Surface cleaning with cleaning fluid supply shape memory...

Details Surface cleaning with cleaning fluid supply shape memory... Surface cleaning with cleaning fluid supply shape memory...

2008-12-30

2010-02-09

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

Reexamination Certificate

active

07657965

ABSTRACT:
A surface cleaning apparatus comprises a fluid delivery system including a supply of cleaning fluid and a fluid recovery system for drawing dirty cleaning fluid from the surface to be cleaned. The apparatus can comprise a passageway that passes heated motor cooling air in heat exchange with the cleaning fluid to heat the cleaning fluid. The apparatus can further comprise a mixing manifold that mixes first and second cleaning fluids at different concentrations for different cleaning modes. The apparatus can further comprise a fluid valve having a shape memory alloy actuator.

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