Patent US3590956A successfully refreshed from Google Patents.
US3590956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crossover valve for lubricant distributor
Assignee: Lubriquip Inc
•
Filing: 1969-04-09
•
Granted: 1971-07-06
•
Expires: 1989-04-09
Abstract
Abstract A lubricant distributor for receiving lubricant under pressure from a source and for dividing, metering and directing the lubricant to a plurality of points of use. The lubricant distributor includes a plurality of cylinder piston units in which the pistons are moved reciprocally back and forth by the pressurized lubricant Pairs of outlets corresponding in number to the number of cylinder piston units communicate with the opposite end of the cylinder and serve to discharge lubricant alternately therefrom as the pistons are moved back and forth. Passages are formed in the distributor for cross-connecting the two outlets associated with each cylinder piston unit and a selector valve is associated with each cross connection passage to block or unblock flow therethrough. Each selector valve is carried in a corresponding bore in the distributor for rotation only, and is restrained against axial movement.
Inventors
- 👤 Ronald F Obergefell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:02
CPC Classifications
F; F16; F16N; F16N25/00; F16N25/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
270 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said pistoncylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluid inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, and valve means for blocking and unblocking flow through said cross connection passage comprising means forming a cylindrical bore communicating with said cross connection passage, a cylindrical valve rotatably carried in said bore and having means forming an axially transverse flow passage for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, said valve comprising first and second axially adjacent portions one of which is made of resilient material and extends into said cross connection passage and the other of which is made of metal, said first and second axially adjacent portions being bonded together for joint rotation with one another, means for restraining said valve against axial movement in said bore, and said housing including an outer wall and said cylindrical bore having an outer end which opens to said outer wall, whereby said valve is accessible externally of said housing.
Claim 2
Dependent Claim
270 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said pistoncylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluid inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, and valve means for blocking and unblocking flow through said cross connection passage comprising means forming a cylindrical bore communicating with said cross connection passage, a cylindrical valve rotatably carried in said bore and having means forming an axially transverse flow passage for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, said valve comprising first and second axially adjacent portions one of which is made of resilient material and extends into said cross connection passage and the other of which is made of metal, said first and second axially adjacent portions being bonded together for joint rotation with one another, means for restraining said valve against axial movement in said bore, and said housing including an outer wall and said cylindrical bore having an outer end which opens to said outer wall, whereby said valve is accessible externally of said housing.
Claim 3
Dependent Claim
48 words
The invention as defined in claim 1 and including means forming a circumferentially continuous groove in the wall of said second axially adjacent portion of said valve, and an O-ring disposed in said groove to provide a fluidtight seal axially thereacross between the valve and the bore wall.
Claim 4
Dependent Claim
255 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said piston-cylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluiD inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, valves means the blocking and unblocking flow through said cross connection passage comprising means forming a cylindrical bore communicating with said cross connection passage, a cylindrical valve rotatably carried in said bore and having means forming an axially transverse flow passage for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, and means for restraining said valve against axial movement in said bore, said means comprising means forming axially aligned circumferential slots in the walls of said valve and said bore, a lockring disposed within said grooves for locking said valve axially in place in said bore, and said housing including an outer wall and said cylindrical bore having an outer end which opens to said outer wall, whereby said valve is accessible externally of said housing.
Claim 5
Dependent Claim
255 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said piston-cylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluiD inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, valves means the blocking and unblocking flow through said cross connection passage comprising means forming a cylindrical bore communicating with said cross connection passage, a cylindrical valve rotatably carried in said bore and having means forming an axially transverse flow passage for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, and means for restraining said valve against axial movement in said bore, said means comprising means forming axially aligned circumferential slots in the walls of said valve and said bore, a lockring disposed within said grooves for locking said valve axially in place in said bore, and said housing including an outer wall and said cylindrical bore having an outer end which opens to said outer wall, whereby said valve is accessible externally of said housing.
Claim 6
Dependent Claim
256 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said piston-cylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluid inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, first cylindrical wall means forming a bore in said housing communicating with said cross connection passage, a valve member in said bore having second cylindrical wall means in sliding engagement with said first cylindrical wall means for rotatably journaling said valve member in said bore, means forming an axially transverse flow passage in said valve member for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, and means for restraining said valve member against axial movement in said bore, said housing comprising an outer wall and said bore comprising an outer end which opens to said outer wall whereby said valve member is adjustably accessible externally of said housing, one of said cylindrical wall means being made of resilient material and the other being made of rigid material.
Claim 7
Dependent Claim
256 words
A lubricant distributor comprising a distributor housing having a piston-cylinder unit therein, fluid inlet means in said housing communicating with said piston-cylinder unit and adapted for connection to a source of pressurized lubricant, means forming a pair of lubricant outlets for said piston-cylinder unit, means including fluid passage and port means in said housing constructed and arranged so as to cause movement of said piston back and forth in said cylinder when subjected to pressurized lubricant from said fluid inlet means and to cause lubricant to issue alternately from each of said outlets as said piston moves back and forth, means forming a cross connection passage between said outlets, first cylindrical wall means forming a bore in said housing communicating with said cross connection passage, a valve member in said bore having second cylindrical wall means in sliding engagement with said first cylindrical wall means for rotatably journaling said valve member in said bore, means forming an axially transverse flow passage in said valve member for establishing flow in said cross connection passage when rotated to a first position and for blocking flow in said cross connection passage when rotated to a second position, and means for restraining said valve member against axial movement in said bore, said housing comprising an outer wall and said bore comprising an outer end which opens to said outer wall whereby said valve member is adjustably accessible externally of said housing, one of said cylindrical wall means being made of resilient material and the other being made of rigid material.
Claim 8
Dependent Claim
48 words
The invention as defined in claim 1 wherein the radial wall of the valve facing the outer open end of the bore comprises means forming a diametrical slot therein for receiving a tool such as a screwdriver and for providing an indication of the position of the valve.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |