公开(公告)号：WO2021188514A1

公开(公告)日：2021-09-23

申请号：PCT/US2021/022529

申请日：2021-03-16

Applicant: TENNANT COMPANY

Inventor： JOYNT, Daniel

IPC: A47L11/10 ,  A47L11/18 ,  A47L11/40

Abstract: A surface maintenance machine comprises a surface maintenance head assembly with attached surface maintenance tool for collecting debris/fluid using a fluid delivery/recovery system. Embodiments include an outlet nozzle configured to dispense cleaning fluid exiting the outlet nozzle on the surface maintenance tool. The outlet nozzle is fluidly connected to a cleaning fluid source which can vary the intensity of cleaning fluid exiting the outlet nozzle such that different intensities of the cleaning fluid correspond to the cleaning fluid being dispensed on different areas of the surface maintenance tool. Embodiments also include a second outlet nozzle, located opposite the first, which is configured to dispense cleaning fluid exiting the outlet nozzle on the surface maintenance tool. Further embodiments include a pump which can vary the intensity of cleaning fluid exiting the outlet nozzle in a cyclical manner and suspend the cleaning fluid from exiting the outlet nozzle.

公开(公告)号：EP1729622B1

公开(公告)日：2012-05-09

申请号：EP05724584.7

申请日：2005-03-07

Applicant: TENNANT COMPANY

Inventor： JOYNT, Daniel

IPC: A47L11/30 ,  E01H1/08

CPC classification number: A47L11/30

Abstract: A rear squeegee linkage for surface cleaning equipment, which uses a pair of compliant bushings for improved shock absorption. The actuator is mounted with a pair of clevis pins and cotter pins, and may be replaced if needed without screwing or unscrewing any bolts or screws, or resetting any springs.

公开(公告)号：EP4120885A1

公开(公告)日：2023-01-25

申请号：EP21717284.0

申请日：2021-03-16

Applicant: Tennant Company

Inventor： JOYNT, Daniel

IPC: A47L11/10 ,  A47L11/18 ,  A47L11/40

公开(公告)号：EP1729622A2

公开(公告)日：2006-12-13

申请号：EP05724584.7

申请日：2005-03-07

Applicant: TENNANT COMPANY

Inventor： JOYNT, Daniel

IPC: A47L11/30 ,  E01H1/08

CPC classification number: A47L11/30

Abstract: A rear squeegee linkage for surface cleaning equipment, which uses a pair of compliant bushings for improved shock absorption. The actuator is mounted with a pair of clevis pins and cotter pins, and may be replaced if needed without screwing or unscrewing any bolts or screws, or resetting any springs.