US3727015A - Cam operated program timer assembly with replaceable leaf spring contact structure - Google Patents

Cam operated program timer assembly with replaceable leaf spring contact structure Download PDF

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Publication number
US3727015A
US3727015A US00133437A US3727015DA US3727015A US 3727015 A US3727015 A US 3727015A US 00133437 A US00133437 A US 00133437A US 3727015D A US3727015D A US 3727015DA US 3727015 A US3727015 A US 3727015A
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United States
Prior art keywords
timer according
electrical
plug
cam programming
housing
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.)
Expired - Lifetime
Application number
US00133437A
Inventor
E Voland
H Simmons
P Kurt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duracell Inc USA
Emerson Electric Co
Original Assignee
PR Mallory and Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PR Mallory and Co Inc filed Critical PR Mallory and Co Inc
Publication of US3727015A publication Critical patent/US3727015A/en
Assigned to EMHART INDUSTRIES, INC. reassignment EMHART INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DURACELL INC.
Application granted granted Critical
Publication of US3727015B1 publication Critical patent/US3727015B1/en
Anticipated expiration legal-status Critical
Assigned to EMERSON ELECTRIC CO. A CORP. OF MISSOURI reassignment EMERSON ELECTRIC CO. A CORP. OF MISSOURI ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EMHART INDUSTRIES, INC. A CORP. OF CONNECTICUT
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/02—Details
    • H01H43/024—Terminal arrangements

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Abstract

A timer having switch means responsive to a cam programming means, the cam programming means being driven through a timer motor through a clutch operated drive means. The cam programming means and the switch means are disposed within a housing. Electrical terminals are mounted in the housing and extend through the housing and are unitarily constructed with the switch means. The motor electrical leads are connected to the switch means and the terminal means inside the housing through a quick disconnect means. The clutch drive means comprises a gear means having ratchet means adapted to engage corresponding ratchet means on the cam programming means.

Claims (10)

1. In a timer having motor driven cam programming means: a. a cup shaped housing and a cover closing same, said cam programming means carried within said cup-shaped housing, b. slots provided across a cut-away portion of a wall of said cup-shaped housing, said cover including a projection adapted to mate said cut-away portion and close said slots. c. at least two one-piece combination plug-in electrical terminals and movable switch blades carried in said slots, the plug-in electrical terminal portion of said one-piece combination extending through at least a substantial portion of said wall in said slots, d. projections lanced from said one-piece combination adapted to be received in notches provided in said wall and opening to said slots, said notches having restraining walls transverse to the lengthwise direction of said one-piece combination preventing any substantial lengthwise slippage of said onepiece combination, e. said movable switch blades extending substantially lineally beyond the ends of said plug-in electrical terminal portions so as to be cantilevered through the cooperation of said plug-in electrical terminal portion and said wall, said movable switch blades responsive to said cam programming means, and f. cooperating electrical contacts carried at the free ends of said movable blades.
2. In a timer according to claim 1, wherein said electrical terminals and said switch means are unitarily constructed.
3. In a timer according to claim 2, wherein said terminals are crimped along their edges.
4. In a timer according to claim 1, wherein said plug-in electrical terminal portion extends through said housing wall and terminates about at the inner face of said housing wall.
5. In a timer according to claim 1, wherein said plug-in electrical terminals are crimped along their edges.
6. In a timer according to claim 1 further including electrical leads connecting said motor to two of said electrical terminals.
7. In a timer according to claim 6 wherein said electrical leads are electrically connected to said motor through quick disconnect means disposed within said housing.
8. In a timer according to claim 1 further including clutch means to alternately engage and disengage said cam programming means from said motor.
9. In a timer according to claim 8 wherein said clutch means includes spring biased gear means coupled to said motor and having ratchet teeth adapted to engage corresponding teeth carried by said cam programming means.
10. In a timer according to claim 1 further including manual operating means coupled to said cam programming means.
US00133437A 1971-04-12 1971-04-12 Cam operated program timer assembly with replaceable leaf spring contact structure Expired - Lifetime US3727015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13343771A 1971-04-12 1971-04-12

Publications (2)

Publication Number Publication Date
US3727015A true US3727015A (en) 1973-04-10
US3727015B1 US3727015B1 (en) 1987-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00133437A Expired - Lifetime US3727015A (en) 1971-04-12 1971-04-12 Cam operated program timer assembly with replaceable leaf spring contact structure

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779032A (en) * 1972-08-02 1973-12-18 Whirlpool Co Ice maker water fill control
US3814874A (en) * 1973-03-30 1974-06-04 Mallory & Co Inc P R Cam-actuated timer switch
US3824357A (en) * 1973-04-16 1974-07-16 Malory P & Co Inc Electrical timer with improved gear-cam structure
JPS513072U (en) * 1974-06-24 1976-01-10
US4012607A (en) * 1973-12-17 1977-03-15 Dieter Graesslin Feinwerktechnik Miniature timer
US4060702A (en) * 1976-01-09 1977-11-29 Wallace Leon Linn Timer switch assembly having escapement mechanism
US4250420A (en) * 1979-06-05 1981-02-10 Emhart Industries, Inc. Sandwich structure for a combination motor and gear train with a timing mechanism
US4297547A (en) * 1978-12-14 1981-10-27 Emhart Industries, Inc. Miniature timing mechanism
US4392357A (en) * 1981-04-27 1983-07-12 Emhart Industries, Inc. Method and means controlling defrost cycles of a cooling unit
US4406932A (en) * 1981-05-13 1983-09-27 Emhart Industries, Inc. Cam operated timer with improved electrical connections
US4734548A (en) * 1987-03-30 1988-03-29 Emhart Industries, Inc. Cam operated program timer assembly with housing and terminal blade mounting features
WO1989004050A1 (en) * 1987-10-29 1989-05-05 Paragon Electric Company, Inc. A split housing timer mechanism having separating cover with snap-lock fastener
US4849588A (en) * 1987-02-18 1989-07-18 Kabushiki Kaisha Sankyo Seiki Seisakusho Motor-driven time switch
US4896004A (en) * 1987-10-09 1990-01-23 White Consolidated Industries, Inc. Low-profile range control switch
US4956527A (en) * 1989-03-29 1990-09-11 Emhart Industries, Inc. Electromechanical timer with improved blade retention
US4972053A (en) * 1989-06-06 1990-11-20 Emerson Electric Co. Power transmission assembly
US5025117A (en) * 1989-03-29 1991-06-18 Emhart Industries Inc. Can operated timer with improved housing
US5043544A (en) * 1989-06-06 1991-08-27 Emerson Electric Co. Power transmission assembly
US5241144A (en) * 1992-06-24 1993-08-31 Emerson Electric Co. Self-adjusting multicircuit brake switch
US5321219A (en) * 1993-02-26 1994-06-14 Emerson Electric Co. Lever actuated pedal operated switch assembly
US5422448A (en) * 1992-11-17 1995-06-06 Smk Corp. Contact piece for use in a rotary encoder and method of constructing same
EP1128497A3 (en) * 2000-01-22 2003-02-26 E.G.O. Elektro-Gerätebau GmbH Process for manufacturing a switching device base
US9389592B1 (en) * 2012-10-10 2016-07-12 Reliance Controls Corporation Timer assembly with slim motor

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953667A (en) * 1958-08-04 1960-09-20 Cons Electronics Ind Cam-actuated switch assembly for a repeating interval timer or the like
US3125706A (en) * 1964-03-17 Certificate of correction
US3126759A (en) * 1959-07-15 1964-03-31 Timing mechanism for washing machines and like equipment
US3255334A (en) * 1962-08-20 1966-06-07 Siemens Ag Contact spring set with self-retaining contact elements
US3306996A (en) * 1965-03-22 1967-02-28 Mallory & Co Inc P R Wrap-around plug-in timer
US3370136A (en) * 1966-07-18 1968-02-20 Mallory & Co Inc P R Ignition breaker having a breaker arm with hinged deflection characteristics
US3391258A (en) * 1966-10-24 1968-07-02 American Mach & Foundry Switch construction having three spring blade contact arms and spacer means therebetween
US3449699A (en) * 1965-12-24 1969-06-10 Crouzet Sa Programmer for controlling switches of washing machines and the like
US3465110A (en) * 1965-02-15 1969-09-02 Controls Co Of America Multiple time base timer
US3476892A (en) * 1967-12-14 1969-11-04 Mallory & Co Inc P R Shaft locking device
US3485982A (en) * 1965-10-14 1969-12-23 Robertshaw Controls Co Ultrasonically welded switch construction and method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125706A (en) * 1964-03-17 Certificate of correction
US2953667A (en) * 1958-08-04 1960-09-20 Cons Electronics Ind Cam-actuated switch assembly for a repeating interval timer or the like
US3126759A (en) * 1959-07-15 1964-03-31 Timing mechanism for washing machines and like equipment
US3255334A (en) * 1962-08-20 1966-06-07 Siemens Ag Contact spring set with self-retaining contact elements
US3465110A (en) * 1965-02-15 1969-09-02 Controls Co Of America Multiple time base timer
US3306996A (en) * 1965-03-22 1967-02-28 Mallory & Co Inc P R Wrap-around plug-in timer
US3485982A (en) * 1965-10-14 1969-12-23 Robertshaw Controls Co Ultrasonically welded switch construction and method
US3449699A (en) * 1965-12-24 1969-06-10 Crouzet Sa Programmer for controlling switches of washing machines and the like
US3370136A (en) * 1966-07-18 1968-02-20 Mallory & Co Inc P R Ignition breaker having a breaker arm with hinged deflection characteristics
US3391258A (en) * 1966-10-24 1968-07-02 American Mach & Foundry Switch construction having three spring blade contact arms and spacer means therebetween
US3476892A (en) * 1967-12-14 1969-11-04 Mallory & Co Inc P R Shaft locking device

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779032A (en) * 1972-08-02 1973-12-18 Whirlpool Co Ice maker water fill control
US3814874A (en) * 1973-03-30 1974-06-04 Mallory & Co Inc P R Cam-actuated timer switch
US3824357A (en) * 1973-04-16 1974-07-16 Malory P & Co Inc Electrical timer with improved gear-cam structure
US4012607A (en) * 1973-12-17 1977-03-15 Dieter Graesslin Feinwerktechnik Miniature timer
JPS5542352Y2 (en) * 1974-06-24 1980-10-03
JPS513072U (en) * 1974-06-24 1976-01-10
US4060702A (en) * 1976-01-09 1977-11-29 Wallace Leon Linn Timer switch assembly having escapement mechanism
US4297547A (en) * 1978-12-14 1981-10-27 Emhart Industries, Inc. Miniature timing mechanism
US4250420A (en) * 1979-06-05 1981-02-10 Emhart Industries, Inc. Sandwich structure for a combination motor and gear train with a timing mechanism
US4392357A (en) * 1981-04-27 1983-07-12 Emhart Industries, Inc. Method and means controlling defrost cycles of a cooling unit
US4406932A (en) * 1981-05-13 1983-09-27 Emhart Industries, Inc. Cam operated timer with improved electrical connections
US4849588A (en) * 1987-02-18 1989-07-18 Kabushiki Kaisha Sankyo Seiki Seisakusho Motor-driven time switch
US4734548A (en) * 1987-03-30 1988-03-29 Emhart Industries, Inc. Cam operated program timer assembly with housing and terminal blade mounting features
US4896004A (en) * 1987-10-09 1990-01-23 White Consolidated Industries, Inc. Low-profile range control switch
WO1989004050A1 (en) * 1987-10-29 1989-05-05 Paragon Electric Company, Inc. A split housing timer mechanism having separating cover with snap-lock fastener
US4956527A (en) * 1989-03-29 1990-09-11 Emhart Industries, Inc. Electromechanical timer with improved blade retention
US5025117A (en) * 1989-03-29 1991-06-18 Emhart Industries Inc. Can operated timer with improved housing
US4972053A (en) * 1989-06-06 1990-11-20 Emerson Electric Co. Power transmission assembly
US5043544A (en) * 1989-06-06 1991-08-27 Emerson Electric Co. Power transmission assembly
US5241144A (en) * 1992-06-24 1993-08-31 Emerson Electric Co. Self-adjusting multicircuit brake switch
US5422448A (en) * 1992-11-17 1995-06-06 Smk Corp. Contact piece for use in a rotary encoder and method of constructing same
US5321219A (en) * 1993-02-26 1994-06-14 Emerson Electric Co. Lever actuated pedal operated switch assembly
EP1128497A3 (en) * 2000-01-22 2003-02-26 E.G.O. Elektro-Gerätebau GmbH Process for manufacturing a switching device base
US9389592B1 (en) * 2012-10-10 2016-07-12 Reliance Controls Corporation Timer assembly with slim motor

Also Published As

Publication number Publication date
US3727015B1 (en) 1987-08-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: EMHART INDUSTRIES, INC.,CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DURACELL INC.;REEL/FRAME:004336/0296

Effective date: 19841109

Owner name: EMHART INDUSTRIES, INC., 426 COLT HIGHWAY, FARMING

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DURACELL INC.;REEL/FRAME:004336/0296

Effective date: 19841109

RR Request for reexamination filed

Effective date: 19860929

B1 Reexamination certificate first reexamination
AS Assignment

Owner name: EMERSON ELECTRIC CO. A CORP. OF MISSOURI, MISSO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EMHART INDUSTRIES, INC. A CORP. OF CONNECTICUT;REEL/FRAME:005691/0720

Effective date: 19910125