Patent US3552729A successfully refreshed from Google Patents.
US3552729A
Expired / Lapsed
US
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Slideway construction
Assignee: Koppers Wistra Ofenbau GmbH
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Filing: 1968-10-01
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Granted: 1971-01-05
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Expires: 1988-10-01
Abstract
Abstract A support rail in a slideway for pusher furnaces includes at least one elongated tubular support member having a longitudinally extending surface portion thereon. A pair of raised ribs are rigid with the support member and extend longitudinally thereof at opposite sides of the surface portion. An elongated rider shoe of polygonal cross section has longitudinally extending wider and narrower surfaces and is supported with one of the narrower surfaces on the surface portion of a tubular member, resting loosely thereon between the ribs which support it.
Inventors
- 👤 Gunter Hepp
- 👤 Christian Brockmann
- 👤 Hans Christoph Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:24
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
129 words
In a slideway, particularly for pusher furnaces, the combination comprising at least one elongated tubular support element having a longitudinally extending surface portion; a pair of raised ribs rigid with said tubular support element and extending longitudinally thereof at opposite sides of said surface portion; at least one elongated rider shoe of polygonal cross section having longitudinally extending wider and narrower surfaces, saiD rider shoe being positioned between and supported by said guide ribs and loosely resting on said surface portion with one of said narrower surfaces; at least one longitudinally extending groove provided in said one narrower surface; and a guide rail provided on said surface portion rigid therewith and extending longitudinally thereof intermediate said ribs, said guide rail extending into said groove for stabilizing said rider shoe.
Claim 2
Dependent Claim
129 words
In a slideway, particularly for pusher furnaces, the combination comprising at least one elongated tubular support element having a longitudinally extending surface portion; a pair of raised ribs rigid with said tubular support element and extending longitudinally thereof at opposite sides of said surface portion; at least one elongated rider shoe of polygonal cross section having longitudinally extending wider and narrower surfaces, saiD rider shoe being positioned between and supported by said guide ribs and loosely resting on said surface portion with one of said narrower surfaces; at least one longitudinally extending groove provided in said one narrower surface; and a guide rail provided on said surface portion rigid therewith and extending longitudinally thereof intermediate said ribs, said guide rail extending into said groove for stabilizing said rider shoe.
Claim 3
Dependent Claim
56 words
In a slideway as defined in claim 1; further comprising at least one recess provided in said one narrower surface and extending transversely of said groove; and at least one abutment rib provided on said surface portion extending transversely of the elongation of said tubular element and being at least in part accommodated in said recess.
Claim 4
Dependent Claim
19 words
In a slideway as defined in claim 2, wherein at least said abutment rib is of polygonal cross section.
Claim 5
Dependent Claim
14 words
In a slideway as defined in claim 1, said tubular element being internally cooled.
Claim 6
Dependent Claim
45 words
In a slideway as defined in claim 4, said rider shoe having opposite ends and being provided with at least one transverse hole intermediate said ends; and further comprising bolt means extending through said hole and rigidly connecting said rider shoe with said tubular element.
Claim 7
Dependent Claim
37 words
In a slideway as defined in claim 1, said rider shoe being of substantially U-shaped cross section with the open side of the U-shape facing said surface portion and constituting said groove into which said rail extends.
Claim 8
Dependent Claim
17 words
In a slideway as defined in claim 1, said rail comprising at least two longitudinally aligned sections.
Claim 9
Dependent Claim
40 words
In a slideway as defined in claim 4, said one narrower surface being provided with a plurality of recesses whereby only spaced parts of said one narrower surface contact said surface portion; and thermally insulating material received in said recesses.
Claim 10
Dependent Claim
23 words
In a slideway as defined in claim 8, said thermally insulating material being freely received in said recesses and not weighted and compressed.
Claim 11
Dependent Claim
50 words
In a slideway as defined in claim 4; and further comprising thermal insulating means embedding said tubular member and in part embedding said rider shoe, the latter being exposed to the extend requisite for enabling free sliding movement of a supported article on a supporting surface of the rider shoe.
Claim 12
Dependent Claim
61 words
In a slideway as defined in claim 10, said insulating means comprising an insulating substance extending toward but out of contact with said rider shoe so that gaps exist between opposite lateral sides of the latter and the insulating substance; and further comprising longitudinally extending ridges provided on said rider shoe projecting laterally thereof and each overlying one of said gaps.
Claim 13
Dependent Claim
45 words
In a slideway as defined in claim 4, said rider shoe consisting of a lower part and an upper part, said upper part consisting of material which has higher resistance to heat than said lower part; and means rigidly connecting said parts to one another.
Claim 14
Dependent Claim
43 words
In a slideway as defined in claim 12, said means comprising connecting strips rigid with opposite lateral sides of one of said parts and overlying opposite lateral sides of the other part, and releasable connecting elements connecting said strips with said other part.
Claim 15
Dependent Claim
35 words
In a slideway as defined in claim 13, said parts having respective abutment surfaces; and said means further comprising mating projections and recesses provided on the respective abutment surfaces and matingly interengaging with each other.
References Cited (Backward Citations)
FR1351487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |