US3581028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquidizer timer jogger with improved drive means including lost motion connection
Assignee: Dynamics Corp of America
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Filing: 1969-11-20
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Granted: 1971-05-25
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Expires: 1989-11-20
Abstract
Abstract An electrically powered liquidizer controlled by a timer-jogger switch means actuated by a lost motion between a manual control and a driven slip clutch member when the control is turned in one direction to energize the liquidizer and a timer drive member without relative lost motion, and turned in the opposite direction with lost motion to manually energize the liquidizer continuously or intermittently for a period of time which, at will, can be a long or momentary period of time. The control is resiliently held in OFF position against inadvertent movement.
Inventors
- 👤 Bruno M Valbona
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/2106
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
203 words
In combination with an electrical appliance having a motor and control panel: a housing mounted on sAid panel including a switch section and a timer motor and gear reduction section having a spur gear extending therefrom into the switch section; a drive shaft journaled in said switch section; gear means carried by said shaft in mesh with said spur gear; collar means carried by said shaft; slip clutch means between one of said means and the shaft, the other of said means being secured to the shaft; a cam member carried by said one of said means and having a recess; a switch serially connecting the appliance to a source of electrical power and including a spring blade having an element engageable in said recess in its OFF position; time indicia-carrying means exposed to manual access on said panel including a knob member for actuating said cam member; and lost motion transmission means interconnected said collar means and one of said members in positive drive relationship to close said switch when the knob member is moved in one direction and to open the switch when said collar means is moved in the opposite direction to return the cam member to its OFF position.
Claim 2
Dependent Claim
203 words
In combination with an electrical appliance having a motor and control panel: a housing mounted on sAid panel including a switch section and a timer motor and gear reduction section having a spur gear extending therefrom into the switch section; a drive shaft journaled in said switch section; gear means carried by said shaft in mesh with said spur gear; collar means carried by said shaft; slip clutch means between one of said means and the shaft, the other of said means being secured to the shaft; a cam member carried by said one of said means and having a recess; a switch serially connecting the appliance to a source of electrical power and including a spring blade having an element engageable in said recess in its OFF position; time indicia-carrying means exposed to manual access on said panel including a knob member for actuating said cam member; and lost motion transmission means interconnected said collar means and one of said members in positive drive relationship to close said switch when the knob member is moved in one direction and to open the switch when said collar means is moved in the opposite direction to return the cam member to its OFF position.
Claim 3
Dependent Claim
32 words
The combination called for in claim 1 including a manually actuated means carried by the housing to close said switch while being manually held when said cam member is in OFF position.
Claim 4
Dependent Claim
22 words
The combination called for in claim 2 in which said manually actuated means includes a lever means, terminally engaging said first-mentioned switch.
Claim 5
Dependent Claim
42 words
The combination called for in claim 1 including a second switch connecting the timer motor in parallel with the motor of said appliance by said cam means when said knob member is moved in said one direction to close the first-mentioned switch.
Claim 6
Dependent Claim
125 words
In a food-processing appliance having a power motor and a timer motor, a time control for the motors comprising: three-spaced switch contact elements movable with respect to each other to provide two switches; manual means for moving one of the contact elements to contact the intermediate contact element to close one of the switches in a circuit including a power source and the power motor; second means for moving said intermediate contact element and the remaining switch contact element with respect to each other to close the other of the switches in a circuit including the power source and the timer motor; and snap action means activated by said manual means and operated by said timer motor to open said other switch with a snap-action.
Claim 7
Dependent Claim
125 words
In a food-processing appliance having a power motor and a timer motor, a time control for the motors comprising: three-spaced switch contact elements movable with respect to each other to provide two switches; manual means for moving one of the contact elements to contact the intermediate contact element to close one of the switches in a circuit including a power source and the power motor; second means for moving said intermediate contact element and the remaining switch contact element with respect to each other to close the other of the switches in a circuit including the power source and the timer motor; and snap action means activated by said manual means and operated by said timer motor to open said other switch with a snap-action.
Claim 8
Dependent Claim
67 words
The combination called for in claim 5 in which the manual means includes a manual member carrying the said snap action means with a cam element engaging one of the contact elements to close said one of the switches by manual movement in one direction; and said snap action means includes a recess adjacent to said cam element moved in the opposite direction by said timer motor.
Claim 9
Dependent Claim
65 words
The combination called for in claim 5 in which said snap action means includes: a lost motion linkage in positive drive relationship when said manual means is moved in one direction to a time start position and when said second means is moved in the opposite direction by said timer motor to a time terminating position; said positive drive relationship being terminated in resting position.
Claim 10
Dependent Claim
33 words
The combination called for in claim 5 including a second manual mean for moving the two contact elements of the one switch relative to each other to close the switch while manually actuated.
Claim 11
Dependent Claim
31 words
The combination called for in claim 5 in which said snap action means includes a disc peripherally having a relief in the OFF position bordered by cams of different effective heights.
Claim 12
Dependent Claim
137 words
In a timer for electrical appliances: a timer motor; a switch connected in series with the timer motor and a source of power; a shaft driven by the timer motor carrying a rotated member; a collar member on said shaft; slip clutch means between one of the members and the shaft, the other member being secured to the shaft; cam member roTatable manually to open said switch in a resting position and closing the switch when rotated in one direction from its resting position; lost motion transmission means interconnecting said collar member and said cam member and engaging in positive interdrive relationship when said cam is moved in one direction to close the switch and when said collar member is moved in the opposite direction to return the cam member to resting position to open the switch.
Claim 13
Dependent Claim
137 words
In a timer for electrical appliances: a timer motor; a switch connected in series with the timer motor and a source of power; a shaft driven by the timer motor carrying a rotated member; a collar member on said shaft; slip clutch means between one of the members and the shaft, the other member being secured to the shaft; cam member roTatable manually to open said switch in a resting position and closing the switch when rotated in one direction from its resting position; lost motion transmission means interconnecting said collar member and said cam member and engaging in positive interdrive relationship when said cam is moved in one direction to close the switch and when said collar member is moved in the opposite direction to return the cam member to resting position to open the switch.
Claim 14
Dependent Claim
28 words
The combination called for in claim 10 including a push button to close said switch by applied manual pressure when said cam means is in its resting position.
Claim 15
Dependent Claim
32 words
The combination called for in claim 10 in which said lost motion device includes a key means on one of the members alternatively engaging angularly spaced wall means on the other member.
Claim 16
Dependent Claim
25 words
The combination called for in claim 10 in which said cam member comprises a disc section peripherally having a cam relief in said resting position.
Claim 17
Dependent Claim
174 words
In combination with an electrical appliance powered by a universal motor, a timer switch therefor, comprising: an electrical power source including two connection of different potentials; a timer motor; two switch means, one for connecting the universal motor and the other for connecting the timer motor to said two power source connections; a movable member having a manually set time meter movable in one direction from an intermediate OFF position to close both switch means and in the other direction to close said one switch means; and means driven by said timer motor when energized to move said movable member in said other direction including a lost motion linkage and a slip friction clutch interconnecting in series said timer motor and movable member; said lost motion linkage being in positive drive relationship when said movable member is moved in said one direction manually to a time start position and when moved in said other direction by said timer motor to a time terminating position; said positive drive relationship being terminated in said OFF position.
Claim 18
Dependent Claim
174 words
In combination with an electrical appliance powered by a universal motor, a timer switch therefor, comprising: an electrical power source including two connection of different potentials; a timer motor; two switch means, one for connecting the universal motor and the other for connecting the timer motor to said two power source connections; a movable member having a manually set time meter movable in one direction from an intermediate OFF position to close both switch means and in the other direction to close said one switch means; and means driven by said timer motor when energized to move said movable member in said other direction including a lost motion linkage and a slip friction clutch interconnecting in series said timer motor and movable member; said lost motion linkage being in positive drive relationship when said movable member is moved in said one direction manually to a time start position and when moved in said other direction by said timer motor to a time terminating position; said positive drive relationship being terminated in said OFF position.
Claim 19
Dependent Claim
45 words
The combination called for in claim 14 in which said movable member comprises a disc having peripheral cam reliefs of different depths with the deepest one for OFF position intermediate the others and the highest cam relief engaged by said movement in said one direction.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |