Patent US3612307A successfully refreshed from Google Patents.
US3612307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder and liner assembly therefor
Assignee: Individual
•
Filing: 1969-01-28
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Granted: 1971-10-12
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Expires: 1989-01-28
Abstract
Abstract This disclosure relates to a rotary feeder of the pressure differential type which includes a housing having a cylindrical cavity therein with an inlet and an outlet opening thereinto, a rotor mounted within the cavity for rotation relative to the housing, and a fixed stator telescoped within the rotor and supported by the housing. The rotor is provided with a plurality of circumferentially adjacent pockets in which liners are positioned. The liners are separately formed and then bonded together in situ to form a continuous liner assembly having exposed surfaces engageable with the housing to form a seal therewith between the inlet and the outlet. The stator is in the form of a valve, which is preferably formed of a stable plastic and which controls the flow of gases into and out of the pockets as the rotor rotates.
Inventors
- 👤 Clarence W Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:24
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/46; B65G53/4608; B65G53/4625; B65G53/4633
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
73 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, each pocket being defined by an encircling peripheral surface portion of said rotor, each liner having associated therewith a peripheral flange, and means clamping said peripheral flange against said rotor peripheral surface.
Claim 2
Dependent Claim
73 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, each pocket being defined by an encircling peripheral surface portion of said rotor, each liner having associated therewith a peripheral flange, and means clamping said peripheral flange against said rotor peripheral surface.
Claim 3
Dependent Claim
32 words
The rotor assembly of claim 1 wherein each liner is separately formed and said peripheral flange is formed integrally with each liner, and adjacent peripheral flanges of adjacent liners are bonded together.
Claim 4
Dependent Claim
34 words
The rotor assembly of claim 1 wherein each liner is separately formed and peripheral flanges of said liners are defined by circumferential and axial strips separately bonded to peripheral edge portions of said liners.
Claim 5
Dependent Claim
49 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, said liners being separately formed and welded together.
Claim 6
Dependent Claim
49 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, said liners being separately formed and welded together.
Claim 7
Dependent Claim
67 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, said interconnected liners having bonded together flanges defining a continuous sealing surface for sealing the peripheral surface of said rotor assembly relative to a supporting housing.
Claim 8
Dependent Claim
67 words
A rotor assembly for a feeder of the pressure differential type comprising a rotor having a plurality of radially opening and circumferentially adjacent pockets, and a porous liner in each pocket, said liners being continuously interconnected in a generally cylindrical form, said interconnected liners having bonded together flanges defining a continuous sealing surface for sealing the peripheral surface of said rotor assembly relative to a supporting housing.
Claim 9
Dependent Claim
23 words
The rotor assembly of claim 5 wherein said liners are formed of a plastic material having good slip characteristics relative to metal surfaces.
Claim 10
Dependent Claim
154 words
A feeder of the pressure differential type comprising a housing having a generally cylindrical chamber and circumferentially spaced inlet and outlet opening into said chamber, a hollow rotor positioned in said chamber and being mounted for rotation relative to said housing, said rotor having a plurality of radially outwardly opening and circumferentially adjacent pockets adapted to be sequentially presented to said inlet and said outlet, a porous liner seated in each pocket for freely passing gases therEthrough while retaining material to be transferred therein, said liners being continuously interconnected and having radially outermost peripheral surface portions forming seals with said housing between said inlet and said outlet, other sealing means forming seals between the ends of said rotor and said housing, and a stator fixedly carried by said housing and telescoped within said rotor in sealed relation, said stator being in the form of a valve for selectively varying the pressure within said pockets.
Claim 11
Dependent Claim
154 words
A feeder of the pressure differential type comprising a housing having a generally cylindrical chamber and circumferentially spaced inlet and outlet opening into said chamber, a hollow rotor positioned in said chamber and being mounted for rotation relative to said housing, said rotor having a plurality of radially outwardly opening and circumferentially adjacent pockets adapted to be sequentially presented to said inlet and said outlet, a porous liner seated in each pocket for freely passing gases therEthrough while retaining material to be transferred therein, said liners being continuously interconnected and having radially outermost peripheral surface portions forming seals with said housing between said inlet and said outlet, other sealing means forming seals between the ends of said rotor and said housing, and a stator fixedly carried by said housing and telescoped within said rotor in sealed relation, said stator being in the form of a valve for selectively varying the pressure within said pockets.
Claim 12
Dependent Claim
18 words
The feeder of claim 7 wherein said liners are separately formed and bonded in situ about said rotor.
Claim 13
Dependent Claim
37 words
The feeder of claim 8 wherein said other sealing means include fixed continuous sealing members carried by said housing at opposite ends of said chamber, said sealing members being in compressed engagement with ends of said rotor.
Claim 14
Dependent Claim
25 words
The feeder of claim 8 wherein said stator is formed of a stable plastic material, and said rotor having an inner sleeve contacting said stator.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |