Invention Grant
- Patent Title: Back pressure relief motor control for a non-bleeder turbine style HVLP spray gun
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Application No.: US14209571Application Date: 2014-03-13
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Publication No.: US09599117B2Publication Date: 2017-03-21
- Inventor: John A. Darroch
- Applicant: John A. Darroch
- Agency: Hackler Daghighian Martino & Novak
- Main IPC: F04D27/00
- IPC: F04D27/00 ; B05B7/00 ; B05B7/24

Abstract:
A high volume low pressure (HVLP) turbine assembly includes a housing having a turbine which includes a turbine fan rotatable within a turbine casing. A microcontroller is disposed within the housing, where the microcontroller controls a speed of an electric motor powering the turbine fan. A pressure sensor and an airflow sensing means is in airflow communication with a turbine air outlet. The HVLP turbine assembly does not have a bleeder port in airflow communication with the turbine air outlet. Rather, the microcontroller is configured to reduce the speed of the electric motor to an idle speed after a predetermined time has elapsed, wherein the predetermined time is started when the airflow sensing means indicates a period of inactivity.
Public/Granted literature
- US20140271230A1 BACK PRESSURE RELIEF MOTOR CONTROL FOR A NON-BLEEDER TURBINE STYLE HVLP SPRAY GUN Public/Granted day:2014-09-18
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