Patent US2717103A successfully refreshed from Google Patents.
Patent US3826374A successfully refreshed from Google Patents.
US3826374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus enabling the shifting of groups of filter plates in a filter press
Assignee: Aqseptence Group GmbH
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Filing: 1973-05-24
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Granted: 1974-07-30
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Expires: 1993-05-24
Abstract
Abstract Adjacent filter plates of a filter press are connected by links permitting the plates to close and separate. Some plates have a cam thereon which moves between an operative position and a neutral position, moving to the former position in response to movement of its associated links to a filter plate separated condition. An engaging dog moves along the filter press, engaging an operative cam to move at least one but preferably a group of filter plates to an open, separated condition.
Inventors
- 👤 O Busse
- 👤 H Klesper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:49
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/172
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
184 words
A filter press comprising: a plurality of filter plates mounted in a row for movement in a longitudinal direction towards each other to form filter chambers between adjacent plates and away from each other for removal of the filter residue, at least some of said filter plates have a cam associated therewith and movable between an operative position and a neutral position, an engaging dog mounted to move along the filter press in said longitudinal direction in a path whereIn the dog engages any cam in its path in the operative position and passes by any cam of filter plates which it passes which cam is in the neutral position, connecting means for connecting adjacent filter plates to allow the plates to close against each other and also to separate from each other by a predetermined amount, and means for interconnecting each com with one of the connecting means associated with its respective filter plate so that movement of said one connecting means from said closed position to said separated position causes the cam to move from said neutral position to said operative position.
Claim 2
Dependent Claim
184 words
A filter press comprising: a plurality of filter plates mounted in a row for movement in a longitudinal direction towards each other to form filter chambers between adjacent plates and away from each other for removal of the filter residue, at least some of said filter plates have a cam associated therewith and movable between an operative position and a neutral position, an engaging dog mounted to move along the filter press in said longitudinal direction in a path whereIn the dog engages any cam in its path in the operative position and passes by any cam of filter plates which it passes which cam is in the neutral position, connecting means for connecting adjacent filter plates to allow the plates to close against each other and also to separate from each other by a predetermined amount, and means for interconnecting each com with one of the connecting means associated with its respective filter plate so that movement of said one connecting means from said closed position to said separated position causes the cam to move from said neutral position to said operative position.
Claim 3
Dependent Claim
136 words
A filter press according to claim 1, said connecting means between adjacent filter plates comprising a pair of connecting links pivotally connected together at first ends thereof and operatively connected one to each of the adjacent filter plates at the opposite ends thereof, said connecting links movable about said pivot connection towards each other when the adjacent plates close against each other and movable about said pivot connection away from each other to a more straightened condition when the adjacent plates move apart to the separated condition. 3 A filter press according to claim 2, each cam being operatively connected to one of the connecting links connected to its respective filter plate to move between the operative and the neutral positions in response to movement of that connecting link between the closed and straightened position, respectively.
Claim 4
Dependent Claim
50 words
A filter press according to claim 3, wherein each cam is connected to that connecting link of the two connecting links associated with that plate which turns in a sense or rotation identical with the movement imparted by the engaging dog to the cam upon straightening of the connecting links.
Claim 5
Dependent Claim
43 words
A filter press according to claim 1, said engaging dog being movable alternately in a direction in which the plates are moved for opening and in an opposite direction, said dog including means for overriding the cams when moving in said opposite direction.
Claim 6
Dependent Claim
48 words
A filter press according to claim 1, said filter press including an elongated track means running in said longitudinal direction, carriages mounted on the track means for movement therealong each filter plate being suspended from a carriage, said cams and said connecting means being disposed on said carriages.
Claim 7
Dependent Claim
25 words
A filter press according to claim 6, wherein said engaging dog is movable in a further track means disposed above the said carriage track means.
Claim 8
Dependent Claim
86 words
A filter press according to claim 6, said connecting means between adjacent filter plates comprising a pair of connecting links pivotally connected together at first ends thereof and operatively connected, one to each of the adjacent plates at the opposite ends thereof, said links being movable about said pivot connection towards each other when the adjacent plates close against each other and movable about said pivot connection away from each other to a more straightened condition when the adjacent plates move apart to said separated condition.
Claim 9
Dependent Claim
55 words
A filter press according to claim 8, each said connecting link consisting of a set of two fixedly connected link arms located symetrically one on each side of the vertical median plane of the filter press extending in the longitudinal direction for maintaining the carriages in a position extending perpendicular to the said longitudinal direction.
Claim 10
Dependent Claim
76 words
A filter press according to claim 9, wherein the connecting links of each pair are pivotally connected to a common axle at the said first ends, and at their said opposite ends the said connecting links are pivotally connected to main axles of the adjacent filter plates, the carriage of each adjacent filter plate also being mounted on its respective main axle, and including rollers also on said main axles engaging the said elongated track means.
Claim 11
Dependent Claim
36 words
A filter press according to claim 10, including a hub fixedly interconnecting one set of link arms at each main axle, said cam associated with The filter plate of that axle being mounted on said hub.
Claim 12
Dependent Claim
40 words
A filter press according to claim 1, the filter plates being arranged such that for each run of the engaging dog along the filter press in the opening direction, a plurality of said filter plates are separated from each other.
Claim 13
Dependent Claim
61 words
A filter press according to claim 12, wherein the frontmost filter plate in the opening direction is operatively connected with a hydraulically operated head piece of the filter press, the displacement of said head piece from the closed position of the filter press determining the number of filter plates simultaneously separated by movement of the engaging dog in said opening direction.
Claim 14
Dependent Claim
30 words
A filter press according to claim 1, including means for reversing the movement of the engaging dog in dependence on the resistance offered by the said cam which it engages.
Claim 15
Dependent Claim
56 words
A filter press according to claim 1, including a switch means for stopping the opening of the press and starting the closing movement of the plates in dependence on the position of the engaging dog at the moment of reversal of the engaging dog from movement in the opening direction to movement in the closing direction.
Claim 16
Dependent Claim
18 words
A filter press according to claim 1, in which the connection of the connection means is easily detachable.
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |