A valve actuator
作者： Michael Pidgeon
DOI:
关键词: Solar power 、 Valve actuator 、 Materials science 、 Mechanical engineering
摘要: This invention provides a valve actuator comprising solar power unit (13), motor (14) and actuating member (28), the being connected to an electrical supply from (12) operable drive (28) which is arranged periodically open close valve. Preferably also comprises fan (34) disperses air freshener aerosol upon opening of (30).
lens.org 参考文章(2)
Bell John James, Improvements in spray producers ,(1967)
Logan James E, Goldsholl Morton, Method of Intermittently Dispensing an Aerosol Product ,(1969)