US3896903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid lubricant feed device
Assignee: Individual
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Filing: 1974-03-08
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Granted: 1975-07-29
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Expires: 1994-03-08
Abstract
Abstract A feed device holds a solid mass of lubricant molded in a spiral form, one end of the solid mass being in contact with a surface to be lubricated, and the other end being engaged with a spiral spring for imparting a spiral motion to the mass while pressing the mass to the surface to be lubricated along a spiral guide. The lubricant is continuously supplied to the surface to be lubricated by the thrust power of the spiral spring.
Inventors
- 👤 Kiyotaka Takimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:08
CPC Classifications
F; F16; F16N; F16N15/00; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/913
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
A device, for applying one end of a spiral shape strip of solid lubricant to a surface to be lubricated, comprising, in combination, means forming a support axis; a spiral guide supported on and surrounding said means, and having one end adapted to be positioned adjacent the surface to be lubricated, said spiral guide having a constant pitch and radius and being formed to have supporting and guiding engagement with a spiral strip of solid lubricant when disposed therealong; and means on said device for imparting a spiral force along said spiral guide in the direction of said one end and operable to engage the opposite end of a spiral strip of solid lubricant when supported on said spiral guide and apply pressure thereto to maintain the one end thereof engaged with the surface to be lubricated, and to impart a spiral motion to a spiral strip of solid lubricant when supported on said spiral guide to advance the solid lubricant along said spiral guide as the one end of the solid lubricant is worn away by the surface to be lubricated.
Claim 2
Independent Claim
182 words
A device, for applying one end of a spiral shape strip of solid lubricant to a surface to be lubricated, comprising, in combination, means forming a support axis; a spiral guide supported on and surrounding said means, and having one end adapted to be positioned adjacent the surface to be lubricated, said spiral guide having a constant pitch and radius and being formed to have supporting and guiding engagement with a spiral strip of solid lubricant when disposed therealong; and means on said device for imparting a spiral force along said spiral guide in the direction of said one end and operable to engage the opposite end of a spiral strip of solid lubricant when supported on said spiral guide and apply pressure thereto to maintain the one end thereof engaged with the surface to be lubricated, and to impart a spiral motion to a spiral strip of solid lubricant when supported on said spiral guide to advance the solid lubricant along said spiral guide as the one end of the solid lubricant is worn away by the surface to be lubricated.
Claim 3
Dependent Claim
91 words
The device as set forth in claim 1, wherein said spiral force imparting means comprises a coil spring surrounding said means forming a support axis and having one end adapted to be engaged with the opposite end of a spiral strip of solid lubricant when supported on said spiral guide; and means operatively engaged with the opposite end of said coil spring and operable to impart thereto a torque in a direction to advance said one end of said spiral spring along said spiral guide toward the surface to be lubricated.
Claim 4
Dependent Claim
101 words
The device as set forth in claim 2, wherein said torque imparting means comprises an annular cap rotatably mounted on said means forming a support axis; said annular cap having a central opening receiving said means forming a support axis and formed with ratchet teeth on its periphery; a ratchet fixed to said means forming a support axis and engaged with said ratchet teeth to permit rotation of said annular cap only in the winding direction of said coil spring; said annular cap being formed with an annular recess therein and said coil spring being fixedly housed in said annular recess.
Claim 5
Dependent Claim
39 words
The device as set forth in claim 1, in combination with a spiral strip of solid lubricant, said spiral strip of solid lubricant formed along the entire length thereof with a spiral guiding formation for engaging said spiral guide.
Claim 6
Dependent Claim
49 words
The device as set forth in claim 4, wherein a spiral rib extends along said spiral guide, and the spiral guiding formation of said spiral strip of solid lubricant is a recess in the lower face of the spiral strip of solid lubricant slidably engageable with said spiral rib.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |