US4090309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter drying apparatus
Assignee: Individual
•
Filing: 1977-01-12
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Granted: 1978-05-23
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Expires: 1997-01-12
Abstract
Abstract A filter drying apparatus for cylindrical-type filter units having a frame and an adjustable means for rotating the filter unit at regulated set speeds, the area in which the filter is rotated being surrounded by a casing. Within the casing, adjacent the bottom thereof, is a freely rotatable lower cone-shaped member for supporting one end of the filter, and directly above the lower cone is a similar vertically adjustable cone-shaped member connected with the filter rotating means. These cone-shaped members are adapted to engage the filter unit, one at each end thereof, the cones being tapered at an angle of approximately 60°, and constructed of a semi-elastic material such as rubber, or a suitable plastic composition. Both cone members are tapered outwardly and downwardly from their tops, the lower cone member engaging the inner edge of the filter unit, and the upper cone member engaging the outer edge of the opposite end of the filter unit to rotate the same.
Inventors
- 👤 James E. Rollins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:18
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
251 words
A centrifugal drying apparatus for spinning cylindrical filter units for dispensing moisture therefrom, comprising in combination: a. a base; b. a frame supported upwardly from the said base and comprising at least two spaced vertical standards; c. a cross bar extending substantially horizontally between the spaced frame members having means at each end thereof for slideably engaging the said standards; d. said frame extending upwardly and terminating in a substantially horizontal plane above the plane of the cross bar; e. means for adjustably supporting the cross bar at predetermined levels along the frame members comprising a movable cable having one end thereof fixed centrally of the cross bar; f. the opposite end of the said cable extending upwardly and over one or more pully means to a point adjacent one side of the apparatus, said opposite end of said cable having means for moving said cable in opposite directions, and means for temporarily locking said cable at selected positions; g. means fixed substantially centrally of said cross bar for spinning and supporting an upper cone member, said cone member being formed in an outwardly and downwardly direction adapted to engage the outer rim of the cylindrical filter unit; h. a lower cone shaped member positioned adjacent the base extending downwardly and outwardly and in alignment with the said upper cone element adapted to receive the opposite end of the cylindrical filter unit and a casing extending outwardly from the said cones and completely about the area between the two cone members.
Claim 2
Dependent Claim
251 words
A centrifugal drying apparatus for spinning cylindrical filter units for dispensing moisture therefrom, comprising in combination: a. a base; b. a frame supported upwardly from the said base and comprising at least two spaced vertical standards; c. a cross bar extending substantially horizontally between the spaced frame members having means at each end thereof for slideably engaging the said standards; d. said frame extending upwardly and terminating in a substantially horizontal plane above the plane of the cross bar; e. means for adjustably supporting the cross bar at predetermined levels along the frame members comprising a movable cable having one end thereof fixed centrally of the cross bar; f. the opposite end of the said cable extending upwardly and over one or more pully means to a point adjacent one side of the apparatus, said opposite end of said cable having means for moving said cable in opposite directions, and means for temporarily locking said cable at selected positions; g. means fixed substantially centrally of said cross bar for spinning and supporting an upper cone member, said cone member being formed in an outwardly and downwardly direction adapted to engage the outer rim of the cylindrical filter unit; h. a lower cone shaped member positioned adjacent the base extending downwardly and outwardly and in alignment with the said upper cone element adapted to receive the opposite end of the cylindrical filter unit and a casing extending outwardly from the said cones and completely about the area between the two cone members.
Claim 3
Dependent Claim
19 words
In a centrifugal drier as claimed in claim 1 wherein the cone-shaped elements are constructed of a semi-elastic material.
Claim 4
Dependent Claim
30 words
In a centrifugal drier as claimed in claim 1 wherein the cone-shaped filter engaging elements are tapered outwardly and downwardly from their upper ends at an angle of approximately 60°.
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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |