Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1981-04-30
1983-12-13
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 99, 34100, 55179, F26B 2108
Patent
active
044198353
ABSTRACT:
A hair dryer has first and second air passage desiccant bed ducts with inlets communicating with an inlet air plenum and outlets communicating with an outlet plenum having a restricted dry air outlet. A plurality of longitudinally spaced porous baffles, each containing a water adsorbent desiccant material mounted within each duct. A first movable closure in the inlet plenum in a first position directs air through the first duct for circuitous passage through the baffles to the outlet plenum for delivery of dried air through its air outlet. Opposed exhaust air outlets on the inlet plenum communicate with the inlets of the ducts. One closure of a pair of pivotal outlet closures in a first position normally closes the exhaust outlet at one duct in the inlet plenums the other closure in its first position being normally open and adapted in a second position to close the exhaust outlet at the other duct in the inlet plenum. The closures are interconnected for movement in unison between first and second positions. A portion of the dry air in the outlet plenum passes into the outlet of the second duct for dehydrating and regenerating the desiccant within the baffles therein, the air exhausting through one exhaust inlet in the inlet plenum to atmosphere. An intermittently operable timer controlled solenoid is connected to one closure for moving all of the closures simultaneously to a second position whereby ambient air is directed by the first closure to the second duct for passage therethrough and entry into the outlet plenum for passage through the dry air outlet, with some of the dry air returning in the opposite direction through the outlet of the first air passage duct for dehydrating and regenerating the desiccant material within the baffles therein, the air exhausting through the other exhaust outlet in the inlet plenum to atmosphere.
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patent: 2563042 (1951-08-01), Jaubert
patent: 2735507 (1956-02-01), Vogel
patent: 2738592 (1956-03-01), Stanley
patent: 2773313 (1956-12-01), O'Connor
patent: 3304623 (1967-02-01), Reiss et al.
patent: 3513631 (1970-05-01), Seibert et al.
patent: 3803724 (1974-04-01), Bombich
H.D. Research Company
Schwartz Larry I.
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