Invention Grant
- Patent Title: Vacuum cleaner
- Patent Title (中): 吸尘器
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Application No.: US3639941DApplication Date: 1970-06-16
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Publication No.: US3639941APublication Date: 1972-02-08
- Inventor: KIRWAN WARREN J , BRUNING ELMER E
- Applicant: SUNBEAM CORP
- Assignee: Sunbeam Corp
- Current Assignee: Sunbeam Corp
- Priority: US4661570 1970-06-16
- Main IPC: A47L5/30
- IPC: A47L5/30 ; A47L5/34
Abstract:
A rotary brush for a vacuum cleaner including mounting means for biasing the brush downwardly against the rug through the use of the tension applied by the belt drive from the motor.
Information query
