Patent US3578170A successfully refreshed from Google Patents.
US3578170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting inclination of filter plates in transit
Assignee: KURITA KEN I
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Filing: 1970-01-12
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Granted: 1971-05-11
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Expires: 1990-01-12
Abstract
Abstract A prevention apparatus is for use in a filter press provided with a group of filtering elements supported between a stationary end plate and a movable end plate and adapted to be released horizontally for the removal of cake or to be compressed together for filtration. Disposed at least along one side of the group of filtering elements is a detecting line employing a light beam, lead wire or wire rope which has linearity in parallel with the direction of movement of the filtering elements. A blocking member is mounted on each of the filtering elements in corresponding relationship with the detecting line. When the filtering element is inclined due to some trouble during transit, the detecting line is interfered with by the blocking member to halt the transport of the filtering elements or give a warning.
Inventors
- 👤 Ken-Ichiro Kurita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:27
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; B01D25/00; B01D25/12; B01D25/127; B01D25/172
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
157 words
In a filter press provided with a group of filtering elements having a support means on each side thereof between a stationary end plate and a movable end plate adapted to be moved horizontally, the group of said filtering elements being provided with transport means for releasing said filtering elements by a predetermined space and adapted to press filter cloth adjacent to each of said filtering elements when compressed by a movable end plate for filtering operation, an apparatus for detecting inclination of filter plates in transit comprising detecting means disposed at least at one side of a group of filtering elements and provided with linearity parallel to the direction of movement of said filtering elements and blocking means mounted on each of said filtering elements in corresponding relationship with said detecting means, said blocking means being adapted to be detected by said detecting means when at least one of said filtering elements is inclined during transit.
Claim 2
Dependent Claim
157 words
In a filter press provided with a group of filtering elements having a support means on each side thereof between a stationary end plate and a movable end plate adapted to be moved horizontally, the group of said filtering elements being provided with transport means for releasing said filtering elements by a predetermined space and adapted to press filter cloth adjacent to each of said filtering elements when compressed by a movable end plate for filtering operation, an apparatus for detecting inclination of filter plates in transit comprising detecting means disposed at least at one side of a group of filtering elements and provided with linearity parallel to the direction of movement of said filtering elements and blocking means mounted on each of said filtering elements in corresponding relationship with said detecting means, said blocking means being adapted to be detected by said detecting means when at least one of said filtering elements is inclined during transit.
Claim 3
Dependent Claim
77 words
The apparatus for detecting inclination of filter plates in transit as claimed in claim 1 wherein said detecting means comprises a projector and a light receiver disposed on stationary members of the filter press and a light intercepting plate serving as said blocking means is adjustably mounted on a side portion of each of said filtering elements, said light intercepting plate being positioned in parallel with the path of light between said projector and said light receiver.
Claim 4
Dependent Claim
63 words
The apparatus for detecting inclination of filter plates in transit as claimed in claim 1 wherein said detecting means comprises an electrical lead wire extending between stationary members of the filter press and two contact plates serving as said blocking means are mounted on a side portion of each of said filtering elements, said lead wire being passed between said two contact plates.
Claim 5
Dependent Claim
84 words
The apparatus for detecting inclination of filter plates in transit as claimed in claim 1 wherein said detecting means comprises a wire rope extending between stationary members of the filter press and loaded with a spring at one end thereof, the spring-loaded end of said wire rope being provided with a projection for actuating a limit switch, two contact plates seRving as said blocking means and being mounted on a side portion of each of said filtering elements to pass said lead wire therebetween.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |