Motor release energy storage means for retarded type timer mechanism

Claim 2

In a control system for a condition changer, the combination of, a power source for energizing the condition changer, a main switch interposed between the power source and condition changer and directly controlling the power thereto, switch operator means for said main switch movable between two positions, one position causing closure of the switch and the other causing opening of said switch, means for actuating said switch operator means, said actuating means including a timing means having a timer motor, spring means, closing means actuated by said spring means for actuating the operator means to close said switch, opening means capable of opening said switch instantly after closure thereof and without requiring operation of said timer motor, a condition responsive device, means connecting said condition responsive device to the closing means and opening means in a manner to actuate the closing means to close the switch on call for condition change and to open the switch when the call for condition change is satisfied, and means actuated by said motor for winding said spring means, said winding means being constructed and arranged to be independent of the position of the main switch.

Claim 3

The combination recited in claim 1 in which the spring means must be rewound by the timer motor after each switch closure in order to effect a subsequent closure, whereby a delay is insured between successive starts of the condition changer.

Claim 4

The combination recited in claim 1 in which the condition responsive means is arranged to start the timing means on call for condition change, and means actuated by the timing means following such starting for causing operation of the closing means.

Claim 5

The combination recited in claim 2 in which the condition responsive means is arranged to start the timing means on call for condition change, and meAns actuated by the timing means following such starting for causing operation of the closing means.

Claim 6

The combination recited in claim 3 including a timer motor switch for controlling the timer motor, means for opening said timer motor switch after closure of the main switch, means for reclosing the timer motor switch when the main switch is opened, and means for reopening the timer motor switch a predetermined time thereafter.

Claim 7

The combination recited in claim 4 including a timer motor switch for controlling the timer motor, means for opening said timer motor switch after closure of the main switch, means for reclosing the timer motor switch when the main switch is opened, and means for reopening the timer motor switch a predetermined time thereafter.

Claim 8

In a control system for a power operated device, the combination of, a power source for energizing said device, a load switch arranged to control the power to said device, an operator for said load switch, said operator being movable between two positions, one position causing closure of the switch and the other causing opening thereof, means biasing said switch toward its open position, a timer motor, spring loaded means wound by said timer motor, pawl means associated with the switch operator, means whereby said pawl means releasably connects said spring loaded means to said switch operator and holds the operator in switch closed position, master control means, means whereby said spring loaded means is released in response to operation of said master control means, means whereby said spring loaded means actuates the switch operator through said pawl means to close the main switch, and means for releasing said pawl means under the command of said master control means for allowing opening of the switch by the biasing means.

Claim 9

In a control system for a power operated device, the combination of, a power source for energizing said device, a load switch arranged to control the power to said device, an operator for said load switch, said operator being movable between two positions, one position causing closure of the switch and the other causing opening thereof, means biasing said switch toward its open position, a timer motor, spring loaded means wound by said timer motor, pawl means associated with the switch operator, means whereby said pawl means releasably connects said spring loaded means to said switch operator and holds the operator in switch closed position, master control means, means whereby said spring loaded means is released in response to operation of said master control means, means whereby said spring loaded means actuates the switch operator through said pawl means to close the main switch, and means for releasing said pawl means under the command of said master control means for allowing opening of the switch by the biasing means.

Claim 10

The combination set forth in claim 7 in which the pawl means consists of two separate elements, one element serving as a closing pawl and the other as a holding pawl, means for releasing the closing pawl when the switch closes, the holding pawl being released at the command of the master control means.

Claim 11

The combination set forth in claim 7 in which the spring loaded means is moved in one direction by the timer motor and is allowed to move in the opposite direction when released, thereby requiring operation of the timer motor between successive releases of the switch operator.

Claim 12

The combination recited in claim 8 in which the closing pawl is released by the spring loaded means at a predetermined position thereof.

Claim 13

In a control system for a power operated device, a main switch controlling the power operated device, said main switch having an operator movable between two positions, one position causing closure of the switch and the other position causing opening of said switch, timing means for actuating said switch operator, said timing means including a timer motor, a cam driven by said motor, said cam having a rise portion and a drop-off portion, a cam follower riding the cam, spring means wound by the cam follower when raised by the cam, closing means actuated by the spring means when the cam follower drops down the drop off portion of the cam for closing said switch, opening means capable of opening said switch instantly after closure thereof and without requiring operation of the timer motor, switching means for controlling the timer motor, master control means, means causing the timer motor to operate in response to one condition of the master control means, causing the cam follower to drop down the drop off portion of the cam and allow the closing means to be actuated by the spring means for closing the switch, means for opening the timer motor switching means to stop the timer motor after closure of said switch, means responding to another condition of the master control means for causing the opening means to open the switch, and means for reclosing the timer motor switching means when said switch is opened.

Claim 14

In a control system for a power operated device, a main switch controlling the power operated device, said main switch having an operator movable between two positions, one position causing closure of the switch and the other position causing opening of said switch, timing means for actuating said switch operator, said timing means including a timer motor, a cam driven by said motor, said cam having a rise portion and a drop-off portion, a cam follower riding the cam, spring means wound by the cam follower when raised by the cam, closing means actuated by the spring means when the cam follower drops down the drop off portion of the cam for closing said switch, opening means capable of opening said switch instantly after closure thereof and without requiring operation of the timer motor, switching means for controlling the timer motor, master control means, means causing the timer motor to operate in response to one condition of the master control means, causing the cam follower to drop down the drop off portion of the cam and allow the closing means to be actuated by the spring means for closing the switch, means for opening the timer motor switching means to stop the timer motor after closure of said switch, means responding to another condition of the master control means for causing the opening means to open the switch, and means for reclosing the timer motor switching means when said switch is opened.

Claim 15

The combination set forth in claim 11 in which thE cam means is driven by the motor by a drive means providing lost motion and in which the drop-off portion of the cam is shaped to cause the cam to be advanced by the cam follower riding down the sloping portion, and means utilizing such advance motion of the cam for maintaining the timer motor switching means closed for a period of time after closure of the switching means.

Claim 16

The combination set forth in claim 11 in which the cam means is driven by the motor by a drive means providing lost motion and in which the drop-off portion of the cam is shaped to cause the cam to be advanced by the cam follower riding down the sloping portion, and means utilizing such advance motion of the cam for actuating the timer motor switching means.

Claim 17

The combination set forth in claim 13 in which the timer motor switching means is cam operated by a lost motion cam, means actuated by the opening means for advancing the lost motion cam, and means operated by such advancing motion of the cam for closing the timer motor switching means.

Claim 18

In a timing mechanism, timing means including a timer motor, a main switch operated by the timing means, a timer motor switch arranged to control the timer motor, a timer motor cam arranged to actuate the timer motor switch, drive means whereby the timer motor cam is driven by the timer motor and can be advanced beyond the point driven by the timer motor, means for advancing the cam when the main switch is operated in one direction, and means for advancing the cam when the main switch is operated in the opposite direction.

Claim 19

In a timing mechanism, timing means including a timer motor, a main switch operated by the timing means, a timer motor switch arranged to control the timer motor, a timer motor cam arranged to actuate the timer motor switch, drive means whereby the timer motor cam is driven by the timer motor and can be advanced beyond the point driven by the timer motor, means for advancing the cam when the main switch is operated in one direction, and means for advancing the cam when the main switch is operated in the opposite direction.

Claim 20

In a multiple pole contact mechanism, the combination of, a switch block, a first pair of stationary contact and terminal members mounted on said block, a first movable contact member arranged to bridge said stationary contacts, a second pair of stationary contact and terminal members mounted on said block and spaced from said first pair, a second movable contact member arranged to bridge said second pair of stationary contacts, a switch operator slide extending through said base member, said slide extending between the two pairs of stationary contacts and having means carrying the two movable contact members, means for mounting said slide for moving to engage or disengage said contacts, operating means for the slide mounted on the side of the switch block away from said contacts, said operating means including a timer motor, spring means wound by the timer motor, closing means actuated by said spring means for closing the contacts, opening means for opening the contacts, and control means for selectively actuating said closing means and opening means.

Claim 21

In a multiple pole contact mechanism, the combination of, a switch block, a first pair of stationary contact and terminal members mounted on said block, a first movable contact member arranged to bridge said stationary contacts, a second pair of stationary contact and terminal members mounted on said block and spaced from said first pair, a second movable contact member arranged to bridge said second pair of stationary contacts, a switch operator slide extending through said base member, said slide extending between the two pairs of stationary contacts and having means carrying the two movable contact members, means for mounting said slide for moving to engage or disengage said contacts, operating means for the slide mounted on the side of the switch block away from said contacts, said operating means including a timer motor, spring means wound by the timer motor, closing means actuated by said spring means for closing the contacts, opening means for opening the contacts, and control means for selectively actuating said closing means and opening means.

Claim 22

The combination recited in claim 16 in which the control means includes means for starting the timer motor, and timing means operated by the timer motor for actuating the closing means.

Claim 23

The combination recited in claim 16 including a timer motor switch for controlling the timer motor, means for opening the timer motor switch after actuation of the closing means, means for reclosing the main switch upon actuation of the opening means, and means for reopening the timer motor switch a predetermined time thereafter.

Claim 24

The combination recited in claim 16 in which the means for winding the spring means is constructed and arranged to be independent of the position of said slide.

Claim 25

The combination recited in claim 19 in which the spring means is moved in one direction by the timer motor and allowed to move in the opposite direction by the control means in actuating said closing means.