Patent US4448221A successfully refreshed from Google Patents.
US4448221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying apparatus for cleaning filter plates
Assignee: Passavant Corp
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Filing: 1982-06-17
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Granted: 1984-05-15
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Expires: 2002-06-17
Abstract
Abstract Spraying apparatus for cleaning filter plates embodies a support frame which is mounted for movement beneath the filter plates and is adapted to align with each space formed between adjacent filter plates to be cleaned. A spraying unit is mounted for pivotal movement on the support frame selectively to a lowered position beneath the filter plates and to a raised position extending upwardly into the space between adjacent filter plates. A spray dispenser carried by the spraying unit moves within the space to apply spray to the adjacent vertical surfaces of the filter plates being cleaned.
Inventors
- 👤 James D. Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:38
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B01; B01D; B01D25/00; B01D25/12; B01D25/164; B01D25/172; B01D25/32; B01D25/38; B01D25/386; B05B13/00; B05B13/02; B05B13/04; B05B13/0405; B05B13/0447; B05B1/00; B05B1/14; B05B1/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
281 words
Spraying apparatus for cleaning filter plates of a filter press wherein said plates are adapted for separation along longitudinally extending horizontal guides to define a space between adjacent filter plates, (a) a support frame mounted for longitudinal movement beneath said filter press and adapted for alignment with said space defined between adjacent filter plates to be cleaned, (b) an elongated arm pivotally connected at one end to said support frame for pivotal movement thereon selectively to a first position beneath said filter plates to permit free longitudinal travel of said support frame beneath said filter press and to a second position with said elongated arm in alignment with and extending into said space so that upon movement of said elongated arm to said second position the other end thereof extends inwardly of said space toward the mid portions of said adjacent filter plates, (c) a fluid supply conduit carried by said elongated arm and having an inlet adjacent said one end of said elongated arm connected to means supplying a cleaning fluid under pressure and having an outlet adjacent said other end thereof, (d) an elongated spray dispenser mounted for rotation at one end to said other end of said elongated arm and adapted to rotate at least 360° within said space upon movement of said elongated arm to said second position, with said dispenser being rotatable in at least one direction to apply spray over the vertical surfaces of said adjacent filter plates being cleaned, (e) actuator means carried by said support frame for pivoting said elongated arm to said first and said second positions, and (f) means carried by said elongated arm for imparting rotation to said spray dispenser.
Claim 2
Dependent Claim
281 words
Spraying apparatus for cleaning filter plates of a filter press wherein said plates are adapted for separation along longitudinally extending horizontal guides to define a space between adjacent filter plates, (a) a support frame mounted for longitudinal movement beneath said filter press and adapted for alignment with said space defined between adjacent filter plates to be cleaned, (b) an elongated arm pivotally connected at one end to said support frame for pivotal movement thereon selectively to a first position beneath said filter plates to permit free longitudinal travel of said support frame beneath said filter press and to a second position with said elongated arm in alignment with and extending into said space so that upon movement of said elongated arm to said second position the other end thereof extends inwardly of said space toward the mid portions of said adjacent filter plates, (c) a fluid supply conduit carried by said elongated arm and having an inlet adjacent said one end of said elongated arm connected to means supplying a cleaning fluid under pressure and having an outlet adjacent said other end thereof, (d) an elongated spray dispenser mounted for rotation at one end to said other end of said elongated arm and adapted to rotate at least 360° within said space upon movement of said elongated arm to said second position, with said dispenser being rotatable in at least one direction to apply spray over the vertical surfaces of said adjacent filter plates being cleaned, (e) actuator means carried by said support frame for pivoting said elongated arm to said first and said second positions, and (f) means carried by said elongated arm for imparting rotation to said spray dispenser.
Claim 3
Dependent Claim
118 words
Spraying apparatus for cleaning filter plates as defined in claim 1 in which said spray dispenser comprises, (a) a fluid-tight housing carried by said other end of said elongated arm and having a cavity therein in communcation with said outlet of said fluid supply conduit, (b) a rotatable conduit extending through said housing in communication with said cavity and adapted for rotation relative to said housing with a fluid-tight fit and operatively connected to said means imparting rotation to said spray dispenser, and (c) a spray manifold carried by each end of said rotatable conduit and having spaced apart, laterally disposed spray nozzles along one side thereof directed toward the vertical surface of the filter plate adjacent thereto.
