Patent US5245674A successfully refreshed from Google Patents.
US3859908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compactor
Assignee: Emerson Electric Co
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Filing: 1973-04-23
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Granted: 1975-01-14
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Expires: 1993-04-23
Abstract
Abstract A trash compactor with a housing having a head space at its top, a trash container at its bottom and a trash loading space between the head space and the trash container, a trash loading port in the side of the housing aligned with the trash loading space, a pressure platen and a lazy tong or scissors extension linkage mounted at the top of the housing and operable to move the platen between one or more advanced positions in which the extension linkage spans across the trash loading space and the platen is imposing compacting pressure on trash within the container, and a retracted position in which the extension linkage and platen are withdrawn into said head space, thus leaving the intervening trash loading space open for loading trash into the container through said loading port and without having to withdraw the container from the housing for loading purposes.
Inventors
- 👤 Robert F Karls
- 👤 James H Enright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:53
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/006; B30B15/00; B30B15/0076; B30B9/00; B30B9/30; B30B9/3003; B30B9/3007; B30B9/306; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0961; Y10T292/0962
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
94 words
A trash compactor having a housing with a door, a ram in the housing, a motor for the ram, a motor control including switches, a door latch, a single lever control for sequentially actuating the latch and said switches, said single lever control comprising a lever, means on which the lever is moved in one direction to start the motor and in the other direction to stop the motor and means responsive to moving the lever in its motor starting direction to actuate said door latch and prevent opening said door during ram operation.
Claim 2
Dependent Claim
94 words
A trash compactor having a housing with a door, a ram in the housing, a motor for the ram, a motor control including switches, a door latch, a single lever control for sequentially actuating the latch and said switches, said single lever control comprising a lever, means on which the lever is moved in one direction to start the motor and in the other direction to stop the motor and means responsive to moving the lever in its motor starting direction to actuate said door latch and prevent opening said door during ram operation.
Claim 3
Dependent Claim
37 words
The invention of claim 1 in further combination with mechanical interlock means for preventing movement of said lever in its motor starting direction until the door is closed and in position to be engaged by said latch.
Claim 4
Dependent Claim
24 words
The invention of claim 1 in which said door comprises a service door which carries a loading door, said latch engaging both said doors.
Claim 5
Dependent Claim
101 words
A trash compactor having a housing with a door, a ram in the housing, a receptacle into which the ram compacts trash, said door having support means for said receptacle as the trash is compacted therein, a door latch to securely anchor the door to the housing during said compacting, and means coordinated with the advance of the ram toward said receptacle to actuate said door latch, said latch comprising a slide bar with cams, said door having cam followers, said means comprising means to actuate said slide bar to engage its said cams with the cam followers on the door.
Claim 6
Dependent Claim
101 words
A trash compactor having a housing with a door, a ram in the housing, a receptacle into which the ram compacts trash, said door having support means for said receptacle as the trash is compacted therein, a door latch to securely anchor the door to the housing during said compacting, and means coordinated with the advance of the ram toward said receptacle to actuate said door latch, said latch comprising a slide bar with cams, said door having cam followers, said means comprising means to actuate said slide bar to engage its said cams with the cam followers on the door.
Claim 7
Dependent Claim
43 words
The invention of claim 4 in which said cam followers comprise headed pins on the door, said cams on the slide bar comprising wedges with keyhole slots which engage the pin heads to draw the door tight when the slide bar is actuated.
Claim 8
Dependent Claim
38 words
The invention of claim 4 in which said means further comprises a cam follower attached to said slide bar, said ram having a cam which engages said cam follower in the course of ram movement toward said receptacle.
Claim 9
Dependent Claim
102 words
A trash compactor having a ram, a motor for the ram, a motor control including a start-stop switch, a manual controlled switch actuator for said start-stop switch, a ram controlled switch actuator for said start-stop switch and mechanism for sequentially subjecting said start-stop switch to said actuators in a compacting cycle including ram advance and ram withdrawal, said ram controlled switch actuator comprising means to actuate said start-stop switch to stop said motor at the conclusion of one cycle, said manual controlled switch actuator comprising means to actuate said start-stop switch to start said motor at the beginning of the next cycle.
Claim 10
Dependent Claim
102 words
A trash compactor having a ram, a motor for the ram, a motor control including a start-stop switch, a manual controlled switch actuator for said start-stop switch, a ram controlled switch actuator for said start-stop switch and mechanism for sequentially subjecting said start-stop switch to said actuators in a compacting cycle including ram advance and ram withdrawal, said ram controlled switch actuator comprising means to actuate said start-stop switch to stop said motor at the conclusion of one cycle, said manual controlled switch actuator comprising means to actuate said start-stop switch to start said motor at the beginning of the next cycle.
Claim 11
Dependent Claim
28 words
The invention of claim 7 in which said manual controlled switch actuator furtheR comprises means to over-ride said ram-controlled switch actuator in the course of starting said motor.
Claim 12
Dependent Claim
31 words
The invention of claim 8 in which said ram controlled switch actuator includes a spring which yields to said manual controlled switch actuator in the course of being over ridden thereby.
Claim 13
Dependent Claim
30 words
The invention of claim 7 in combination with jam sensing means to sense a jam during ram advance, and means responsive to said jam sensing means to stop said motor.
Claim 14
Dependent Claim
28 words
The invention of claim 10 in which said switch has a leaf arm actuator, said last-mentioned means comprising a lever to move said actuator to actuate said switch.
Claim 15
Dependent Claim
57 words
The invention of claim 11 in which said lever has an arm normally under the pressure of a ram part and which holds said lever away from said leaf arm actuator, said jam sensing means comprising means to relieve the pressure of said ram part against said arm, whereby said lever is free to move said actuator.
Claim 16
Dependent Claim
41 words
The invention of claim 7 in which said motor control further includes motor reversing switch means, said ram controlled switch actuator further comprising means to actuate said motor reversing switch means in the course of its actuation of said start-stop switch.
Claim 17
Dependent Claim
30 words
The invention of claim 13 in which said motor reversing switch means comprises means for conditioning the motor for reverse operation on the next starting actuation of the start-stop switch.
Claim 18
Dependent Claim
56 words
The invention of claim 7 in which said manual controlled switch actuator comprises a swing lever, means responsive to swinging movement of the lever in one direction to actuate said switch to start the motor and means responsive to swinging movement of the lever in the opposite direction to actuate said switch to stop the motor.
Claim 19
Dependent Claim
36 words
The invention of claim 15 in which said trash compactor has a door and a door latch, in combination with means responsive to movement of said lever in said one direction to actuate said door latch.
Claim 20
Dependent Claim
101 words
A trash compactor having a housing, a door, compacting mechanism within the housing, a control mechanism including a lever, a door latch actuated by said lever and a lock, said lock having one position in which said lever is locked in a position in which the compacting mechanism is inoperative and the door latch is de-actuated, whereby the door can be opened to load trash into the housing, said lock having another position in which said lever is locked in a position in which the compacting mechanism is inoperative and the door lock is actuated, whereby the door cannot be opened.
Claim 21
Dependent Claim
101 words
A trash compactor having a housing, a door, compacting mechanism within the housing, a control mechanism including a lever, a door latch actuated by said lever and a lock, said lock having one position in which said lever is locked in a position in which the compacting mechanism is inoperative and the door latch is de-actuated, whereby the door can be opened to load trash into the housing, said lock having another position in which said lever is locked in a position in which the compacting mechanism is inoperative and the door lock is actuated, whereby the door cannot be opened.
Claim 22
Dependent Claim
28 words
The invention of claim 17 in which said lever swings, said lock comprising a plunger which moves into the path of lever swinging motion in said one position.
Claim 23
Dependent Claim
24 words
The invention of claim 18 in which said plunger has a socket which embraces the lever when the lock is in said other position.
Claim 24
Dependent Claim
100 words
A trash compactor having a housing with a door, a ram in the housing, a receptacle into which the ram compacts trash, a door latch to prevent opening of the door during ram operation and means responsive to the advance of the ram toward said receptacle to actuate said door latch, said door latch comprising interengaging parts respectively on the door and the housing, said means comprising a cam interconnected to the ram and a cam follower interconnected to the part on the housing and which cam follower responds to said cam to engage said parts when the ram advances.
Claim 25
Dependent Claim
100 words
A trash compactor having a housing with a door, a ram in the housing, a receptacle into which the ram compacts trash, a door latch to prevent opening of the door during ram operation and means responsive to the advance of the ram toward said receptacle to actuate said door latch, said door latch comprising interengaging parts respectively on the door and the housing, said means comprising a cam interconnected to the ram and a cam follower interconnected to the part on the housing and which cam follower responds to said cam to engage said parts when the ram advances.
Claim 26
Dependent Claim
31 words
The invention of claim 20 in which one of said interengaging parts on the door and housing comprises a lock finger and the other of said parts comprises a latch opening.
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |