Patent US3869978A successfully refreshed from Google Patents.
US3869978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste compactor
Assignee: Owatonna Tool Co
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Filing: 1973-05-09
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Granted: 1975-03-11
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Expires: 1993-05-09
Abstract
Abstract A waste compactor having a casing with an opening in the front wall thereof with a wheeled cart movable into the casing and holding a container to receive waste material with means for locking the cart to the casing, a loading chute carried by the cart and compacting structure in the casing including a fluid operated movable disc having a downwardly concave contour to have compacting forces acting radially inwardly toward the centerline of the compacting force and exerting a predetermined maximum pressure for a sufficient period of time to impart a ''''set'''' to the waste material in the container carried by the cart.
Inventors
- 👤 Richard W Steinberg
- 👤 Samuel B Mcclocklin
- 👤 Clarence L Kostelecky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:51
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3003; B30B9/3007; B30B9/3032; B30B9/3057
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
A compactor including a separable wheeled cart, a casing with a front wall having an opening to receive said cart, means to removably lock said cart to said casing, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cArt to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on all of said material immediately beneath said disc.
Claim 2
Dependent Claim
130 words
A compactor including a separable wheeled cart, a casing with a front wall having an opening to receive said cart, means to removably lock said cart to said casing, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cArt to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on all of said material immediately beneath said disc.
Claim 3
Dependent Claim
130 words
A compactor including a separable wheeled cart, a casing with a front wall having an opening to receive said cart, means to removably lock said cart to said casing, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cArt to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on all of said material immediately beneath said disc.
Claim 4
Dependent Claim
130 words
A compactor including a separable wheeled cart, a casing with a front wall having an opening to receive said cart, means to removably lock said cart to said casing, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cArt to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on all of said material immediately beneath said disc.
Claim 5
Dependent Claim
46 words
A compactor as defined in claim 1 wherein said loading chute is mounted for pivotal movement about a generally horizontal axis and with a lower end of said chute extending beyond said axis to overlie said container and assure delivery of all material into the container.
Claim 6
Dependent Claim
61 words
A compactor as defined in claim 1 wherein said means to removably lock the cart include a pair of hooks at the lower end of the casing, a pair of pins on the cart engageable in said hooks, and latch means carried on the casing to engage the upper end of said cart and hold said hooks and pins in engagement.
Claim 7
Dependent Claim
69 words
A compactor as defined in claim 3 wherein the wheels of said cart are offset and at a level beneath said pins whereby said cart may be tilted at an angle as it is moved into said casing on said wheels to move said pins to a position overlying said hooks and then the cart is placed in upright position to lower said pins into engagement with said hooks.
Claim 8
Dependent Claim
66 words
A compactor as defined in claim 1 including an electrical control circuit with a plurality of manually operated control buttons, said casing having a movable panel covering said control buttons, latch means on the casing for latching the cart to the casing, and said latch means being operatively connected to said movable panel whereby a cart is locked in place when said control buttons are exposed.
Claim 9
Dependent Claim
177 words
A compactor including a casing with a front wall having an opening to receive a cart, a cart having transport wheels and completely separable from the casing, means to removably lock said cart to said casing including a pair of hooks at the lower end of the casing, a pair of pins on the cart engageable in said hooks, and latch means carried on the casing to engage the upper end of said cart and hold said hooks and pins in engagement, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cart to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc, and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on said material.
Claim 10
Dependent Claim
177 words
A compactor including a casing with a front wall having an opening to receive a cart, a cart having transport wheels and completely separable from the casing, means to removably lock said cart to said casing including a pair of hooks at the lower end of the casing, a pair of pins on the cart engageable in said hooks, and latch means carried on the casing to engage the upper end of said cart and hold said hooks and pins in engagement, said cart having a front wall which closes off said opening when the cart is in locked position, means on said cart to hold a container for receiving material to be compacted, said cart front wall being defined at least in part by a loading chute mounted for pivotal movement relative to the remainder of the cart, and compacting means within the casing including a smooth surfaced downwardly concave disc, and means including a fluid motor for lowering said disc against material in the container to exert forces acting downwardly and inwardly on said material.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |