Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2006-03-14
2006-03-14
Snider, Theresa T. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S314000, C285S007000, C285S302000, C055SDIG007
Reexamination Certificate
active
07010829
ABSTRACT:
A retractable hose central vacuum cleaning system comprising a retractable vacuum hose configured to retract through a valve assembly, into a system vacuum pipe responsive to the vacuum communicated from a vacuum source. The valve assembly comprising a static valve seal adapted for coupling a system vacuum pipe to the vacuum hose to create a substantially air-tight sealed communication between the system vacuum pipe and the vacuum hose. The static valve seal being adjustable from a first unsealed configuration where the vacuum hose can move freely through the valve assembly and system vacuum pipe, to a second sealed configuration where the vacuum hose is in sealed communication with a system vacuum pipe, and where the vacuum hose is substantially fixed in relative position to the valve assembly. Wherein movement from first configuration to the second configuration locks the vacuum hose in place relative to the valve assembly.
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Drivstuen Gary
Drivstuen Rod
Harman James Roger
Forster William
Snider Theresa T.
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