Inspection of track assemblies

Details Inspection of track assemblies Inspection of track assemblies

1977-12-20

1980-06-24

Marmor, Charles A.

Wheel substitutes for land vehicles

Combined or convertible

B62D 5500

Patent

active

042092051

ABSTRACT:
An improved track assembly adapted for use with crawler-type vehicles of the type including a joint having a shaft, an element journalled on the shaft, a lubricant port opening to one end of the shaft and in fluid communication with the interface of the shaft and the element, and a removable plug received in the port for confining lubricant therein. The invention contemplates the improvement wherein the plug is an elastomeric sleeve having a frusto-conical outer surface and a rod of translucent material received within and sealed against the sleeve. The presence or absence of lubricant within the port is ascertained by optical inspection of the end of the rod exterior of the port without removing the plug from the port.

REFERENCES:
patent: 301103 (1884-07-01), Eberhard
patent: 408155 (1889-07-01), Wilson
patent: 3535934 (1970-10-01), Rapata
patent: 3568628 (1971-03-01), Erickson
patent: 3762778 (1973-10-01), Boggs et al.
patent: 3796098 (1974-03-01), Trayer
patent: 3945693 (1976-03-01), Booth et al.

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