Patent · US Expired

Lubricating-oil pump for a motor-driven apparatus

US4636147A · kind A · utility

14Cited by

7References

11Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Karl Schweitzer
Karl Nitschmann · Schorndorf, DE
Hans Dolata · Waiblingen, DE

Key dates

Filing date	Aug 2, 1985
Grant date	Jan 13, 1987
Priority date	—
Expiry date	Aug 2, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/263
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A lubricating-oil pump is disclosed for a motor-driven apparatus such as a chain saw. The lubricating-oil pump delivers lubricating oil to a tool. The supply of lubricating oil from the oil pump to the tool can be interrupted. For example, in this way the flow of oil can be stopped when an accessory tool or the like is mounted on the motor-driven apparatus which requires no lubricating oil during operating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.