US3895690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricator assembly with automatic reset
Assignee: Madison Kipp Corp
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Filing: 1974-03-12
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Granted: 1975-07-22
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Expires: 1994-03-12
Abstract
Abstract An automatic lubricator for lubricating the wheels in a conveyor assembly, including automatic safety cut-out and reset device which is activated in the event the lubricator fails to disengage from a moving conveyor. The lubricator includes a carriage rotatably and slidably mounted on an elongated guide rod arranged parallel to the conveyor track. In normal operation, the carriage is prevented from rotating under the influence of gravity by a support roller which rests on a support bar parallel to the guide rod. If the carriage is carried by the moving conveyor beyond the point at which the lubricator should disengage from the conveyor, the support roller drops into a notch in the support rod, permitting the carriage to swing free and disengage from the conveyor. The notch is provided with a downwardly inclined support surface which returns the support roller to normal position on the support bar as the carriage is returned to the start position by a carriage return system, thereby resetting the lubricator for continued operation. The lubricator also may have a locator for the lubricator that is operatively connected to a rotary valve which is actuated by a pneumatic control system of the lubricator.
Inventors
- 👤 Ronald E Thomson
- 👤 Philip J Kast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:45
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
312 words
In an automatic lubricator assembly for lubricating conveyor trolley wheels: elongated guide means for guiding and supporting a movable carriage along a path to permit reciprocating movement thereof; a carriage rotatably mounted on and movable along the length of said guide means from a starting position to a final position; conveyor engaging means mounted on said carriage for engaging a moving conveyor and for permitting said carriage to be engaged and moved by and with said conveyor from said starting position along said guide means to said final position; lubricating means on sAid carriage for lubricating a trolley wheel of said conveyor during the combined movement of said carriage and said conveyor; return means for moving said carriage in a return direction to said starting position; first control means actuated by movement of said carriage beyond a predetermined position for activating said return means, thereby returning said carriage to its starting position; second control means for deactivating said return means when the starting position of said carriage is reached; roller means mounted on said carriage for rollably supporting a portion of the weight of said carriage; elongated roller support means arranged parallel to said guide means below and in supporting contact with said roller means, thereby preventing rotation of said carriage about said guide means during normal operation of said lubricator assembly, said roller support means including release means for permitting said carriage to rotate by gravity, when said carriage has gone beyond a predetermined position, from its normal operative supported position to a rotated position disengaging said conveyor engaging means from engagement with a conveyor; and reset means including an inclined surface leading downwardly from said roller support means to a position therebelow for supporting said roller means during the return of said roller means to its normal operative position during the return trip of said carriage to the starting position.
Claim 2
Dependent Claim
312 words
In an automatic lubricator assembly for lubricating conveyor trolley wheels: elongated guide means for guiding and supporting a movable carriage along a path to permit reciprocating movement thereof; a carriage rotatably mounted on and movable along the length of said guide means from a starting position to a final position; conveyor engaging means mounted on said carriage for engaging a moving conveyor and for permitting said carriage to be engaged and moved by and with said conveyor from said starting position along said guide means to said final position; lubricating means on sAid carriage for lubricating a trolley wheel of said conveyor during the combined movement of said carriage and said conveyor; return means for moving said carriage in a return direction to said starting position; first control means actuated by movement of said carriage beyond a predetermined position for activating said return means, thereby returning said carriage to its starting position; second control means for deactivating said return means when the starting position of said carriage is reached; roller means mounted on said carriage for rollably supporting a portion of the weight of said carriage; elongated roller support means arranged parallel to said guide means below and in supporting contact with said roller means, thereby preventing rotation of said carriage about said guide means during normal operation of said lubricator assembly, said roller support means including release means for permitting said carriage to rotate by gravity, when said carriage has gone beyond a predetermined position, from its normal operative supported position to a rotated position disengaging said conveyor engaging means from engagement with a conveyor; and reset means including an inclined surface leading downwardly from said roller support means to a position therebelow for supporting said roller means during the return of said roller means to its normal operative position during the return trip of said carriage to the starting position.
Claim 3
Dependent Claim
88 words
The lubricator assembly of claim 1 in which said support means includes a support bar, said support bar includes a notch of a size sufficient to permit said roller means to pass therethrough and said reset means includes an elongated open loop spanning said notch with the open end of said loop uppermost, one side of said loop comprising an inclined surface joined to an edge of said notch and leading downwardly from the top of said support bar in the forward direction of travel of said carraige.
Claim 4
Dependent Claim
50 words
The lubricator assembly of claim 2 in which the arms of said loop are of uneven length, the longer of which has a section which protrudes above the far edge of said notch, whereby said roller is forced into said notch when it comes in contact with said protruding section.
Claim 5
Dependent Claim
83 words
The lubricator assembly of claim 1 in which said first and second control means are incorporated in a master valve comprising: a valve body having a bore passing therethrough, a spool assembly forming a pneumatic seal with said bore and having a stem projecting from each open end of said bore, and trip means associated with each of said stems for moving said spool assembly into operative positions, said trip means being actuated by contact with a trip pin mounted on said carriage.
Claim 6
Dependent Claim
61 words
The lubricator assembly of claim 1 in which said conveyor engaging means comprises a locator shaft rotatably secured to said carriage, a bar transversely connected to said shaft, and control means for rotating said shaft between a first position in which said bar contacts and engages said conveyor, and a second portion in which said bar and said conveyor are disengaged.
References Cited (Backward Citations)
US2990916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |