Patent US3563344A successfully refreshed from Google Patents.
US3563344A
Expired / Lapsed
US
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Device for supplying lubricant into self-lubricating sliding friction bearings
Assignee: Individual
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Filing: 1968-11-19
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Granted: 1971-02-16
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Expires: 1988-11-19
Abstract
Abstract A self-lubricating bearing system comprises a series-connected drain tank, pumps, pressure piping and a reservoir. Said reservoir being disposed in the lower portion of the bearing casing is characterized by the employment of an additional duct communicating the piping with a space between the journal of the shaft and the hub in the nonloaded portion of the bearing. The employment of the present invention makes it possible to completely eliminate the danger of the breakdown of the bearing and the unit caused by the stoppage of the supply of lubricant into the bearing.
Inventors
- 👤 Vladimir Nikolaevich Veller
- 👤 Alexandr Petrovich Zharov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:49
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/38; F16N7/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A device for supplying lubricant into a self-lubricating bearing comprising a casing including an upper and a lower portion, said upper portion supporting a hub including a shaft journal inserted therein and annularly spaced therefrom and defining a loaded portion and a nonloaded portion, said device comprising a drain tank, a pump, pressure piping and a reservoir connected in series to one another, said reservoir being disposed in the lower portion of said casing, a duct extending from said reservoir to said hub and communicating said reservoir with said shaft journal for providing self-lubrication of lubricant from said reservoir, said pump and said duct being connected in series and operable for simultaneously providing lubricant to said shaft journal, and an additional duct communicating said shaft journal with said pressure piping, said additional duct including an outlet portion communicating with said shaft journal in the nonloaded portion of the bearing.
Claim 2
Independent Claim
149 words
A device for supplying lubricant into a self-lubricating bearing comprising a casing including an upper and a lower portion, said upper portion supporting a hub including a shaft journal inserted therein and annularly spaced therefrom and defining a loaded portion and a nonloaded portion, said device comprising a drain tank, a pump, pressure piping and a reservoir connected in series to one another, said reservoir being disposed in the lower portion of said casing, a duct extending from said reservoir to said hub and communicating said reservoir with said shaft journal for providing self-lubrication of lubricant from said reservoir, said pump and said duct being connected in series and operable for simultaneously providing lubricant to said shaft journal, and an additional duct communicating said shaft journal with said pressure piping, said additional duct including an outlet portion communicating with said shaft journal in the nonloaded portion of the bearing.
Claim 3
Dependent Claim
38 words
A device as claimed in claim 1, wherein said outlet of said additional duct is disposed in the portion of the annular space between the hub and the shaft journal expanding in the direction of the shaft rotation.
Claim 4
Dependent Claim
57 words
A device as claimed in claim 1, wherein said additional duct is connected with said pressure piping by means for shifting the supply of the lubricant from the piping to said additional duct when the pressure of the lubricant in said space between the hub and the shaft journal in the nonloaded portion of the bearing drops.
Claim 5
Dependent Claim
41 words
A device as claimed in claim 3, wherein said means for shifting is essentially a three-way valve actuated by a pressure drop of the lubricant in both said pressure piping and said annular space of the nonloaded portion of said bearing.
Claim 6
Dependent Claim
103 words
A device as claimed in claim 4, wherein said three-way valve comprises means defining a chamber for supplying lubricant from said pressure piping and two rigidly interconnected locks, one of which locks passes the lubricant from said chamber into said reservoir of the lower portion of said casing when the device operates under self-lubricating conditions, and the other of which locks passes lubricant into the additional duct when self-lubrication is discontinued and the pressure in said annular space between the shaft journal and the hub of the bearing drops, and further including a pulse tube for communicating said annular space with said chamber.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |