US4177550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool with hollow structural steel members
Assignee: Kearney and Trecker Corp
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Filing: 1978-02-01
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Granted: 1979-12-11
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Expires: 1998-02-01
Abstract
Abstract The bed and upright of a machine tool are made of structural steel tubes which are welded together to form unitary structures. Each of the structural steel tubes is substantially rectangular in cross-sectional shape.
Inventors
- 👤 Charles B. Sipek
- 👤 Richard Johnstone
- 👤 Russell B. Clegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:12
CPC Classifications
F; F16; F16M; F16M1/00; F16M1/08; B; B23; B23Q; B23Q1/00; B23Q1/01; B23Q1/015; Y; Y10; Y10T; Y10T408/00; Y10T408/91; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/1748; Y10T483/1752; Y10T483/1755; Y10T483/1764; Y10T82/00; Y10T82/25; Y10T82/2566; Y10T83/00; Y10T83/95
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
In a machine tool having a bed and having a member slidably mounted on said bed for movement along a horizontal axis, the improvement wherein said bed comprises a plurality of structural steel tubes; all of said tubes being substantially rectangular in cross-sectional shape and extending in a parallel relationship, at least one flat longitudinal face of each of said tubes being in abutment and connected with an adjecent tube, means connecting the ends of all of said tubes together to form a unitary structure; and, a pair of ways attached to said tubes for slidably supporting said member.
Claim 2
Dependent Claim
99 words
In a machine tool having a bed and having a member slidably mounted on said bed for movement along a horizontal axis, the improvement wherein said bed comprises a plurality of structural steel tubes; all of said tubes being substantially rectangular in cross-sectional shape and extending in a parallel relationship, at least one flat longitudinal face of each of said tubes being in abutment and connected with an adjecent tube, means connecting the ends of all of said tubes together to form a unitary structure; and, a pair of ways attached to said tubes for slidably supporting said member.
Claim 3
Dependent Claim
32 words
The machine tool according to claim 1 wherein said member is an upright and comprises a plurality of structural steel tubes; and, means connecting said tubes together to form a unitary structure.
Claim 4
Dependent Claim
30 words
The machine tool according to claim 1 wherein said means connecting said ends of said tubes together includes a pair of end plates attached to opposite ends of said tubes.
Claim 5
Dependent Claim
27 words
The machine tool according to claim 3 and also including a plurality of foot plates attached to the bottom of the two exterior tubes in said bed.
Claim 6
Dependent Claim
19 words
The machine tool according to claim 2 wherein said tubes forming said upright are substantially rectangular in cross-sectional shape.
Claim 7
Dependent Claim
41 words
The machine tool according to claim 5 wherein the tubes forming said upright are arranged in two parallel rows; and, wherein said means connecting said tubes together include a top plate and a bottom attached to opposite ends of said tubes.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |