Port plug for hydraulic cylinders

- Deere & Company
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Description

FIG. 1 is a top plan view of a port plug for hydraulic cylinders showing our new design;

FIG. 2 is a side elevational view;

FIG. 3 is a bottom plan view; and,

FIG. 4 is a cross sectional view taken along lines 4--4 of FIG. 1.

Referenced Cited
U.S. Patent Documents
D243510 March 1, 1977 Shirey et al.
D243582 March 8, 1977 Shirey
D317862 July 2, 1991 Yamamoto
4568228 February 4, 1986 Rosan, Jr.
4701089 October 20, 1987 Nettel
Patent History
Patent number: D331064
Type: Grant
Filed: May 18, 1990
Date of Patent: Nov 17, 1992
Assignee: Deere & Company (Moline, IL)
Inventors: Tyrone A. Wilson (Davenport, IA), Gregory J. McKenzie (East Moline, IL)
Primary Examiner: A. Hugo Word
Assistant Examiner: R. Seifert
Application Number: 7/527,781
Classifications
Current U.S. Class: Element Or Attachment (D15/5); D/8387