Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1974-12-02
1976-06-15
Feldman, Peter
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
15345, 15420, 134 37, A47L 514
Patent
active
039635155
ABSTRACT:
A new vacuum cleaning nozzle described includes a conventional vacuum cleaner suction nozzle typically used for cleaning streets or carpets and in addition short airfoils at incidence or vortex generating air nozzles supported from the nozzle and directed downward ahead of the suction nozzle to form a series of vortices for providing very high local velocities effective in dislodging debris while avoiding propelling the particles dislodged far from the suction zone.
REFERENCES:
patent: 1992238 (1935-02-01), Rose
patent: 2027543 (1936-01-01), Lofgren
patent: 3075227 (1963-01-01), Bowles
Covert Eugene E.
Haldeman Charles W.
Feldman Peter
Hieken Charles
Massachusetts Institute of Technology
Moore C. K.
Santa Martin M.
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