Hydraulic control device for loader

Details Hydraulic control device for loader Hydraulic control device for loader

2006-07-07

2009-06-23

Pezzuto, Robert E (Department: 3671)

Excavating

Ditcher

Condition responsive

C060S421000, C060S422000

Reexamination Certificate

active

07549241

ABSTRACT:
An arm direction changeover valve (11) is provided in an arm block (20). A first pilot check valve (18) is provided in a first block (21). A second pilot check valve (19) is provided in a second block (22). The three blocks, i.e., the arm block (20), the first block (21), and the second block (22) are arranged side by side. The first block (21) and the second block (22) are arranged to be contiguous to each other. Accordingly, an increase in size can be prevented even if a float mechanism and a multi-direction changeover valve are formed integrally with each other.

REFERENCES:
patent: 5673558 (1997-10-01), Sugiyama et al.
patent: 6050090 (2000-04-01), Tohji
patent: 6820355 (2004-11-01), Yoshino et al.
patent: 7275369 (2007-10-01), Kim
patent: 07-252857 (1995-10-01), None
patent: 2001-124011 (2001-05-01), None
Patent Abstracts of Japan; Publication No. 07-252857; Date of publication: Oct. 3, 1995 (2 pages).
Patent Abstracts of Japan; Date of publication: May 8, 2001; Publication No. 2001-124011 (2 pages).

Affiliated with

Also associated with

Rating

Hydraulic control device for loader does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic control device for loader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic control device for loader will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4115924