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公开(公告)号：US12004705B2
公开(公告)日：2024-06-11
申请号：US17526983
申请日：2021-11-15
发明人： Kevin Pohlman , Rafael Davila , Nicholas DeBlasio
IPC分类号： A47L9/28
CPC分类号： A47L9/2821 , A47L9/2842 , A47L9/2884
摘要： A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.
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公开(公告)号：US20220104671A1
公开(公告)日：2022-04-07
申请号：US17428431
申请日：2020-02-04
发明人： Kevin Pohlman
摘要： A cleaning system (100) including a body (105), a motor (140) supported by the body (100), a sensor (325) configured to sense a characteristic of the motor (140), the characteristic selected from a group consisting of current, voltage, and power. The system (100) further includes a controller (305). The controller (305) is connected to the motor 140 and the sensor (325). The controller (305) includes an electronic processor (330) and a memory (335). The controller (305) is configured to receive, from the sensor (325), a signal indicative of the characteristic of the motor (140), determine, based on the signal, an integral of the signal over time, and operate the motor (140) based on the integral of the signal over time.
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公开(公告)号：US11172801B2
公开(公告)日：2021-11-16
申请号：US17132079
申请日：2020-12-23
发明人： Kevin Pohlman , Rafael Davila , Nicholas DeBlasio
IPC分类号： A47L9/28
摘要： A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.
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公开(公告)号：US20220071463A1
公开(公告)日：2022-03-10
申请号：US17526983
申请日：2021-11-15
发明人： Kevin Pohlman , Rafael Davila , Nicholas DeBlasio
IPC分类号： A47L9/28
摘要： A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.
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公开(公告)号：US20210204780A1
公开(公告)日：2021-07-08
申请号：US17132079
申请日：2020-12-23
发明人： Kevin Pohlman , Rafael Davila , Nicholas DeBlasio
IPC分类号： A47L9/28
摘要： A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.
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