Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages
Reexamination Certificate
2004-09-08
2009-02-10
Barr, Michael (Department: 1792)
Cleaning and liquid contact with solids
Apparatus
For work having hollows or passages
C134S104200, C134S201000, C134S192000
Reexamination Certificate
active
07487786
ABSTRACT:
A lift mechanism for a cleaning device of a dry shaving apparatus includes a base plate with guides and a chassis plate mounting the chassis and arranged for displacement relative to the base plate. Coiled-strip springs arranged on the guides spring-load the chassis plate against the base plate. On actuation of the lift mechanism the coiled-strip springs are untensioned by coiling up along the guides, thereby lifting the chassis plate. The coiled-strip springs reduce the load on the construction and ensure an almost noiseless lift mechanism.
REFERENCES:
patent: 3822874 (1974-07-01), Snyder et al.
patent: 5649556 (1997-07-01), Braun
patent: 7107692 (2006-09-01), Kappes et al.
patent: 44 02 237 (1995-09-01), None
Höser Jürgen
Kappes Diana
Krumnikl Svatopluk
Larscheid Andreas
Ludäscher Uwe
Barr Michael
Braun GmbH
Fish & Richardson P.C.
Heckert Jason
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