1 (en) * 2003-07-28 2005-03-10 Matsushita Electric Works, Ltd. Time switch
US6914204B2 (en) * 2003-08-26 2005-07-05 Matsushita Electric Works, Ltd. Time switch
US20050045456A1 (en) * 2003-08-26 2005-03-03 Matsushita Electric Works, Ltd. Time switch
USD511979S1 (en) * 2004-07-06 2005-11-29 American Track & Hardware Co., Inc. Outdoor timer
USD514000S1 (en) * 2004-07-06 2006-01-31 American Tack & Hardware Co., Inc. Timer
USD513999S1 (en) * 2004-07-06 2006-01-31 American Tack & Hardware Co., Inc. Timer
US20070289849A1 (en) * 2004-09-29 2007-12-20 Romain Guillot Electro-Mechanical Programmer and Programmable Electrical Connector Comprising One Such Programmer
US20070286027A1 (en) * 2004-09-29 2007-12-13 Otio Sas Electro-Mechanical Programmer and Electrical Connector Comprising One Such Programmer
USD525152S1 (en) * 2005-05-04 2006-07-18 Smith Billy J Time-controlled electrical power outlet
USD525540S1 (en) * 2005-10-26 2006-07-25 Albert Stekelenburg Timer
USD534441S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Timer
USD534442S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Adjustable timer housing
USD535201S1 (en) * 2006-01-13 2007-01-16 Albert Stekelenburg Adjustable timer housing
USD534086S1 (en) * 2006-01-13 2006-12-26 Albert Stekelenburg Adjustable timer housing
USD534087S1 (en) * 2006-01-13 2006-12-26 Albert Stekelenburg Adjustable timer housing
USD534439S1 (en) * 2006-01-13 2007-01-02 Albert Stekelenburg Adjustable timer housing
US20090051503A1 (en) * 2006-10-23 2009-02-26 Jeffrey Bowman Wireless timer system
USD557620S1 (en) * 2006-12-01 2007-12-18 Albert Stekelenburg Adjustable timer housing
USD562706S1 (en) * 2006-12-01 2008-02-26 Albert Stekelenburg Adjustable timer housing
US20080259736A1 (en) * 2007-04-20 2008-10-23 Richter Jr William L User interface for timer
USD579794S1 (en) * 2008-01-15 2008-11-04 Albert Stekelenburg Adjustable timer housing
USD581293S1 (en) * 2008-01-15 2008-11-25 Albert Stekelenburg Timer
USD582794S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Timer
USD582796S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Timer
USD582795S1 (en) * 2008-06-04 2008-12-16 Albert Stekelenburg Adjustable timer housing
USD608666S1 (en) * 2009-01-07 2010-01-26 De Bie Austin Charles Valve timer
USD619911S1 (en) * 2010-01-16 2010-07-20 Albert Stekelenburg Adjustable timer housing
USD619910S1 (en) * 2010-01-16 2010-07-20 Albert Stekelenburg Adjustable timer housing
USD620815S1 (en) * 2010-01-16 2010-08-03 Albert Stekelenburg Timer
USD620816S1 (en) * 2010-02-23 2010-08-03 Albert Stekelenburg Adjustable timer housing
USD621285S1 (en) * 2010-02-23 2010-08-10 Albert Stekelenburg Timer
USD640147S1 (en) * 2011-01-12 2011-06-21 Albert Stekelenburg Timer
USD640148S1 (en) * 2011-01-13 2011-06-21 Albert Stekelenburg Adjustable timer housing
USD646590S1 (en) * 2011-01-13 2011-10-11 Albert Stekelenburg Timer
USD646591S1 (en) * 2011-01-13 2011-10-11 Albert Stekelenburg Adjustable timer housing
USD667736S1 (en) * 2011-06-17 2012-09-25 American Tack And Hardware Co., Inc. Timer
ITMI20112339A1 (it) * 2011-12-21 2013-06-22 Fly S R L Interruttore orario a cavalieri con incrementato frazionamento della programmazione oraria
EP2607973A1 (en) * 2011-12-21 2013-06-26 Fly S.R.L. Timer switch with riders having a greater subdivision of the timer program.
USD679202S1 (en) * 2012-04-23 2013-04-02 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
USD679203S1 (en) * 2012-04-23 2013-04-02 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
USD685657S1 (en) * 2012-04-23 2013-07-09 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
USD699596S1 (en) * 2012-04-23 2014-02-18 Ningbo Bainian Electric Appliance Co., Ltd. Electronic timer
US9329576B1 (en) * 2012-10-10 2016-05-03 Reliance Controls Corporation Weatherproof timer enclosure
US9658603B2 (en) 2012-10-10 2017-05-23 Reliance Controls Corporation Reversible door mounting arrangement for a timer assembly
US9483027B2 (en) 2013-06-11 2016-11-01 Jo-Anne Marino One-touch countdown timer
EP3038122A1 (en) * 2014-12-26 2016-06-29 Panasonic Intellectual Property Management Co., Ltd. Time switch
CN105742118A (zh) * 2014-12-26 2016-07-06 松下知识产权经营株式会社 定时开关
US11121533B2 (en) 2018-09-10 2021-09-14 Reliance Controls Corporation Electrical box with reversible cover and latch

Also Published As

Publication number Publication date
GB1488026A (en) 1977-10-05
JPS5148187A (enrdf_load_stackoverflow) 1976-04-24
DE2504779A1 (de) 1976-04-22

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