Inventor
JENSEN LAURENCE A
US7 patents
Patents
7 patentsUS5967747AOct 19, 1999
Low noise fan
TENNANT CO24 citations91
US5829094ANov 3, 1998
Sweeper with electromagnetic filter cleaning
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US6896468B2May 24, 2005
Battery interchange system for battery powered floor maintenance equipment
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US7805802B2Oct 5, 2010
Floor cleaning machine debris collection system
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US10470637B2Nov 12, 2019
Surface maintenance machine with an auxiliary waste removal system
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US11154175B2Oct 26, 2021
Surface maintenance machine with removable storage
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US10595697B2Mar 24, 2020
Surface maintenance machine with skirting to allow particulate pickup
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