US3557940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrel elevator
Assignee: Mac Manufacturing Co Inc
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Filing: 1968-10-11
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Granted: 1971-01-26
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Expires: 1988-10-11
Abstract
Abstract Discloses a barrel elevator, including a vertically oriented endless conveyor trained over an upper and lower sprocket and containing a series of cradles suspended therefrom in which the barrels are loaded on the ascending side of said conveyor and unloaded on the descending side of said conveyor. Discloses means and methods for automatically and gravitationally unloading barrels at a preselected level by means of an inclined unloading member extending from an unloading station to a point past the perpendicular through the center of gravity of the barrel from the cradle and gravitationally roll said barrel down the inclined member. Guide rods, vertically disposed behind the swinging cradles, prevent barrels from tipping out of the cradles to fall down into the shaft.
Inventors
- 👤 Harry T Rogers
- 👤 James H Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:35
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/56; B65G47/57; B66; B66B; B66B9/00; B66B9/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
208 words
An elevator system, including a vertically oriented endless conveyor, a series of load-bearing cradles suspended therefrom and a series of vertically separated unloading stations associated therewith: A. each of said load-bearing cradles comprising two curved loadreceiving arms for receiving and supporting a cylindrical member on its side and a transverse connecting bar connecteD to said load receiving arms, 1. said transverse connecting bar being offset at its point of connection past the perpendicular through the center of gravity of said cylindrical member on said load-bearing cradle; B. an unloading member, extending from said unloading station into the path of said load-bearing cradles, but out of contact with said receiving arms, past the perpendicular through said center of gravity, but short of rubbing contact with said transverse connecting bar, 1. said unloading member being inclined toward said unloading station, so as to contact the bottom surface of the side of said cylindrical member, to separate said cylindrical member from said cradle, and to gravitationally discharge said cylindrical member down said inclined unloading member to said unloading station; and C. the further combination therewith of a vertically oriented guide rod mounted behind said free swinging load bearing cradles and acting to prevent tipping of cylindrical members out of said cradles.
Claim 2
Dependent Claim
208 words
An elevator system, including a vertically oriented endless conveyor, a series of load-bearing cradles suspended therefrom and a series of vertically separated unloading stations associated therewith: A. each of said load-bearing cradles comprising two curved loadreceiving arms for receiving and supporting a cylindrical member on its side and a transverse connecting bar connecteD to said load receiving arms, 1. said transverse connecting bar being offset at its point of connection past the perpendicular through the center of gravity of said cylindrical member on said load-bearing cradle; B. an unloading member, extending from said unloading station into the path of said load-bearing cradles, but out of contact with said receiving arms, past the perpendicular through said center of gravity, but short of rubbing contact with said transverse connecting bar, 1. said unloading member being inclined toward said unloading station, so as to contact the bottom surface of the side of said cylindrical member, to separate said cylindrical member from said cradle, and to gravitationally discharge said cylindrical member down said inclined unloading member to said unloading station; and C. the further combination therewith of a vertically oriented guide rod mounted behind said free swinging load bearing cradles and acting to prevent tipping of cylindrical members out of said cradles.
Claim 3
Dependent Claim
28 words
An elevator system, as defined in claim 1, in which said unloading member is vertically movable so as to selectively unload said cradles at a specified vertical level.
Claim 4
Dependent Claim
54 words
a transverse connecting bar connected to said receiving arms at a point past the perpendicular through the center of gravity of said cylindrical member; and B. the further combination therewith of a vertically oriented guide rod mounted behind said load-bearing cradle and acting to prevent tipping of a cylindrical member out of said cradle.
Claim 5
Dependent Claim
54 words
a transverse connecting bar connected to said receiving arms at a point past the perpendicular through the center of gravity of said cylindrical member; and B. the further combination therewith of a vertically oriented guide rod mounted behind said load-bearing cradle and acting to prevent tipping of a cylindrical member out of said cradle.
Claim 6
Dependent Claim
33 words
An elevator system, as defined in claim 1, in which said unloading member is vertically moveable from one unloading station to another so as to selectively unload said cradles at a specified station.
Claim 7
Dependent Claim
35 words
An elevator system, as defined in claim 1, the further combination therewith of anchoring means for said unloading member whereby said unloading member may be detachably anchored at a selected level of said unloading station.
Claim 8
Dependent Claim
21 words
An elevator system, as defined in claim 1, in which said unloading member extends between said receiving arms of said cradle.
Claim 9
Dependent Claim
51 words
For use with an inclined unloading member, extending from an unloading station to the downward path of travel of a cylindrical member supported on its side on the unloading side of an elevator system: A. the improvement comprising a load bearing cradle suspended from a vertically oriented endless conveyor which includes:
Claim 10
Dependent Claim
51 words
For use with an inclined unloading member, extending from an unloading station to the downward path of travel of a cylindrical member supported on its side on the unloading side of an elevator system: A. the improvement comprising a load bearing cradle suspended from a vertically oriented endless conveyor which includes:
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |