Pivotal blade spikes for tractors

Details Pivotal blade spikes for tractors Pivotal blade spikes for tractors

1982-04-07

1984-05-15

Johnson, Richard J.

Earth working

Scraper supports narrow depending tool

172136, 172739, E02F 312

Patent

active

044482604

ABSTRACT:
A universal earth-loosening attachment useful with earth-moving vehicles. The attachment mounts to the back side of tractor and bulldozer blades. The attachment includes a spike which engages the earth for loosening the earth during backward motion of the vehicle and which automatically swings upwardly to drag inoperatively on the earth surface during forward motion of the vehicle. Adjustment means allow the spike to engage the earth at an optimum angle relative to the earth grade for efficient operation. The spike is self-storing in an upright position.

REFERENCES:
patent: 361792 (1887-04-01), Sweet
patent: 1524369 (1925-01-01), Ramage
patent: 1541162 (1925-06-01), Mercer
patent: 2219160 (1940-10-01), White
patent: 2302702 (1942-11-01), Leschinsky
patent: 2396739 (1946-03-01), McCauley
patent: 2468380 (1949-04-01), Smith
patent: 2475710 (1949-07-01), McCauley
patent: 2654967 (1953-10-01), Small
patent: 2700833 (1955-02-01), Small
patent: 2840931 (1958-07-01), Appel
patent: 2869257 (1959-01-01), Braukly
patent: 2996818 (1961-08-01), Buuck
patent: 3120281 (1964-02-01), Peveler
patent: 3124888 (1964-03-01), Jeffrey
patent: 3776317 (1973-12-01), Royer
patent: 4117890 (1978-10-01), Youngers

Affiliated with

Also associated with

Rating

Pivotal blade spikes for tractors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pivotal blade spikes for tractors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pivotal blade spikes for tractors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-839815