Claim 4
Dependent Claim
42 words
Spraying apparatus for cleaning filter plates as defined in claim 1 in which said spray dispenser is rotatable in said space in said one direction and in a reverse direction to apply spray over said vertical surfaces of said adjacent filter plates.
Claim 5
Dependent Claim
30 words
Spraying apparatus for cleaning filter plates of a filter press wherein said plates are adapted for separation along longitudinally extending horizontal guides to define a space between adjacent filter plates,
Claim 6
Dependent Claim
30 words
Spraying apparatus for cleaning filter plates of a filter press wherein said plates are adapted for separation along longitudinally extending horizontal guides to define a space between adjacent filter plates,
Claim 7
Dependent Claim
239 words
1(a) a support frame mounted for longitudinal movement beneath said filter press and adapted for alignment with said space defined between adjacent filter plates to be cleaned, (b) an elongated spray dispenser carried by a fluid-tight housing and mounted for pivotal movement on said support frame selectively to a first position beneath said filter plates to permit free longitudinal travel of said support frame beneath said filter press and to a second position with said spray dispenser in alignment with and extending vertically into said space between said adjacent filter plates in position to apply spray over the vertical surfaces of said adjacent filter plates being cleaned, (c) means connected to said spray dispenser for supplying a cleaning fluid under pressure thereto upon pivotal movement of said spray dispenser to said second position, (d) actuator means operatively connected to said spray dispenser for imparting pivotal movement thereto, (e) said fluid-tight housing having a cavity therein in communication with said means supplying said cleaning fluid under pressure to said spray dispenser, (f) a rotatable conduit extending through said housing in communication with said cavity and adapted for rotation relative to said housing with a fluidtight fit and operatively connected to said actuator means pivoting said spray dispenser, and (g) at least one spray manifold carried by said rotatable conduit and having spaced apart spray nozzles thereon for applying spray to said vertical surfaces of said adjacent filter plates being cleaned.
Claim 8
Dependent Claim
239 words
1(a) a support frame mounted for longitudinal movement beneath said filter press and adapted for alignment with said space defined between adjacent filter plates to be cleaned, (b) an elongated spray dispenser carried by a fluid-tight housing and mounted for pivotal movement on said support frame selectively to a first position beneath said filter plates to permit free longitudinal travel of said support frame beneath said filter press and to a second position with said spray dispenser in alignment with and extending vertically into said space between said adjacent filter plates in position to apply spray over the vertical surfaces of said adjacent filter plates being cleaned, (c) means connected to said spray dispenser for supplying a cleaning fluid under pressure thereto upon pivotal movement of said spray dispenser to said second position, (d) actuator means operatively connected to said spray dispenser for imparting pivotal movement thereto, (e) said fluid-tight housing having a cavity therein in communication with said means supplying said cleaning fluid under pressure to said spray dispenser, (f) a rotatable conduit extending through said housing in communication with said cavity and adapted for rotation relative to said housing with a fluidtight fit and operatively connected to said actuator means pivoting said spray dispenser, and (g) at least one spray manifold carried by said rotatable conduit and having spaced apart spray nozzles thereon for applying spray to said vertical surfaces of said adjacent filter plates being cleaned.
Claim 9
Dependent Claim
49 words
Spraying apparatus for cleaning filter plates as defined in claim 4 in which a spray manifold is carried by each end of said rotatable conduit with said spaced apart spray nozzles being positioned along one side of each manifold and directed toward the adjacent vertical surface to be cleaned.
Claim 10
Dependent Claim
100 words
Spraying apparatus for cleaning filter plates as defined in claim 1 in which a stop arm is mounted for pivotal movement on said support frame with actuator means carried by said support frame for pivoting said stop arm selectively to a first location in position to engage a filter plate moved away from the stack of filter plates to be cleaned and retain said filter plate at a predetermined distance from its adjacent filter plate to be cleaned and to a second location beneath said filter plates to permit free longitudinal travel of said support frame beneath the filter press.
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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |