US3805084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compactor cycle control
Assignee: Whirlpool Corp
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Filing: 1972-08-11
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Granted: 1974-04-16
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Expires: 1992-08-11
Abstract
Abstract A compacting machine has a reversible motor drive for a ram movable in a compacting stroke and a retracting stroke. Directional controls prepare the drive for a compacting stroke when the ram is at its fully retracted starting position and prepare the drive dor a retracting stroke as soon as the ram leaves the starting position. A cycle ending switch is momentarily actuated as the ram nears the end of its retracting stroke to cut off power from the drive before the directional switch is reversed at the starting position in preparation for the next operating cycle.
Inventors
- 👤 V Schuerman
- 👤 E Engebretsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:07
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02P; H02P23/00; H02P23/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
A control for a compacting machine having a receptacle for trash material, a ram mounted for compacting movement in a compacting stroke entering said receptacle and an opposite retracting stroke to a retracted starting position, a power supply, a reversible motor connected to drive said ram, a directional switch connected to control the forward and reverse operation of said motor corresponding to the compacting and retracting strokes of said ram, means normally holding said directional switch in its reverse position, and a starting switch connected between said directional switch and said power supply; the improvement comprising means operated by said ram for moving said directional switch to its forward position only when said ram is at its starting position, relay means associated with said starting switch and connected to complete a power circuit to said directional switch once said starting switch has been momentarily closed, a cycle ending switch controlling the connection of said relay means to said power supply, and means for momentarily actuating said cycle ending switch in response to approach of said ram in its retracting stroke to its starting position to cut off power from said motor before said directional switch is moved at the starting position.
Claim 2
Dependent Claim
201 words
A control for a compacting machine having a receptacle for trash material, a ram mounted for compacting movement in a compacting stroke entering said receptacle and an opposite retracting stroke to a retracted starting position, a power supply, a reversible motor connected to drive said ram, a directional switch connected to control the forward and reverse operation of said motor corresponding to the compacting and retracting strokes of said ram, means normally holding said directional switch in its reverse position, and a starting switch connected between said directional switch and said power supply; the improvement comprising means operated by said ram for moving said directional switch to its forward position only when said ram is at its starting position, relay means associated with said starting switch and connected to complete a power circuit to said directional switch once said starting switch has been momentarily closed, a cycle ending switch controlling the connection of said relay means to said power supply, and means for momentarily actuating said cycle ending switch in response to approach of said ram in its retracting stroke to its starting position to cut off power from said motor before said directional switch is moved at the starting position.
Claim 3
Dependent Claim
67 words
A control as defined in claim 1, said motor having a running winding and a starting winding and a motor speed responsive switch connected between said directional switch and said starting winding, whereby said motor will start and run in the reverse direction at any time said ram is away from its starting position and said speed responsive switch closes due to predetermined slowing of said motor.
Claim 4
Dependent Claim
113 words
A control as defined in claim 1, said means for actuating said cycle ending switch including an operating lever for said cycle ending switch, an arm pivoted to said lever and extending to a location near said starting position, strike means on said ram operative to engage said lever as said ram moves through its compacting and retracting strokes, and resilient means acting between said lever and said arm holding said arm in position to transmit motion from said strike to said lever in the retracting stroke and allowing relative movement between said arm and said lever in the compacting stroke whereby said cycle ending switch is not actuated during the compacting stroke.
Claim 5
Dependent Claim
99 words
A control as defined in claim 1, wherein said motor is an electric motor with a starting winding, a motor speed responsive switch controlling said starting winding, a main winding, and said directional switch is connected to reverse the phasing of said starting winding with respect to said main winding, said relay means including a coil connected in series circuit with said starting switch, said power supply, said cycle ending switch and said main winding, said relay means also having an armature controlled by said coil and effective to hold said starting switch closed when said coil is energized.
Claim 6
Dependent Claim
202 words
A control for a trash compacting machine having a ram mounted for movement in a compacting stroke to compact material and an opposite retracting stroke to a retracted starting position, a power supply, a reversible electric motor connected to drive said ram, and including a motor speed responsive switch and a starting winding, a directional switch connected to switch the power supply to said starting winding for forward and reverse operation corresponding to the compacting and retracting strokes of said ram, and a starting circuit connecting said directional switch to said power supply and including a starting switch; the improvement comprising means operated by said ram for moving said directional switch to its forward position only when said ram is at its starting position, relay means in said starting circuit connected to maintain power to said directional switch once said starting switch has been momentarily closed, a cycle ending switch connected in series with said relay means and said power supply, and means for momentarily opening said cycle ending switch in response to approach of said ram in its retracting stroke to its starting position to terminate power to said relay means as said directional switch is moved at the starting position.
Claim 7
Dependent Claim
202 words
A control for a trash compacting machine having a ram mounted for movement in a compacting stroke to compact material and an opposite retracting stroke to a retracted starting position, a power supply, a reversible electric motor connected to drive said ram, and including a motor speed responsive switch and a starting winding, a directional switch connected to switch the power supply to said starting winding for forward and reverse operation corresponding to the compacting and retracting strokes of said ram, and a starting circuit connecting said directional switch to said power supply and including a starting switch; the improvement comprising means operated by said ram for moving said directional switch to its forward position only when said ram is at its starting position, relay means in said starting circuit connected to maintain power to said directional switch once said starting switch has been momentarily closed, a cycle ending switch connected in series with said relay means and said power supply, and means for momentarily opening said cycle ending switch in response to approach of said ram in its retracting stroke to its starting position to terminate power to said relay means as said directional switch is moved at the starting position.
Claim 8
Dependent Claim
133 words
A control for a trash compacting machine having a housing and a ram mounted for movement in a forward compacting stroke to compact material and a reverse retracting stroke to a retracted starting position, a power supply, a reversible electric motor connected to drive said ram, a directional switch connected to control the forward and reverse operation of said motor corresponding to the compacting and retracting strokes of said ram, and a starting circuit connecting said directional switch to said power supply and including a starting switch; the improvement comprising said motor being carried in said ram and means supporting said directional switch on said ram in position to engage a part of said housing to move said directional switch to its forward position only when said ram is at its starting position.
Claim 9
Dependent Claim
133 words
A control for a trash compacting machine having a housing and a ram mounted for movement in a forward compacting stroke to compact material and a reverse retracting stroke to a retracted starting position, a power supply, a reversible electric motor connected to drive said ram, a directional switch connected to control the forward and reverse operation of said motor corresponding to the compacting and retracting strokes of said ram, and a starting circuit connecting said directional switch to said power supply and including a starting switch; the improvement comprising said motor being carried in said ram and means supporting said directional switch on said ram in position to engage a part of said housing to move said directional switch to its forward position only when said ram is at its starting position.
References Cited (Backward Citations)
US3720844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |