Screening apparatus for quarrying

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Description

FIG. 1 is a side elevational view of a screening apparatus for quarrying, showing our invention, the side opposite that shown in FIG. 1 being a substantial mirror image of the side shown in FIG. 1;

FIG. 2 is a top plan view thereof; and

FIG. 3 is an end elevational view from the left side of FIG. 1.

Referenced Cited
U.S. Patent Documents
D237105 October 1975 O'Neill et al.
Patent History
Patent number: D244925
Type: Grant
Filed: Nov 11, 1975
Date of Patent: Jul 5, 1977
Assignee: Powerscreen International Limited
Inventors: Patrick O'Neill (Dungannon), Patrick J. Douglas (Dungannon), Michael L. Mallaghan (Dungannon)
Primary Examiner: Alan P. Douglas
Attorney: Marcus B. Finnegan
Application Number: 5/630,774
Classifications
Current U.S. Class: D12/58
International Classification: D1205;