US4252381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine slideway
Assignee: Milacron Inc
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Filing: 1979-09-13
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Granted: 1981-02-24
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Expires: 1999-09-13
Abstract
Abstract An improved slideway configuration is disclosed wherein a first slide has a first slide surface adapted to be moved along a second slide, and the first slide surface has a plurality of serrations formed in a central area defined in the first slide surface. A continuously smooth portion of the first slide surface borders the serrated central area, and lubricant-bearing pressurized fluid is introduced to the serrated central area to relieve the normal load and more evenly distribute lubricant.
Inventors
- 👤 Rudolf J. A. Kimmelaar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/02; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/38; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
115 words
A slideway for machine tools, comprising: (a) a first slide having a first slide surface adapted to be moved relatively along a cooperating second slide surface; (b) a plurality of serrations formed in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion formed on said first slide surface bordering said central area, said portion comprised, in part, of a material softer than either of the first or second slide surfaces; (d) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion, said groove interconnecting substantially all of said serrations; (e) means for communicating fluid to said serrations.
Claim 2
Dependent Claim
115 words
A slideway for machine tools, comprising: (a) a first slide having a first slide surface adapted to be moved relatively along a cooperating second slide surface; (b) a plurality of serrations formed in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion formed on said first slide surface bordering said central area, said portion comprised, in part, of a material softer than either of the first or second slide surfaces; (d) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion, said groove interconnecting substantially all of said serrations; (e) means for communicating fluid to said serrations.
Claim 3
Dependent Claim
19 words
The slideway of claim 1, wherein said means for communicating fluid is a fluid port in said first slide.
Claim 4
Independent Claim
107 words
A method for supporting a machine slide, comprising the following steps;: (a) forming a smooth support surface on a lower face of said slide; (b) forming a plurality of serrations in a central area defined in said support surface so as to create a smooth surface portion bordering said central area; (c) interconnecting substantially all of said serrations; (d) grooving said surface along the boundary of said central area; (e) mounting said machine slide to a relatively stationary second slide; (f) introducing a pressurized mixture of air and oil to said serrations; and (g) moving said machine slide on said second slide while said serrations are pressurized.
Claim 5
Independent Claim
107 words
A method for supporting a machine slide, comprising the following steps;: (a) forming a smooth support surface on a lower face of said slide; (b) forming a plurality of serrations in a central area defined in said support surface so as to create a smooth surface portion bordering said central area; (c) interconnecting substantially all of said serrations; (d) grooving said surface along the boundary of said central area; (e) mounting said machine slide to a relatively stationary second slide; (f) introducing a pressurized mixture of air and oil to said serrations; and (g) moving said machine slide on said second slide while said serrations are pressurized.
Claim 6
Dependent Claim
97 words
An improved slideway, comprising; (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area, said continuous and smooth portion of said first slide surface comprised, in part, of a material softer than either of the first or second slide surfaces; and (d) means for introducing pressurized fluid to substantially all of said serrations in said central area.
Claim 7
Dependent Claim
97 words
An improved slideway, comprising; (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area, said continuous and smooth portion of said first slide surface comprised, in part, of a material softer than either of the first or second slide surfaces; and (d) means for introducing pressurized fluid to substantially all of said serrations in said central area.
Claim 8
Dependent Claim
106 words
An improved machine slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area, said continuous and smooth portion of said first slide surface comprised, in part, of a material softer than either of the first or second slide surfaces; (d) a groove interconnecting substantially all of said serrations in said central area; and (e) a fluid port in said slideway communicating with said groove.
Claim 9
Dependent Claim
106 words
An improved machine slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area, said continuous and smooth portion of said first slide surface comprised, in part, of a material softer than either of the first or second slide surfaces; (d) a groove interconnecting substantially all of said serrations in said central area; and (e) a fluid port in said slideway communicating with said groove.
Claim 10
Dependent Claim
93 words
An imporved slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area; (d) means for introducing pressurized fluid to substantially all of said serrations in said central area; and (e) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion.
Claim 11
Dependent Claim
93 words
An imporved slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area; (d) means for introducing pressurized fluid to substantially all of said serrations in said central area; and (e) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion.
Claim 12
Dependent Claim
102 words
An improved machine slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area; (d) a groove interconnecting substantially all of said serrations in said central area; (e) a fluid port in said slideway communicating with said groove; and (f) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion.
Claim 13
Dependent Claim
102 words
An improved machine slideway, comprising: (a) a first slide surface on said slideway, adapted to be relatively moved along a cooperating second slide surface; (b) a plurality of serrations in a central area defined in said first slide surface; (c) a substantially continuous and smooth portion of said first slide surface bordering said central area; (d) a groove interconnecting substantially all of said serrations in said central area; (e) a fluid port in said slideway communicating with said groove; and (f) a boundary groove in said first slide surface traversing the interface of said central area and said continuous and smooth portion.
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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |