Cushion compression struts for bulldozer blades

Details Cushion compression struts for bulldozer blades Cushion compression struts for bulldozer blades

1976-03-29

1978-02-21

Marbert, James B.

Spring devices

Resilient shock or vibration absorber

Bumper

280481, 172803, B60G 1122

Patent

active

040748960

ABSTRACT:
A bulldozer blade has operatively connected therewith compression struts which include resilient means for cushioning the shock of impact applied to the blade. Each strut includes cylinder means, rod means reciprocal relative thereto, and a piston mounted on the rod within the cylinder means. First cushioning means cushion initial movement of the rod inward of the cylinder, and subsequent movement of the rod inward of the cylinder is cushioned by the first cushioning means and also second cushioning means. Rebound movement of the rod relative to the cylinder means is cushioned by third cushioning means.

REFERENCES:
patent: 3243203 (1966-03-01), Kermiz et al.
patent: 3265380 (1966-08-01), Hall et al.
patent: 3537696 (1970-11-01), Webster, Jr.
patent: 3858665 (1975-01-01), Winker
patent: 3977699 (1976-08-01), Wagatsuma

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