Pumps – Ambulant – body supported – or with carrying handle
Patent
1979-07-27
1980-12-16
Smith, Leonard E.
Pumps
Ambulant, body supported, or with carrying handle
415126, 415219R, 417361, 417423R, 417424, 2481886, 2481888, 248588, 248645, 248677, 403 61, F04B 2100, F16M 1138
Patent
active
042394597
ABSTRACT:
Method and apparatus for improving building heating and cooling, wherein relatively cooler air is circulated upwardly from adjacent the floor of a room or other space. The upwardly projected relatively cooler air displaces relatively warmer air from the upper part of the room or space, and the warmer air is displaced to a lower level, thereby tending to equalize the air temperatures at different levels of the room or space. The apparatus used for air circulation is adapted for use also in periods when cooling is required, as in summer, in a disposition to propel air horizontally. The apparatus structure includes adjustable legs permitting use of the fan or blower in dual positions.
REFERENCES:
patent: 977921 (1910-12-01), Zizinia
patent: 2325754 (1943-08-01), Ebert
patent: 2633293 (1953-03-01), Jones
patent: 2667301 (1954-01-01), Lautner
patent: 2772845 (1956-12-01), Conant
patent: 3259432 (1966-07-01), Jackson
patent: 3635432 (1972-01-01), Hollander
patent: 3870263 (1975-03-01), Hardiman et al.
Fox, Jr. Carl B.
Smith Leonard E.
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