US3874641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitator assembly for a discharge hopper
Assignee: Individual
•
Filing: 1973-08-15
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Granted: 1975-04-01
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Expires: 1993-08-15
Abstract
Abstract An agitator assembly for use with a discharge hopper, in which a pair of agitator members are suspended from a movable support member so as to be positioned adjacent opposite hopper wall portions, said movable support member being attached to a fixed support member by a pair of pneumatic bellows disposed at opposite ends thereof, and control means is provided for actuating said bellows alternately, whereby said agitator members are raised and lowered alternately.
Inventors
- 👤 Peter J Tolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:32
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7173; B01F35/71731; B01F35/79
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
49 words
An agitating device for use with a discharge hopper of the type having side walls and a discharge opening, said device comprising a support and an agitator member secured to the support by a pair of spaced fluid extensible means, and means for actuating said fluid extensible means alternately.
Claim 2
Dependent Claim
49 words
An agitating device for use with a discharge hopper of the type having side walls and a discharge opening, said device comprising a support and an agitator member secured to the support by a pair of spaced fluid extensible means, and means for actuating said fluid extensible means alternately.
Claim 3
Dependent Claim
76 words
An agitating device for use with a discharge hopper of the type having side walls and a discharge opening, said device comprising a support and at least one agitator member depending from the support, said support comprising a fixed portion and a movable portion connected by a pair of spaced pneumatic extensible means, and means for actuating said pneumatically extensible means alternately so that a rocking motion is imparted to the movable portion of the support.
Claim 4
Dependent Claim
76 words
An agitating device for use with a discharge hopper of the type having side walls and a discharge opening, said device comprising a support and at least one agitator member depending from the support, said support comprising a fixed portion and a movable portion connected by a pair of spaced pneumatic extensible means, and means for actuating said pneumatically extensible means alternately so that a rocking motion is imparted to the movable portion of the support.
Claim 5
Dependent Claim
79 words
An agitator device for use with a discharge hopper of the type having inclined walls leading to a discharge opening, said device comprising a fixed support member dimensioned to span the hopper and be supported thereby, a movable support disposed above the fixed support and connected thereto by a pair of fluid extensible bellows, a pair of agitator members depending from the movable support, and means for alternately actuating said bellows to cause them to extend and retract alternately.
Claim 6
Dependent Claim
79 words
An agitator device for use with a discharge hopper of the type having inclined walls leading to a discharge opening, said device comprising a fixed support member dimensioned to span the hopper and be supported thereby, a movable support disposed above the fixed support and connected thereto by a pair of fluid extensible bellows, a pair of agitator members depending from the movable support, and means for alternately actuating said bellows to cause them to extend and retract alternately.
Claim 7
Dependent Claim
50 words
A discharge hopper, comprising a hopper body having side walls leading to a discharge opening and at least one agitator plate disposed in said hopper, and means for oscillating said plate in said hopper, said means comprising fluid actuated extensible means connected between the agitator plate and a fixed member.
Claim 8
Dependent Claim
50 words
A discharge hopper, comprising a hopper body having side walls leading to a discharge opening and at least one agitator plate disposed in said hopper, and means for oscillating said plate in said hopper, said means comprising fluid actuated extensible means connected between the agitator plate and a fixed member.
Claim 9
Dependent Claim
49 words
A discharge hopper as set out in claim 4 in which a pair of agitator plates are provided in the hopper in spaced relation to each other above the discharge opening, and a pneumatic bellows is associated with each plate, and means is provided for actuating said bellows alternately.
Claim 10
Dependent Claim
40 words
A discharge hopper as set out in claim 5 in which said plates are suspended from opposite ends of a movable support bar, and said pneumatic bellows are connected between the fixed member and opposite ends of said support bar.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |