US3757956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin basket strainer
Assignee: SP Kinney Engineers Inc
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Filing: 1972-03-09
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Granted: 1973-09-11
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Expires: 1992-03-09
Abstract
Abstract A twin basket strainer for industrial use has two baskets through which water to be strained is alternately passed so that one basket may be cleaned while the other is in use. Each basket is in a separate chamber, each chamber having an inlet port and an outlet port. A shaft supported in the body of the structure has a handle outside the body, and inside the body it has a valve disk near each end so arranged that when the shaft is rocked through a few degrees of arc the valve disks move from a position over the inlet and outlet ports of one chamber to a position clear of said ports but closing the corresponding ports of the other chamber.
Inventors
- 👤 N Bradel
- 👤 H Hormel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:31
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
495 words
A twin basket strainer comprising: a. a generally hollow body having opposed ends and having two spaced transverse interior walls spaced from the ends providing within the body a central portion between said two walls and an inlet chamber between one of said transverse walls and one end and an outlet chamber between the other of said transverse walls and the other end, b. the body having an inlet pipe connection at the inlet end opening into the inlet chamber and an outlet pipe connection at the other end aligned with the inlet pipe connection for discharge of strained liquid from the outlet chamber, c. a lengthwise-extending vertical partition in the central portion extending between said two transverse partitions dividing the central portion into two separate spaces, d. internal partition means in each of said spaces having an opening therein with a removable basket strainer having its upper end seated in said opening, said means being arranged to direct liquid entering said space into the top of the basket strainer, said basket strainer extending perpendicularly to a center line from the inlet pipe connection to the outlet pipe connection with the two strainers being in side-by-side relation, e. said internal partition means also forming enclosures spaced from but enclosing their respective basket strainers, f. the transverse partition between the inlet chamber and the central portion having two ports therethrough positioned sideby-side at a level near the level of the tops of the baskets, one of which leads from the inlet chambeR into one of said spaces and the other into the other of said spaces, said other transverse partition having two ports therethrough similarly positioned at the same level and aligned with said previouslymentioned two ports, one connecting one of said basket enclosures with the outlet chamber and one leading from the other of said basket enclosures into said outlet chamber, g. a rock shaft in the upper portion of said central portion at the top of the lengthwise-extending partition at a level above the tops of the removable baskets having one end supported in one end of the body and having its other end passing through the other end of the body and projecting therefrom above one of said pipe connections, the projecting end of said shaft having an operating lever fixed thereto, and h. a valve disk on said shaft in the inlet chamber confronting the transverse partition between the inlet chamber and the central portion selectively movable by rotation of the shaft between a position where it covers only one or the other of the two ports in said partition and another valve disk on said shaft in the discharge chamber confronting the transverse partition between the discharge chamber and the central portion arranged to move with the rotation of the shaft in a manner to remain in alignment with said first valve disk so that both disks close the inlet and outlet ports for the same basket at the same time.
Claim 2
Dependent Claim
495 words
A twin basket strainer comprising: a. a generally hollow body having opposed ends and having two spaced transverse interior walls spaced from the ends providing within the body a central portion between said two walls and an inlet chamber between one of said transverse walls and one end and an outlet chamber between the other of said transverse walls and the other end, b. the body having an inlet pipe connection at the inlet end opening into the inlet chamber and an outlet pipe connection at the other end aligned with the inlet pipe connection for discharge of strained liquid from the outlet chamber, c. a lengthwise-extending vertical partition in the central portion extending between said two transverse partitions dividing the central portion into two separate spaces, d. internal partition means in each of said spaces having an opening therein with a removable basket strainer having its upper end seated in said opening, said means being arranged to direct liquid entering said space into the top of the basket strainer, said basket strainer extending perpendicularly to a center line from the inlet pipe connection to the outlet pipe connection with the two strainers being in side-by-side relation, e. said internal partition means also forming enclosures spaced from but enclosing their respective basket strainers, f. the transverse partition between the inlet chamber and the central portion having two ports therethrough positioned sideby-side at a level near the level of the tops of the baskets, one of which leads from the inlet chambeR into one of said spaces and the other into the other of said spaces, said other transverse partition having two ports therethrough similarly positioned at the same level and aligned with said previouslymentioned two ports, one connecting one of said basket enclosures with the outlet chamber and one leading from the other of said basket enclosures into said outlet chamber, g. a rock shaft in the upper portion of said central portion at the top of the lengthwise-extending partition at a level above the tops of the removable baskets having one end supported in one end of the body and having its other end passing through the other end of the body and projecting therefrom above one of said pipe connections, the projecting end of said shaft having an operating lever fixed thereto, and h. a valve disk on said shaft in the inlet chamber confronting the transverse partition between the inlet chamber and the central portion selectively movable by rotation of the shaft between a position where it covers only one or the other of the two ports in said partition and another valve disk on said shaft in the discharge chamber confronting the transverse partition between the discharge chamber and the central portion arranged to move with the rotation of the shaft in a manner to remain in alignment with said first valve disk so that both disks close the inlet and outlet ports for the same basket at the same time.
Claim 3
Dependent Claim
43 words
A twin basket strainer as defined in claim 1 wherein there is a means for connecting each of said valve disks to the shaft providing a limited free rotation of the shaft before turning motion thereof is transmitted to the respective valve disks.
Claim 4
Dependent Claim
87 words
A twin basket strainer as defined in claim 1 in which the connection between the operating means for the shaft and the valve disks carried on the shaft provides limited lost motion between the operating means and the valve disks so arranged that initial motion of the operating means can impart an impact to jar the respective valve disks loose and initiate the movement of the valves from over the inlet and outlet ports for one chamber to position over the said ports of the other chamber.
Claim 5
Dependent Claim
58 words
A twin basket strainer as defined in claim 1 in which the valve disks are movable relatively to the shaft in a direction normal to the plane of the ports which they cover and uncover, and there are cooperating camming means on the respective valve disks for forcing them toward the ports as they move to port-closing position.
Claim 6
Dependent Claim
38 words
A twin basket strainer as defined in claim 4 in which there are other camming means on the respective valves for forcing them away from the ports which they cover and uncover as they move to port-opening position.
Claim 7
Dependent Claim
263 words
A twin basket strainer as defined in claim 1 in which each valve disk has an eccentrically positioned boss thereon through which the shaft passes by which each valve disk is rotatably and slidably hung from the shaft, each said boss having a notch therein, the shaft having a separate sleeve fixed thereon adjacent each valve and confronting the boss of that valve to which it is adjacent and confining said valve disk to limited endwise movement on the shaft in a direction normal to the transverse partition with which the disk is associated, each such sleeve having a lug thereon loosely engaged in the notch of that boss which it confronts and by which turning motion of the shaft is transmitted to the valve disk with the loose fit providing limited lost motion between the shaft and the valve disk, there being a pair of separated recesses in each of said transverse partition, the disk valves each having a projecting lug thereon which enters one recess when the valve disk is over one port and the other recess when it is over the other port and from which it is disengaged by movement of the valve disk in a normal direction away from the confronting partition when the valve disk is operated to open a port in said partition, and cooperating means on each valve disk and a portion of its strainer body for Camming the respective disks in a direction normal to the confronting partition into tight sealing engagement with their respective ports as the disks are moved to port-closing position.
Claim 8
Dependent Claim
128 words
A twin basket strainer as defined in claim 1 in which each strainer basket has an outlet tube at the bottom thereof and each basket chamber has a drain port at the bottom thereof in the outlet compartment with a valve-controlled drain pipe connected to said port, said outlet tube terminating in said outlet port, each basket chamber having valve-controlled means for supplying back-flushing water to the outlet compartment thereof, the arrangement being such that when the inlet and outlet ports for that basket chamber are closed, said valve in the drain pipe may be opened and the valve for admitting the back-flushing water opened and water may flow from around the outside of the strainer basket to the interior of the basket and out said drain pipe.
Claim 9
Dependent Claim
333 words
A twin basket strainer comprising: a. a composite body structure having an inlet end wall and an outlet end wall, the body having first and second transverse partitions therein providing an inlet portion at the inlet end between the first transverse partition and the end wall at the inlet end of the body and an outlet portion between said second transverse partition and the outlet end wall of the body, b. the body having a longitudinal partition therein extending between the two transverse partitions dividing the interior of the mid portion of the body into two basket chambers side by side, c. each basket chamber being constructed to provide an inlet compartment and an outlet compartment, d. a removable basket strainer in each chamber with the chamber being so formed that liquid must flow from the inlet compartment above the tops of the baskets downwardly through the top of each basket strainer to the outlet compartment, e. the first transverse partition having two ports therein positioned side by side, one opening into the inlet compartment of each chamber and the second transverse partition having two ports therein aligned with the ports in the first with each of said ports leading from one of the outlet compartments to the outlet end portion of the body, f. a rock shaft mounted in the body extending above the top of the longitudinal partition above the level of the baskets from one end of the body to the other and projecting at one end through one end of the composite body, the projecting end having operating means thereon, g. the shaft having two valve elements thereon and connected thereto for arcuate movement therewith, one valve element being inside said inlet portion for movement over one or the other of said ports in the first transverse partition and the other valve element is aligned on the shaft with the first and positioned to be moved over one or the other of said ports in the second transverse partition.
Claim 10
Dependent Claim
333 words
A twin basket strainer comprising: a. a composite body structure having an inlet end wall and an outlet end wall, the body having first and second transverse partitions therein providing an inlet portion at the inlet end between the first transverse partition and the end wall at the inlet end of the body and an outlet portion between said second transverse partition and the outlet end wall of the body, b. the body having a longitudinal partition therein extending between the two transverse partitions dividing the interior of the mid portion of the body into two basket chambers side by side, c. each basket chamber being constructed to provide an inlet compartment and an outlet compartment, d. a removable basket strainer in each chamber with the chamber being so formed that liquid must flow from the inlet compartment above the tops of the baskets downwardly through the top of each basket strainer to the outlet compartment, e. the first transverse partition having two ports therein positioned side by side, one opening into the inlet compartment of each chamber and the second transverse partition having two ports therein aligned with the ports in the first with each of said ports leading from one of the outlet compartments to the outlet end portion of the body, f. a rock shaft mounted in the body extending above the top of the longitudinal partition above the level of the baskets from one end of the body to the other and projecting at one end through one end of the composite body, the projecting end having operating means thereon, g. the shaft having two valve elements thereon and connected thereto for arcuate movement therewith, one valve element being inside said inlet portion for movement over one or the other of said ports in the first transverse partition and the other valve element is aligned on the shaft with the first and positioned to be moved over one or the other of said ports in the second transverse partition.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |