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US4041424A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic reset timer

Assignee: Deltrol Corp
•
Filing: 1976-01-28
•
Granted: 1977-08-09
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Expires: 1996-01-28
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Abstract

Abstract An automatic reset timer includes two separate switches having operators held in timed-out position by individual latches. A clutch is released by one operator when the timer is timed out. A solenoid also controls the latches for the two switches and also controls the clutch directly. A clutch mode selector is accessible outside the case and may be set for on delay, off delay, or neutral. In neutral the clutch is not controlled by the solenoid and is released only when the timer is timed out. Other mode selectors outside the enclosure control solenoid operation of the switches. They may be caused to transfer from timed out to timing position by either solenoid energization of deenergization. A third position provides for instantaneous operation of one switch by the solenoid. Selection of clutch and switch modes of operation makes a single unit field adjustable in many different combinations, simplifying application to a given problem and reducing models required to be stocked.

Inventors

  • 👤 John L. Harris

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 00:13
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/06

Claims Analysis

Total Claims: 36
Claim 1
Independent Claim 152 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to cause movement of the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, return means controlling the return of the switch to timing position, a first controller for controlling said return means, a second controller for controlling the clutch, and means for actuating said controllers, said last named means including a common reciprocating power member and separate mechanical linkages between the power member and said controllers, and adjustable means in one of said linkages for revising the action of the reciprocating power member on its respective controller.
Claim 2
Dependent Claim 152 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to cause movement of the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, return means controlling the return of the switch to timing position, a first controller for controlling said return means, a second controller for controlling the clutch, and means for actuating said controllers, said last named means including a common reciprocating power member and separate mechanical linkages between the power member and said controllers, and adjustable means in one of said linkages for revising the action of the reciprocating power member on its respective controller.
Claim 3
Dependent Claim 36 words
The combination recited in claim 1 in which adjustable means are provided in both of the linkages whereby the action of the power member on both the return means controller and clutch controller may be revised.
Claim 4
Dependent Claim 51 words
The combination recited in claim 1 in which the adjustable means includes an adjuster and a lever having a driven portion driven by the power member and a driving portion driving its controller, said lever having a pivot about which it rotates, and means whereby the adjusted bodily shifts said lever.
Claim 5
Dependent Claim 41 words
The combination recited in claim 3 in which the pivot for the lever consists of a pin, and the adjuster is a rotatable member, said pin being eccentrically mounted on said adjuster, whereby rotation of the adjuster bodily shifts the pivot.
Claim 6
Dependent Claim 158 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to move the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, a clutch operating means, a reciprocating power member, linkage means between the power member and clutch operating means, said linkage means including adjustable means for varying the action of the power member on the clutch operating means, said adjustable means including an adjuster and a lever having a driven portion driven by the power member and a driving portion driving said clutch operating means, said lever having a pivot about which it rotates, and means whereby the adjuster bodily shifts the lever.
Claim 7
Dependent Claim 158 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to move the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, a clutch operating means, a reciprocating power member, linkage means between the power member and clutch operating means, said linkage means including adjustable means for varying the action of the power member on the clutch operating means, said adjustable means including an adjuster and a lever having a driven portion driven by the power member and a driving portion driving said clutch operating means, said lever having a pivot about which it rotates, and means whereby the adjuster bodily shifts the lever.
Claim 8
Dependent Claim 41 words
The combination recited in claim 5 in which the pivot for the lever consists of a pin, and the adjuster is a rotatable member, said pin being eccentrically mounted on said adjuster, whereby rotation of the adjuster bodily shifts the pivot.
Claim 9
Dependent Claim 149 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to move the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, means independent of the clutch for retaining the switch in timed-out position, said independent means including control means for causing return of the switch to timing position, means for actuating said control means including a reciprocating power member, said last named means including a mechanical linkage between the reciprocating power member and control means, and adjustable means in said linkage for revising the action of the reciprocating power member on said control means.
Claim 10
Dependent Claim 149 words
In an automatic reset timer having a switch, timing means, a motor, drive means driven by the motor including a clutch for driving the timing means in one direction when the clutch is engaged, reset means for returning the timing means to a starting position if the clutch is disengaged, the timing means being arranged to move the switch from a timing position to a timed-out position when driven by the motor to a predetermined position, means independent of the clutch for retaining the switch in timed-out position, said independent means including control means for causing return of the switch to timing position, means for actuating said control means including a reciprocating power member, said last named means including a mechanical linkage between the reciprocating power member and control means, and adjustable means in said linkage for revising the action of the reciprocating power member on said control means.
Claim 11
Dependent Claim 52 words
The combination recited in claim 7 in which the adjustable means includes an adjuster and a lever having a driven portion driven by the power member and a driving portion driving the control means, said lever having a pivot about which it rotates, and means whereby the adjuster bodily shifts said lever.
Claim 12
Dependent Claim 41 words
The combination recited in claim 8 in which the pivot for the lever consists of a pin, and the adjuster is a rotatable member, said pin being eccentrically mounted on said adjuster, whereby rotation of the adjuster bodily shifts the pivot.
Claim 13
Dependent Claim 153 words
In an automatic reset timer, the combination of, electric components including a timer motor, an electro-magnet and switching means, a timing mechanism driven by said motor and arranged to actuate said switching means, clutch means interposed between the motor and timing mechanism, linkage means connecting said electro-magnet with at least one of said means whereby the electro-magnet operated said last mentioned means, a housing having a rear portion formed with a central selector area and with a terminal area generally around said selector area, a series of terminals mounted in the terminal area and connected with at least some of the electric components, a selector mounted in the selector area and having an adjusting element accessible from the exterior of said rear portion, and means whereby movement of said selector affects the linkage means in a manner to vary the action of the electro-magnet on the means connected thereto by the linkage means.
Claim 14
Dependent Claim 153 words
In an automatic reset timer, the combination of, electric components including a timer motor, an electro-magnet and switching means, a timing mechanism driven by said motor and arranged to actuate said switching means, clutch means interposed between the motor and timing mechanism, linkage means connecting said electro-magnet with at least one of said means whereby the electro-magnet operated said last mentioned means, a housing having a rear portion formed with a central selector area and with a terminal area generally around said selector area, a series of terminals mounted in the terminal area and connected with at least some of the electric components, a selector mounted in the selector area and having an adjusting element accessible from the exterior of said rear portion, and means whereby movement of said selector affects the linkage means in a manner to vary the action of the electro-magnet on the means connected thereto by the linkage means.
Claim 15
Dependent Claim 18 words
The combination recited in claim 10 in which the linkage means connects the clutch means with the electro-magnet.
Claim 16
Dependent Claim 18 words
The combination recited in claim 10 in which the linkage means connects the switching means with the electro-magnet.
Claim 17
Dependent Claim 22 words
The combination recited in claim 10 in which the linkage means connects the electro-magnet to both the switching means and clutch means.
Claim 18
Dependent Claim 29 words
The combination recited in claim 10 in which the selector is rotatably mounted in the rear portion of the housing and includes an eccentric portion carrying the connector means.
Claim 19
Dependent Claim 63 words
The combination recited in claim 13 in which two separate and independent selectors are mounted in the selector area, one being associated with the linkage means in a manner to modify the action of the electro-magnet on the switching means and the other being associated with the linkage means in a manner to modify the action of the electro-magnet on the clutch means.
Claim 20
Dependent Claim 269 words
In an automatic reset timer, the combination of, a housing having a rear portion and a front portion, electric components mounted in the housing comprising a timer motor, an electromagnet, and switching means, a timing mechanism driven by the motor and arranged to actuate the switching means, clutch means interposed between the motor and timing mechanism, linkage means connecting said electro-magnet with at least one of said means whereby the electro-magnet operates said last mentioned means, said rear portion of the housing having a central selector area and a terminal area generally around the selector area, a series of terminals mounted in the terminal area and connected to at least some of the electric components including the switching means, a selector mounted in the selector area and having an adjusting element accessible from the exterior of the rear portion of said housing, means whereby movement of said selector affects the linkage means in a manner to vary the action of the electro-magnet on the means connected thereto by the linkage means, said switching means being mounted on the inside of said rear portion of the housing and the timing mechanism being mounted forward of the switching means, the timer motor being mounted forward of the timing mechanism and the electro-magnet, drive means from the motor extending to the timing mechanism and arranged to drive the same, a dial and read-out pointer located at the front portion of the housing, and drive means extending from the timing mechanism past the timer motor to said read-out pointer arranged to cause the read-out pointer to indicate the position of the timing mechanism.
Claim 21
Dependent Claim 269 words
In an automatic reset timer, the combination of, a housing having a rear portion and a front portion, electric components mounted in the housing comprising a timer motor, an electromagnet, and switching means, a timing mechanism driven by the motor and arranged to actuate the switching means, clutch means interposed between the motor and timing mechanism, linkage means connecting said electro-magnet with at least one of said means whereby the electro-magnet operates said last mentioned means, said rear portion of the housing having a central selector area and a terminal area generally around the selector area, a series of terminals mounted in the terminal area and connected to at least some of the electric components including the switching means, a selector mounted in the selector area and having an adjusting element accessible from the exterior of the rear portion of said housing, means whereby movement of said selector affects the linkage means in a manner to vary the action of the electro-magnet on the means connected thereto by the linkage means, said switching means being mounted on the inside of said rear portion of the housing and the timing mechanism being mounted forward of the switching means, the timer motor being mounted forward of the timing mechanism and the electro-magnet, drive means from the motor extending to the timing mechanism and arranged to drive the same, a dial and read-out pointer located at the front portion of the housing, and drive means extending from the timing mechanism past the timer motor to said read-out pointer arranged to cause the read-out pointer to indicate the position of the timing mechanism.
Claim 22
Dependent Claim 149 words
In an automatic reset timer, the combination of, a housing having a rear portion and a front portion, switching means mounted on the inside of said rear portion, terminal means on the outside of said rear portion, said switching means being connected to said terminal means, timing mechanism mounted in the enclosure forward of said switching means and arranged to actuate the same, an electro-magnet mounted in said housing and arranged to control the timing means, a timer motor mounted in the housing forward of the electro-magnet and timing means, drive means from the motor extending to the timing mechanism and arranged to drive the same, a dial and read-out pointer located at the front portion of said housing, and drive means extending from the timing mechanism past the timer motor to said read-out pointer arranged to cause the read-out pointer to indicate the position of the timing mechanism.
Claim 23
Dependent Claim 149 words
In an automatic reset timer, the combination of, a housing having a rear portion and a front portion, switching means mounted on the inside of said rear portion, terminal means on the outside of said rear portion, said switching means being connected to said terminal means, timing mechanism mounted in the enclosure forward of said switching means and arranged to actuate the same, an electro-magnet mounted in said housing and arranged to control the timing means, a timer motor mounted in the housing forward of the electro-magnet and timing means, drive means from the motor extending to the timing mechanism and arranged to drive the same, a dial and read-out pointer located at the front portion of said housing, and drive means extending from the timing mechanism past the timer motor to said read-out pointer arranged to cause the read-out pointer to indicate the position of the timing mechanism.
Claim 24
Dependent Claim 140 words
In a multiple switch timing device, the combination of, a first switch, a second switch, a first operator for the first switch, a second operator for the second switch, a main bearing axis, said first and second operators being located substantially equidistant from the main bearing axis and at angularly spaced points, cam means rotatably mounted on said main bearing axis and having camming surfaces engaging said operators, timing means also mounted on said main bearing axis, snap action means actuated by the timing means for causing movement of said cam means with snap action at a predetermined time, said cam means being arranged upon such movement to move the first and second operators in one direction, and independent means controlling movement of said operators in the opposite direction, said independent means including means rotatable on said main bearing axis.
Claim 25
Dependent Claim 140 words
In a multiple switch timing device, the combination of, a first switch, a second switch, a first operator for the first switch, a second operator for the second switch, a main bearing axis, said first and second operators being located substantially equidistant from the main bearing axis and at angularly spaced points, cam means rotatably mounted on said main bearing axis and having camming surfaces engaging said operators, timing means also mounted on said main bearing axis, snap action means actuated by the timing means for causing movement of said cam means with snap action at a predetermined time, said cam means being arranged upon such movement to move the first and second operators in one direction, and independent means controlling movement of said operators in the opposite direction, said independent means including means rotatable on said main bearing axis.
Claim 26
Dependent Claim 72 words
The combination recited in claim 18 in which the timing means includes a motor, a clutch, a spring return reset timing element driven by the motor through the clutch, and in which the snap action means includes a spring winder actuated by said timing element and a spring wound by the winder for applying power to the cam, said timing element and spring winder being rotatably mounted on said main bearing axis.
Claim 27
Dependent Claim 39 words
The combination recited in claim 18 in which the timing means includes a motor, a clutch and a spring return reset timing element driven by the motor through the clutch, said clutch also being controlled by said independent means.
Claim 28
Dependent Claim 101 words
In a multiple switch automatic reset timer, the combination of, a first switch, a second switch, a first controller for the first switch, a second controller for the second switch, said controllers being independent, a main bearing axis, timing means for actuating said switches in one direction at the end of a predetermined time, said timing means including a motor, a clutch and a spring return timing element, a controller for the clutch, the switch controllers and clutch controller being located at spaced points around the main bearing axis, and means carried by the main bearing axis for actuating said controllers.
Claim 29
Dependent Claim 101 words
In a multiple switch automatic reset timer, the combination of, a first switch, a second switch, a first controller for the first switch, a second controller for the second switch, said controllers being independent, a main bearing axis, timing means for actuating said switches in one direction at the end of a predetermined time, said timing means including a motor, a clutch and a spring return timing element, a controller for the clutch, the switch controllers and clutch controller being located at spaced points around the main bearing axis, and means carried by the main bearing axis for actuating said controllers.
Claim 30
Dependent Claim 34 words
The combination recited in claim 21 in which the means for actuating the controllers consists of a wheel having abutments, and control means for rotating said wheel step by step in a single direction.
Claim 31
Dependent Claim 104 words
In a timing device, the combination of, a housing having a rear portion and a front portion, timing mechanism and control mechanism actuated thereby mounted inside said housing adjacent the rear thereof, a timer motor in said housing forward of the timing mechanism and control mechanism, dial and pointer means including a dial and pointer located at the front portion of said housing, drive shaft means extending from the timing mechanism past the timer motor to said dial and pointer means, said drive shaft means being constructed and arranged to cause the pointer to indicate the position of the timing mechanism on said dial.
Claim 32
Dependent Claim 104 words
In a timing device, the combination of, a housing having a rear portion and a front portion, timing mechanism and control mechanism actuated thereby mounted inside said housing adjacent the rear thereof, a timer motor in said housing forward of the timing mechanism and control mechanism, dial and pointer means including a dial and pointer located at the front portion of said housing, drive shaft means extending from the timing mechanism past the timer motor to said dial and pointer means, said drive shaft means being constructed and arranged to cause the pointer to indicate the position of the timing mechanism on said dial.
Claim 33
Dependent Claim 36 words
The combination recited in claim 23 in which the front portion of the housing is removable and bodily carries the dial and pointer, removing of the front portion of the housing giving access to the motor.
Claim 34
Dependent Claim 21 words
The combination recited in claim 24 in which the motor is mounted independently of said removable front portion of the housing.
Claim 35
Dependent Claim 68 words
The combination recited in claim 24 in which the timing mechanism is of the automatic reset type having clutch means and a spring return timing element, a fixed internal stop engaged by the timing means when the clutch is disengaged, said fixed internal stop providing a reference for setting the drive means during assembly to facilitate matching of the pointer position with the position of said timing element.
Claim 36
Dependent Claim 33 words
The combination recited in claim 26 in which the removable front portion of the housing carries an adjusting pointer serving as a stop for limiting rotation of the first pointer and timing element.

References Cited (Backward Citations)

US3578923A Cited
US3725616A Cited
US3810050A Cited
US3774127A Cited
US3713053A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-08-08 1981-02-07 1981-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-08-08 1985-02-07 1985-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-08-08 1989-02-07 1989-08-09 $7700.00 Window Closed / Lapsed

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