Patent US3115213A successfully refreshed from Google Patents.
Patent US3681811A successfully refreshed from Google Patents.
US3681811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning iron moulds
Assignee: Individual
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Filing: 1970-11-20
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Granted: 1972-08-08
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Expires: 1990-11-20
Abstract
Abstract This invention relates to apparatus for cleaning iron moulds used in steel works. Such apparatus comprises a base plate, a guide tube mounted on the base to extend upwardly therefrom, a frusto-conical upwardly projecting lip portion at the upper end of said guide tube, a rod, means at or adjacent the lower end of said rod whereby the rod is movable to described a cone of revolution, resilient means which coact with said base plate and the lower end of said rod, to bias said rod to urge it into a vertical orientation, brush means flexibly secured proximate the upper end of said rod so as to extend laterally therefrom and a frusto-conical portion at the upper end of said rod. Said frustoconical portion tapers inwardly in an upward direction.
Inventors
- 👤 Ernst Amelung
- 👤 Edgar Belz
- 👤 Egon Evertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:14
CPC Classifications
B; B22; B22C; B22C23/00; B22C23/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
Apparatus for cleaning iron moulds used in steel works comprising a base plate, a guide tube mounted on the base plate to extend upwardly therefrom, a frusto-conical outwardly projecting lip portion at the upper end of said guide tube, an upwardly extending rod mounted in the guide tube, means adjacent the lower end of said rod mounting said rod in said guide tube whereby the rod is movable to describe a cone of revolution, resilient means which coacts with said base plate and the lower end of said rod to bias said rod to urge it into a vertical orientation, brush means flexibly secured proximate the upper end of said rod so as to extend laterally therefrom and a frustoconical portion at the upper end of said rod, said frusto-conical portion tapering inwardly in an upward direction.
Claim 2
Dependent Claim
137 words
Apparatus for cleaning iron moulds used in steel works comprising a base plate, a guide tube mounted on the base plate to extend upwardly therefrom, a frusto-conical outwardly projecting lip portion at the upper end of said guide tube, an upwardly extending rod mounted in the guide tube, means adjacent the lower end of said rod mounting said rod in said guide tube whereby the rod is movable to describe a cone of revolution, resilient means which coacts with said base plate and the lower end of said rod to bias said rod to urge it into a vertical orientation, brush means flexibly secured proximate the upper end of said rod so as to extend laterally therefrom and a frustoconical portion at the upper end of said rod, said frusto-conical portion tapering inwardly in an upward direction.
Claim 3
Dependent Claim
30 words
Apparatus as claimed in claim 1 wherein the upper end of said guide tube is provided with axially extending slots for the reception of fastening elements of a mould-handling crane.
Claim 4
Dependent Claim
50 words
Apparatus as claimed in claim 1 wherein said resilient means is a resilient dish-shaped plate which is arranged with its apex pointing upwards and which is arranged on said base plate whereby the lower end of said rod is widened and only touches the cup-shaped disc with its peripheral area.
Claim 5
Dependent Claim
28 words
Apparatus as claimed in clAim 3 wherein said rod is provided with a spherical portion proximate its lower end, said spherical portion being supported in a socket bearing.
Claim 6
Dependent Claim
14 words
Apparatus as claimed in claim 1 wherein said resilient means is a Belville washer.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |