US3559823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ram feed for incinerators
Assignee: ENVIRONMENTAL SYSTEMS COMPANY A CORPOF DE
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Filing: 1969-03-14
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Granted: 1971-02-02
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Expires: 1989-03-14
Abstract
Abstract Hydraulic ram apparatus for conveying a mixture of liquid and solid scrap material from a supply hopper through a conduit to an incinerator wherein a shearing head on a feed ram cooperates with a shearing edge on the outlet of the supply hopper to cut up large pieces of solid scrap material as the feed ram reciprocates longitudinally within the supply conduit past the supply hopper outlet. A vertically reciprocal packing piston forces the scrap material out of the supply hopper into the supply conduit in synchronization with the reciprocal movement of the feed ram; and scrap material is tightly compacted by the feed ram within straight, tubular, compacting sections at the inlet and discharge ends of the expanding supply conduit to seal the supply conduit against the rearward movement of combustible gases between the incinerator and supply hopper.
Inventors
- 👤 Albert Ostrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:57
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/44; F23G5/442
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
203 words
Apparatus for feeding scrap material comprised of liquids and solids to an incinerator comprising: a supply hopper having an outlet opening; a supply conduit inclined upwardly from an inlet end communicating with said outlet opening of said supply hopper towards a discharge end connected to said incinerator, whereby a quantity of liquid scrap material will be maintained at the lower end of said supply conduit to provide a liquid seal across said supply hopper outlet opening, said supply conduit expanding in cross-sectional area in a direction from said supply hopper towards said incinerator and terminating at a discharge section of constant cross-sectional area; a hydraulic feed ram reciprocally movable longitudinally within said supply conduit back and forth past said supply hopper outlet opening to move scrap material from said supply hopper through said conduit to said incinerator; and a straight, loading and compacting conduit section of constant cross-sectional area at said inlet end of said supply conduit communicating with said supply hopper outlet opening, scrap material being compacted tightly within said straight conduit section in sealing contact therewith by said feed ram to thereby provide an additiOnal safety seal to prevent the backflow of combustible gases from said incinerator into said supply hopper.
Claim 2
Dependent Claim
203 words
Apparatus for feeding scrap material comprised of liquids and solids to an incinerator comprising: a supply hopper having an outlet opening; a supply conduit inclined upwardly from an inlet end communicating with said outlet opening of said supply hopper towards a discharge end connected to said incinerator, whereby a quantity of liquid scrap material will be maintained at the lower end of said supply conduit to provide a liquid seal across said supply hopper outlet opening, said supply conduit expanding in cross-sectional area in a direction from said supply hopper towards said incinerator and terminating at a discharge section of constant cross-sectional area; a hydraulic feed ram reciprocally movable longitudinally within said supply conduit back and forth past said supply hopper outlet opening to move scrap material from said supply hopper through said conduit to said incinerator; and a straight, loading and compacting conduit section of constant cross-sectional area at said inlet end of said supply conduit communicating with said supply hopper outlet opening, scrap material being compacted tightly within said straight conduit section in sealing contact therewith by said feed ram to thereby provide an additiOnal safety seal to prevent the backflow of combustible gases from said incinerator into said supply hopper.
Claim 3
Dependent Claim
81 words
Apparatus for feeding scrap material to an incinerator as defined in claim 1, and further including: packing means for loading scrap material from said supply hopper through said hopper outlet opening into said inlet end of said supply conduit, said packing means being movable within said hopper to a position across said hopper outlet opening to pack scrap material into said supply conduit in front of said feed ram when said ram is retracted rearwardly of said supply hopper outlet opening.
Claim 4
Dependent Claim
55 words
Apparatus for feeding scrap material to an incinerator as defined in claim 2 wherein: said packing means comprises a double-acting hydraulically actuated piston vertically reciprocal within said hopper, said piston having a packing head thereon which extends across said hopper outlet opening when said piston is moved downwardly to the bottom of its packing stroke.
Claim 5
Dependent Claim
175 words
In combination with an incinerator having an elongated supply conduit extending therefrom to a supply hopper having an outlet opening in the bottom thereof communicating with said supply conduit, improved means for conveying liquid and solid scrap material from said supply hopper through said conduit into said incinerator comprising: a hydraulically actuated feed ram reciprocal within said supply conduit along the longitudinal axis thereof; a shearing edge on said outlet opening of said supply hopper; and a shearing head on the forward end of said feed ram slidably cooperable with said shearing edge to cut off solid pieces of scrap material therebetween to a size movable within said supply conduit as said feed ram reciprocates forwardly on a feed stroke past said shearing edge, said shearing head being rotatably and removably mounted on the forward end of said feed ram, whereby said shearing head may be periodically rotated to bring an unworn portion thereof into cooperative relation with said shearing edge, said shearing head being ultimately removed and replaced as its entire periphery becomes worn.
Claim 6
Dependent Claim
175 words
In combination with an incinerator having an elongated supply conduit extending therefrom to a supply hopper having an outlet opening in the bottom thereof communicating with said supply conduit, improved means for conveying liquid and solid scrap material from said supply hopper through said conduit into said incinerator comprising: a hydraulically actuated feed ram reciprocal within said supply conduit along the longitudinal axis thereof; a shearing edge on said outlet opening of said supply hopper; and a shearing head on the forward end of said feed ram slidably cooperable with said shearing edge to cut off solid pieces of scrap material therebetween to a size movable within said supply conduit as said feed ram reciprocates forwardly on a feed stroke past said shearing edge, said shearing head being rotatably and removably mounted on the forward end of said feed ram, whereby said shearing head may be periodically rotated to bring an unworn portion thereof into cooperative relation with said shearing edge, said shearing head being ultimately removed and replaced as its entire periphery becomes worn.
Claim 7
Dependent Claim
203 words
Apparatus for feeding scrap material comprised of liquids and solids to an incinerator comprising: a supply hopper having an outlet opening; a supply conduit having a discharge end connected to said incinerator and an inlet end communicating with said outlet opening of said supply hopper, said supply conduit being inclined upwardly from said supply hopper towards said incinerator, whereby a quantity of liquid scrap material will be maintained at the lower end of said supply conduit to provide a liquid seal across said supply hopper outlet opening; a hydraulic feed ram reciprocally movable longitudinally within said supply conduit back and forth past said supply hopper outlet opening to move scrap material from said supply hopper through said conduit to said incinerator; and an elongated slot formed in the top surface of said feed ram and disposed in direct, underlying relation to said supply hopper outlet opening when said feed ram reciprocates forwardly on a feed stroke, said elongated slot serving as a flow passage through which liquid scrap material may flow rearwardly through said hopper outlet opening and into said supply hopper to maintain a predetermined liquid level therein above said outlet opening as said feed ram reciprocates forwardly on its feed stroke.
Claim 8
Dependent Claim
203 words
Apparatus for feeding scrap material comprised of liquids and solids to an incinerator comprising: a supply hopper having an outlet opening; a supply conduit having a discharge end connected to said incinerator and an inlet end communicating with said outlet opening of said supply hopper, said supply conduit being inclined upwardly from said supply hopper towards said incinerator, whereby a quantity of liquid scrap material will be maintained at the lower end of said supply conduit to provide a liquid seal across said supply hopper outlet opening; a hydraulic feed ram reciprocally movable longitudinally within said supply conduit back and forth past said supply hopper outlet opening to move scrap material from said supply hopper through said conduit to said incinerator; and an elongated slot formed in the top surface of said feed ram and disposed in direct, underlying relation to said supply hopper outlet opening when said feed ram reciprocates forwardly on a feed stroke, said elongated slot serving as a flow passage through which liquid scrap material may flow rearwardly through said hopper outlet opening and into said supply hopper to maintain a predetermined liquid level therein above said outlet opening as said feed ram reciprocates forwardly on its feed stroke.
Claim 9
Dependent Claim
115 words
Apparatus for supplying scrap material through an incinerator as defined in claim 4, and further including: an elongated slot running lengthwise along the top surface of said feed ram; and a plurality of slots equally spaced around the periphery of said rotatable shearing head, one of said slots being rotated into alignment with said elongated ram slot each time said shearing head is rotated to a new position, said elongated ram slot and the one of said shearing head slots in alignment therewith providing a continuous passage through which liquid scrap material may flow reaRwardly through said hopper outlet opening and into said supply hopper as said feed ram moves forwardly on its feed stroke.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |