Chain saw guide bar

Details Chain saw guide bar Chain saw guide bar

1992-03-18

1993-06-08

Yost, Frank T.

Cutlery

Cutting tools

Saw

301234, B27B 1702

Patent

active

052168140

ABSTRACT:
A chain saw guide bar comprises an elongate plate member having a rounded tip and providing guide means for a saw chain around its periphery. The plate member has a network of intercommunicating passageways provided between its lateral faces and extending between multiple points on its upper and lower periphery so as to permit the flow of fluid therebetween. This arrangement provides efficient transfer of lubricant or other medium to all points on the guide bar periphery and can be up to 30% lighter than conventional designs.

REFERENCES:
patent: 2962061 (1960-11-01), Nielsen
patent: 4138813 (1979-02-01), Harada et al.
patent: 4393590 (1983-07-01), Pantzar
patent: 5050303 (1991-09-01), Sinclair et al.
patent: 5056224 (1991-10-01), Seigneur

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