Patent US3938433A successfully refreshed from Google Patents.
US3938433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trash compactor with clock timer control
Assignee: Whirlpool Corp
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Filing: 1974-09-17
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Granted: 1976-02-17
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Expires: 1994-09-17
Abstract
Abstract A trash compactor is provided with manual controls for causing a compacting cycle and additional clock timer operated controls which can operate the compactor ram through a cycle with an extended delay period after a compacting stroke at some time of day when the compactor is unlikely to be in use for a substantial length of time.
Inventors
- 👤 Charles J. Borum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:11
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3003; B30B9/3007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
A control for a compacting machine having a receptacle for trash material and 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 manually initiated cycle control circuit for said motor including a directional switch connected to cause forward and reverse operation of said motor in a cycle corresponding to the compacting and retracting strokes of said ram and a starting switch for operatively connecting said directional switch with said power supply; the improvement comprising a timer unit having control means connected in said circuit to start said motor and to operate said ram independent of manual initiation through a compacting stroke at a predetermined time, to stop said ram upon completion of the compacting stroke, and to delay the retracting stroke of said ram for a substantial period of time.
Claim 2
Dependent Claim
156 words
A control for a compacting machine having a receptacle for trash material and 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 manually initiated cycle control circuit for said motor including a directional switch connected to cause forward and reverse operation of said motor in a cycle corresponding to the compacting and retracting strokes of said ram and a starting switch for operatively connecting said directional switch with said power supply; the improvement comprising a timer unit having control means connected in said circuit to start said motor and to operate said ram independent of manual initiation through a compacting stroke at a predetermined time, to stop said ram upon completion of the compacting stroke, and to delay the retracting stroke of said ram for a substantial period of time.
Claim 3
Dependent Claim
159 words
A control for a compacting machine having a receptacle for material to be compacted and a power operated ram mounted for cyclical movement in a compacting stroke entering said receptacle and an opposite retracting stroke to a starting position removed from said receptacle, a reversible drive connected to said ram, a directional switch connected to control forward and reverse operation of said drive corresponding to the compacting and retracting strokes of said ram, and a control circuit incorporating said directional switch and operative to power said drive to move said ram to compact material in the receptacle and then to retract the ram and stop; the improvement comprising clock-controlled means incorporated in said circuit and operative to cause an automatic cycle of ram movement independent of manual initiation through compacting and retracting strokes and a delay period at the end of a compacting stroke of sufficient length to cause the compacted material to remain in the deformed compacted condition.
Claim 4
Dependent Claim
159 words
A control for a compacting machine having a receptacle for material to be compacted and a power operated ram mounted for cyclical movement in a compacting stroke entering said receptacle and an opposite retracting stroke to a starting position removed from said receptacle, a reversible drive connected to said ram, a directional switch connected to control forward and reverse operation of said drive corresponding to the compacting and retracting strokes of said ram, and a control circuit incorporating said directional switch and operative to power said drive to move said ram to compact material in the receptacle and then to retract the ram and stop; the improvement comprising clock-controlled means incorporated in said circuit and operative to cause an automatic cycle of ram movement independent of manual initiation through compacting and retracting strokes and a delay period at the end of a compacting stroke of sufficient length to cause the compacted material to remain in the deformed compacted condition.
Claim 5
Dependent Claim
158 words
A control for a compacting machine having a receptacle for trash material and 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 manually initiated cycle control circuit for said motor including a directional switch connected to cause forward and reverse operation of said motor in a cycle corresponding the compacting and retracting strokes of said ram and a starting switch for operatively connecting said directional switch with said power supply; the improvement comprising a timer unit connected to actuate said control circuit automatically at a preselected time independent of manual initiation to initiate a cycle and to stop said ram upon completion of a compacting stroke for a substantial period of time, and means operative to complete the automatically actuated cycle by retracting said ram at the end of said time period.
Claim 6
Dependent Claim
158 words
A control for a compacting machine having a receptacle for trash material and 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 manually initiated cycle control circuit for said motor including a directional switch connected to cause forward and reverse operation of said motor in a cycle corresponding the compacting and retracting strokes of said ram and a starting switch for operatively connecting said directional switch with said power supply; the improvement comprising a timer unit connected to actuate said control circuit automatically at a preselected time independent of manual initiation to initiate a cycle and to stop said ram upon completion of a compacting stroke for a substantial period of time, and means operative to complete the automatically actuated cycle by retracting said ram at the end of said time period.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |