US3699278A - Electrical timer with improved resilient contact mounting at ganged housing section complementary interfaces - Google Patents

Electrical timer with improved resilient contact mounting at ganged housing section complementary interfaces Download PDF

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Publication number
US3699278A
US3699278A US75855A US3699278DA US3699278A US 3699278 A US3699278 A US 3699278A US 75855 A US75855 A US 75855A US 3699278D A US3699278D A US 3699278DA US 3699278 A US3699278 A US 3699278A
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United States
Prior art keywords
projections
carried
timing device
cam
notches
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Expired - Lifetime
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US75855A
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English (en)
Inventor
Lewis E Jones
Daniel W Bernhardt
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Duracell Inc USA
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PR Mallory and Co Inc
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Publication date
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    • 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
    • H01H43/10—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 with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/12—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 with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a single cycle of operation
    • H01H43/125—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 with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a single cycle of operation using a cam

Definitions

  • the present invention is concerned with a timing device and has as one of its objects the provision of a timing device wherein different switching circuits are readily obtainable and which'is also neat, compact and easily produced.
  • Still another object of the invention is the provision of a timing device having stages of cam program means and electrical switching means.
  • Yet another object of the invention is the provision of a timing device having stages of cam program means and electrical switching means carried by individual housings which can be readily joined together or disengaged from each other.
  • Another object of the invention is the provision of a timing device having stages of cam program means and electrical switching means disposed within individual housings and wherein the housings have projections and notches adapted to mate corresponding projections and notches of an adjacent housing.
  • Yet still another object of the invention is to provide a timing device having stages of cam program means and electrical switching means wherein the individual cam program means are carried by a common shaft.
  • Another object of the invention is to provide a timing device having stages of cam program means and electrical switching means wherein the individual cam program means are coupled together and wherein one of the cam program means is coupled to a constant speed drive means through a clutch means.
  • Still another object of the invention is to provide a timing device having stages of cam program means and electrical switching means wherein there is a unidirectional means insuring that the program means will be rotated in a predetermined direction.
  • Yet still another object of the invention is the provision of a timing device having stages of cam program means and electrical switching means carried in individual housings, the housings being axially aligned in juxtaposition through mating projections and notches and wherein the electrical switching means includes at least two movable contact blades having electrical contacts adapted to engage one another, cam follower means carried by one of the contact blades, and blade seating means disposed at the free end of the movable contact blade, the contact blades and the seating means being carried by the mated projections and notches.
  • FIG. 1 is an exploded view of the timing device
  • FIG. 2 is a partial cross section of the timing device
  • FIG. 3 is a view taken along the line 3-3 of FIG. 2;
  • FIG. 4 is an end view of the timing device with an end cover being removed.
  • the objects of the invention are accomplished-by providing a timing device which has stages of cam program means and electrical switching means responsive to the cam program means, a housing substantially surrounding each of the stages, each of the housings being disposed in axially aligned juxtaposition through the mating of projections and notches included with each housing, with the electrical switching means being carried by the housings, shaft means extending through the axially aligned housings carrying the individual cam program means, cover means disposed at the opposite ends of the axiallyv aligned juxtaposition housings, constant speed drive means carried by one of the cover means, and means coupling the cam programming means to the constant speed drive means.
  • timing device 10 incorporating the novel features of the present invention.
  • the timing device is composed oftwo sub-assemblies, a constant speed drive assembly 11 and switch timing mechanism 12.
  • Constant speed drive assembly 11 includes a suitable motor such as a synchronous motor 11' to which is coupled an appropriate gear train carried in housing 11".
  • switch timing mechanism 12 includes stages 1 and 2, each stage including a cam program means 14 and 15 and electrical switching means 16 responsive to the rotation of the cam program means.
  • Each of the stages are enclosed in a housing 18 and 19 generally of a ring configuration, each having a cover means 18' and 19' closing one end of the rings.
  • cover means 19 is a separate piece while cover means 18', while not necessary, is unitarily constructed with ring member 18. It should be understood, that more than two stages, and thus more than two separate housings, could be used if more programs are desired. Thus if four programs are desired, there could be two more housings generally in the shape of rings similar to that of rings 18 and 19, the four rings then being closed off.
  • Cam program means 14 and 15 each include a cam means 14' and 15' both carried by a common shaft means 20.
  • the cams 14 and 15' are rotationally coupled together through pin 22 which protrudes from cam means 14' and extends into an aperture 24 provided in cam means 15'.
  • Each of the cam means 14 and 15 have coded indicia on their outer periphery to actuate the electrical switching means 16 in accordance with a program cycle.
  • Cam means 14 is coupled to constant speed drive means 11 through motor output pinion 26, gear 28 and unidirectional clutch means 30.
  • Unidirectional clutch means 30 includes a clutch face 32 carried by gear 28 and clutch face 34 carried by cam means 14'.
  • Clutch face 32 includes a multiplicity of oriented fibers 32 adapted to engage serrated teeth 34 of clutch face 34.
  • cam means 14 can be manually rotated in one direction by allowing teeth 34' to over-ride the oriented fibers 32 and can be driven by constant speed drive means 11 by having the oriented fibers engage the teeth 34 when being driven in the same direction.
  • a wrong-way manual rotation is further prevented through a second unidirectional clutch means 36.
  • unidirectional clutch means 36 includes a cam means 38 having an arcuate step 40 adapted to engage a stop means 42 carried by shaft means for manual rotation.
  • stop means 42 disengages step 40.
  • Cam means 38 is integrally or otherwise coupled to cam means 14.
  • the face of step 40 would be in axial alignment with an indicator means associated with a knob carried by the shaft means (not shown) used for manual rotation, such that orientation of the program means is readily achieved;
  • Seating means 62 and 64 are provided through the cooperation of the appropriate notches and projections.
  • the fixed and movable contact blades are cantilevered by the cooperating notches and projections.
  • Electrical terminals 61 are integral with each blade.
  • Cover 19 also includes a mounting means 66 through which the whole timing unit may be mounted to a suitable base member.
  • Mounting means 66 includes a frame member 68 having threaded apertures 70 into which mounting bolts can be threaded.
  • a timing device comprising:
  • second cover means disposed at the opposite end of said axially aligned juxtaposition rings, said cover means including notches and projections mating with notches and projections with the ring it closes,
  • a timing device further including at least one fixed contact means carried by said mating notches and projections and cooperating with at least one of said movable contacts.
  • a timing device further including blade seating disposed at said end of said blades carrying said electrical contacts and cantilevered by said mated notches and projections.
  • a timing device according to claim 1 wherein said clutch means includes a gear carried by said shaft means andcoupled to said drive means, said gear having a serrated face adapted to engage a face of said cam means having fibers oriented in a predetermined direction.
  • a timing device according to claim 1 further including unidirectional means cooperatively connecting one of said cam means of said stages with said shaft means.
  • a timing device includes an arcuate step carried by one of said cam means and a stop means carried by said shaft means engaging said arcuate step.
  • a timing device according to claim 6 wherein said arcuate step is axially aligned with an indicator means of a knob carried by said shaft means.
  • said second cover means includes mounting means adapted to receive mounting pins.

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  • Food-Manufacturing Devices (AREA)
  • External Artificial Organs (AREA)
  • Harvester Elements (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
US75855A 1970-09-28 1970-09-28 Electrical timer with improved resilient contact mounting at ganged housing section complementary interfaces Expired - Lifetime US3699278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7585570A 1970-09-28 1970-09-28

Publications (1)

Publication Number Publication Date
US3699278A true US3699278A (en) 1972-10-17

Family

ID=22128409

Family Applications (1)

Application Number Title Priority Date Filing Date
US75855A Expired - Lifetime US3699278A (en) 1970-09-28 1970-09-28 Electrical timer with improved resilient contact mounting at ganged housing section complementary interfaces

Country Status (6)

Country Link
US (1) US3699278A (enrdf_load_stackoverflow)
CA (1) CA960265A (enrdf_load_stackoverflow)
DE (1) DE2149102A1 (enrdf_load_stackoverflow)
FR (1) FR2108033B1 (enrdf_load_stackoverflow)
GB (1) GB1319430A (enrdf_load_stackoverflow)
IT (1) IT939476B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824357A (en) * 1973-04-16 1974-07-16 Malory P & Co Inc Electrical timer with improved gear-cam structure
US3825781A (en) * 1973-01-15 1974-07-23 Gen Electric Magnetically driven timer
US3830993A (en) * 1973-04-04 1974-08-20 Amf Inc Multi-circuit cycle timer and modular construction
US4381431A (en) * 1981-04-24 1983-04-26 Gulf & Western Manufacturing Company Hand set timer
US4797515A (en) * 1987-09-25 1989-01-10 Emhart Industries, Inc. Switch timing mechanism with serrated camstack
US5747760A (en) * 1996-07-10 1998-05-05 Paragon Electric Company, Inc. Timer with improved geneva drive mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790726A (en) * 1972-06-12 1974-02-05 Mallory & Co Inc P R Cam operated electrical timer assembly with improved contact and associated peripheral rib cam
IT1220864B (it) * 1988-03-30 1990-06-21 Eaton Controls Spa Coppia di cedenti per dispositivo programmatore temporizzato modulare

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136985A (en) * 1962-08-17 1964-06-09 Gen Time Corp Electric alarm device for sensing signal over power distribution system
US3308249A (en) * 1965-04-02 1967-03-07 Plessey Co Ltd Multi-circuit switch with improved castellated sections
US3319019A (en) * 1964-11-06 1967-05-09 Crouzet Sa Timed control device with variable programmed sequences
US3373253A (en) * 1965-02-20 1968-03-12 Crouzet Sa Program switch
US3553720A (en) * 1969-12-22 1971-01-05 Mallory & Co Inc P R Variable circuit timer with improved contact securing means
US3581028A (en) * 1969-11-20 1971-05-25 Dynamics Corp America Liquidizer timer jogger with improved drive means including lost motion connection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583242A (enrdf_load_stackoverflow) * 1968-06-21 1969-10-24

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136985A (en) * 1962-08-17 1964-06-09 Gen Time Corp Electric alarm device for sensing signal over power distribution system
US3319019A (en) * 1964-11-06 1967-05-09 Crouzet Sa Timed control device with variable programmed sequences
US3373253A (en) * 1965-02-20 1968-03-12 Crouzet Sa Program switch
US3308249A (en) * 1965-04-02 1967-03-07 Plessey Co Ltd Multi-circuit switch with improved castellated sections
US3581028A (en) * 1969-11-20 1971-05-25 Dynamics Corp America Liquidizer timer jogger with improved drive means including lost motion connection
US3553720A (en) * 1969-12-22 1971-01-05 Mallory & Co Inc P R Variable circuit timer with improved contact securing means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825781A (en) * 1973-01-15 1974-07-23 Gen Electric Magnetically driven timer
US3830993A (en) * 1973-04-04 1974-08-20 Amf Inc Multi-circuit cycle timer and modular construction
DE2414024A1 (de) * 1973-04-04 1974-10-24 Amf Inc Zeitwerk
US3824357A (en) * 1973-04-16 1974-07-16 Malory P & Co Inc Electrical timer with improved gear-cam structure
US4381431A (en) * 1981-04-24 1983-04-26 Gulf & Western Manufacturing Company Hand set timer
US4797515A (en) * 1987-09-25 1989-01-10 Emhart Industries, Inc. Switch timing mechanism with serrated camstack
US5747760A (en) * 1996-07-10 1998-05-05 Paragon Electric Company, Inc. Timer with improved geneva drive mechanism

Also Published As

Publication number Publication date
FR2108033B1 (enrdf_load_stackoverflow) 1976-07-23
FR2108033A1 (enrdf_load_stackoverflow) 1972-05-12
IT939476B (it) 1973-02-10
DE2149102A1 (de) 1972-03-30
AU3353371A (en) 1973-03-22
CA960265A (en) 1974-12-31
GB1319430A (en) 1973-06-06

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