Grease gun operated by electric motor has driveshaft with external thread which cooperates with internal thread in sleeve attached to grease dispensing piston

The grease gun is operated by an electric motor rather than by hand or compressed air, as in known guns. The driveshaft (12) has an external thread which cooperates with an internal thread in a sleeve (8) attached to the grease dispensing piston (9). Fettpressen zum Abschmieren über Fettnippel werde...

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1. Verfasser: SCHUMANN, AXEL
Format: Patent
Sprache:eng ; ger
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