US3682227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bi-metal crusher liner
Assignee: Individual
•
Filing: 1970-07-24
•
Granted: 1972-08-08
•
Expires: 1990-07-24
Abstract
Abstract This is a method of forming a wearing assembly for use in gyratory crushers whereby either the mantle or bowl liner of a crusher is made of a composition in which a backing member with a high tensile strength supports a crushing or working surface having high wear resistance. The working surface is in the form of discontinuous surface members permanently mounted on or cast integrally with the backing body and structurally connected only by the backing body.
Inventors
- 👤 Jerome C Motz
- 👤 Francis Scaffidi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/005; B22; B22D; B22D19/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
A method of forming a wearing assembly for the crushing part of a crusher of the gyrated head type which includes pouring a circumferential, generally frusto-conical continuous backing body of a metal of predetermined hardness formed and adapted to extend about and be removably supported against the crushing part, and adding to said backing body a plurality of discontinuous surface members each of substantial circumferential extent and formed of a material of greater hardness than the material of the backing body, while shaping said surface members with an otherwise generally continuous crushing surface to take substantially the entire crushing wear of the material being crushed when the crusher is being operated, and while maintaining a slight separation between the adjacent peripheral edges of the surface members, whereby, as a group, they are structurally connected only by the backing body and present a generally frusto-conical continuous outer crushing surface.
Claim 2
Independent Claim
148 words
A method of forming a wearing assembly for the crushing part of a crusher of the gyrated head type which includes pouring a circumferential, generally frusto-conical continuous backing body of a metal of predetermined hardness formed and adapted to extend about and be removably supported against the crushing part, and adding to said backing body a plurality of discontinuous surface members each of substantial circumferential extent and formed of a material of greater hardness than the material of the backing body, while shaping said surface members with an otherwise generally continuous crushing surface to take substantially the entire crushing wear of the material being crushed when the crusher is being operated, and while maintaining a slight separation between the adjacent peripheral edges of the surface members, whereby, as a group, they are structurally connected only by the backing body and present a generally frusto-conical continuous outer crushing surface.
Claim 3
Dependent Claim
19 words
The method of claim 1 characterized by pouring the surface members in an interlocking relationship with the backing body.
References Cited (Backward Citations)
US1111807A
Cited
US2588900A
Cited
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 |