Patent US578392A successfully refreshed from Google Patents.
US3672467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus, such as a drawing unit or a calender dryer
Assignee: Vepa AG
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Filing: 1970-07-28
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Granted: 1972-06-27
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Expires: 1990-07-28
Abstract
Abstract The present disclosure relates to an oil circulation indicating instruments which comprise a housing, a plurality of boreholes angularly disposed within said housing in an upwardly-downwardly direction, said boreholes communicating at their lower end with a common channel disposed in said housing, additional boreholes communicating with each of said angularly disposed boreholes and with the elements to be lubricated, a movable float means disposed in each of said angularly disposed boreholes and adapted to be raised to a point above said additional boreholes or lowered to a point below said additional boreholes, and a central lubricant supply pipe communicating with said common channel for the introduction of the lubricant thereto.
Inventors
- 👤 Heinz Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:51
CPC Classifications
F; F16; F16N; F16N27/00; D; D21; D21G; D21G9/00; F16N29/00; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/6977
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
An oil circulation indicating instrument which comprises a housing, a plurality of bore holes angularly disposed within said housing in an upwardly-downwardly direction, said boreholes communicating at their lower end with a common channel disposed in said housing, additional boreholes communicating with each of said angularly disposed boreholes at substantially the center thereof and wIth the elements to be lubricated, a movable float means disposed in each of said angularly disposed boreholes and adapted to be raised to a point above said additional boreholes or lowered to a point below said additional boreholes, a central lubricant supply pipe communicating with said common channel for the introduction of the lubricant thereto and means to indicate movement of said float means.
Claim 2
Dependent Claim
119 words
An oil circulation indicating instrument which comprises a housing, a plurality of bore holes angularly disposed within said housing in an upwardly-downwardly direction, said boreholes communicating at their lower end with a common channel disposed in said housing, additional boreholes communicating with each of said angularly disposed boreholes at substantially the center thereof and wIth the elements to be lubricated, a movable float means disposed in each of said angularly disposed boreholes and adapted to be raised to a point above said additional boreholes or lowered to a point below said additional boreholes, a central lubricant supply pipe communicating with said common channel for the introduction of the lubricant thereto and means to indicate movement of said float means.
Claim 3
Dependent Claim
28 words
The oil circulation indicating instrument of claim 1, wherein the downwardly extending portion of the angularly disposed boreholes penetrate the front wall of the housing forming openings therein.
Claim 4
Dependent Claim
18 words
The oil circulation indicating instrument of claim 2, wherein said openings are covered by an oil-tight transparent plate.
Claim 5
Dependent Claim
20 words
The oil circulation indicating instrument of claim 1, wherein the central lubricant supply pipe is provided with a pump means.
Claim 6
Dependent Claim
26 words
The oil circulation indicating instrument of claim 1, wherein the housing is provided with said additional boreholes for each individual point of lubrication to be controlled.
Claim 7
Dependent Claim
16 words
The oil circulation indicating instrument of claim 1, wherein the movable float means is a ball.
Claim 8
Dependent Claim
27 words
The oil circulation indicating instrument of claim 1, wherein the lower portions of the angularly inclined boreholes and the movable float means are painted with contrasting colors.
References Cited (Backward Citations)
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Cited
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GB117432A
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US1480849A
Cited
US1730127A
Cited
US3038495A
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |