Patent US3595100A successfully refreshed from Google Patents.
US3595100A
Expired / Lapsed
US
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Hydrostatic lubricating device for the zones between the interengaging elements of a worm and an internally threaded member
Assignee: Waldrich Siegen Werkzeugmaschinenfabrik GmbH
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Filing: 1969-07-10
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Granted: 1971-07-27
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Expires: 1989-07-10
Abstract
Abstract A hydrostatic lubricating device for lubricating the interengaging portions of the teeth of a worm and an internally threaded member by utilizing distributor means for directing lubricant to only those portions of the teeth that are in engagement. This distributor means comprise bars having openings which open to and communicate with other openings in the internally threaded member to supply lubricant to the interengaging teeth. The bars are maintained in engagement with a side surface of the internally threaded members by the pressure on the lubricant and additionally, if desired, by springs.
Inventors
- 👤 Friedrich Stark
- 👤 Wilhelm Steinmetz
- 👤 Heinz Pohlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:46
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/042; F16H57/043; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H57/048; F16H57/0498; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18736; Y10T74/19; Y10T74/19991; Y10T74/19995
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
311 words
A hydrostatic lubricating device for the zones between the interengaging elements of a worm and an internally threaded member, the toothed flanks of the internally threaded member being provided with specific lubricating-oil grooves, comprising: lubricating-oil passageways in said internally threaded member opening outwardly at least one side surface to define lubricating-oil passageway ports, and are connected in fluid communication to said lubicating-oil grooves, said lubricatingoil passageway ports being arranged on said side surface in at least two parallel rows which extend in a longitudinal direction relative to the internally threaded member, each row being associated with one of said oppositely directed toothed flanks; distributor bars extending in a longitudinal direction relative to the internally threaded member and covering said lubricating-oil passageway ports, each of said distributor bars having a distributor channel which opens toward said side surface of said internally threaded member and said lubricating-oil passageway ports; housing means movably guiding said distributor bars generally perpendicularly to said side surface of said internally threaded member; separate pressurized lubricating-oil supply means; cylinder passageway means in said housing means extending generally perpendicularly to said distributor bars and connected in fluid communication with said separate pressurized lubricating-oil supply means, piston means in said cylinder passageway means connected to said distributor bars, said pressurized lubricating oil urging said piston means and said distributor bars toward and against said internally threaded member, said separate lubricating-oil supply means being connected in fluid communication with each of said distributor bars for supplying pressurized lubricating oil to said oppositely directed toothed flanks; and spring means arranged between said distributor bars and said housing means for continuously urging said distributor bars toward and against said internally threaded member with a minimum force necessary, in the absence of a supply of pressurized lubricating oil from said lubricating-oil supply means to maintain the distributor bars in engagement with said internally threaded member.
Claim 2
Dependent Claim
311 words
A hydrostatic lubricating device for the zones between the interengaging elements of a worm and an internally threaded member, the toothed flanks of the internally threaded member being provided with specific lubricating-oil grooves, comprising: lubricating-oil passageways in said internally threaded member opening outwardly at least one side surface to define lubricating-oil passageway ports, and are connected in fluid communication to said lubicating-oil grooves, said lubricatingoil passageway ports being arranged on said side surface in at least two parallel rows which extend in a longitudinal direction relative to the internally threaded member, each row being associated with one of said oppositely directed toothed flanks; distributor bars extending in a longitudinal direction relative to the internally threaded member and covering said lubricating-oil passageway ports, each of said distributor bars having a distributor channel which opens toward said side surface of said internally threaded member and said lubricating-oil passageway ports; housing means movably guiding said distributor bars generally perpendicularly to said side surface of said internally threaded member; separate pressurized lubricating-oil supply means; cylinder passageway means in said housing means extending generally perpendicularly to said distributor bars and connected in fluid communication with said separate pressurized lubricating-oil supply means, piston means in said cylinder passageway means connected to said distributor bars, said pressurized lubricating oil urging said piston means and said distributor bars toward and against said internally threaded member, said separate lubricating-oil supply means being connected in fluid communication with each of said distributor bars for supplying pressurized lubricating oil to said oppositely directed toothed flanks; and spring means arranged between said distributor bars and said housing means for continuously urging said distributor bars toward and against said internally threaded member with a minimum force necessary, in the absence of a supply of pressurized lubricating oil from said lubricating-oil supply means to maintain the distributor bars in engagement with said internally threaded member.
Claim 3
Dependent Claim
32 words
Device according to claim 1, wherein the piston means each have an axial passageway which is in alignment with a transverse passageway which extends to the distributor channel in the distributor bar.
Claim 4
Dependent Claim
46 words
Device according to claim 1, wherein the spring means are advantageously arranged in the cylinder passageway means in the form of cup springs and are supported on one side on the bottom of the cylinder passageway means and on the other side on the piston means.
Claim 5
Dependent Claim
36 words
Device according to claim 1, wherein each piston has at its end facing the distributor bar a recess into which the distributor bar is partially received, whereby the housing means is provided with a corresponding recess.
Claim 6
Dependent Claim
23 words
Device according to claim 1, wherein the housing means is supported on a stationary part of the machine through an adjustable spline part.
Claim 7
Dependent Claim
22 words
Device according to claim 1, wherein a common housing for two distributor bars which are associated with the oppositely directed tooth flanks.
Claim 8
Dependent Claim
57 words
Device according to claim 1, wherein the fill holes, which are fed by said separate lubricating-oil supply means at less pressure, are provided at the ends of each distributor bar, said fill holes being open to the side surface of the internally threaded member and being positioned in the zone of the ports of the lubricating-oil passageways.
Claim 9
Dependent Claim
31 words
Device according to claim 7, wherein a transverse bar with a transverse channel is provided at the end of the distributor bars for coupling to two parallel rows of said ports.
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |