Patent US3744190A successfully refreshed from Google Patents.
US3744190A
Expired / Lapsed
US
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Suspension structure of liner plates
Assignee: BENFUR Mfg CO
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Filing: 1971-12-22
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Granted: 1973-07-10
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Expires: 1991-12-22
Abstract
Abstract A structure for supporting liner plates of cast hard alloy, in which the configuration of the plates maintains a substantially constant cross-section to eliminate porosity by assuring uniform cooling.
Inventors
- 👤 J Degroot
- 👤 B Fuerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/06; B24C5/066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A liner structure for a machine housing, said structure including a plurality of plates of cast material secured to the inside of said housing, wherein the improvement comprises: abutment means providing a set of dovetail surfaces on the back of at least certain of said plates, said surfaces defining portions of ridges extending along said back providing a substantially continuous cross-section along said plate with respect to the thickness thereof, and a clip having opposite portions engageable with said dovetail surfaces, and a portion normally engaged to said housing.
Claim 2
Dependent Claim
89 words
A liner structure for a machine housing, said structure including a plurality of plates of cast material secured to the inside of said housing, wherein the improvement comprises: abutment means providing a set of dovetail surfaces on the back of at least certain of said plates, said surfaces defining portions of ridges extending along said back providing a substantially continuous cross-section along said plate with respect to the thickness thereof, and a clip having opposite portions engageable with said dovetail surfaces, and a portion normally engaged to said housing.
Claim 3
Dependent Claim
55 words
A structure as defined in claim 1, wherein said dovetail surfaces face inwardly toward the center of said plate, and said clip has the outer edges of the base thereof normally engaging said surfaces, said clip having a tab spaced from the said base and normally engaging a projection on the inside of said housing.
Claim 4
Dependent Claim
37 words
A structure as defined in claim 2, wherein said clip is of bendable sheet material, and said tab is connected to said base by a portion extending from said base and disposed transversely to said dovetail surfaces.
Claim 5
Dependent Claim
18 words
A structure as defined in claim 1, wherein said dovetail surfaces are disposed at a tapered spaced relationship.
Claim 6
Dependent Claim
32 words
A structure as defined in claim 1, wherein at least one of said dovetail surfaces is interrupted by an abutment to limit the freedom of movement of said clip along said surfaces.
References Cited (Backward Citations)
US2341559A
Cited
US2909870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |