Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Reexamination Certificate
2006-05-24
2010-10-12
Rodriguez, Pam (Department: 3657)
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
C366S124000, C092S163000
Reexamination Certificate
active
07810618
ABSTRACT:
The invention relates to a vibration generator comprising a working piston and to a construction apparatus having a vibration generator, wherein the vibration generator is operated by a pressure fluid and comprises a control device having a control piston, which is supported in a displaceable manner inside the working piston.
REFERENCES:
patent: 4026193 (1977-05-01), Olmsted
patent: 4031812 (1977-06-01), Koshelev
patent: 5095809 (1992-03-01), Kroger
patent: 920158 (1963-03-01), None
patent: 3838639 (1990-05-01), None
patent: 2004009298 (2004-01-01), None
European Search Report, Application No. EP 05 01 1642, Dated Jan. 26, 2006.
Hagemeyer Carl
Weber Hans-Jürgen
Hoffman Warnick LLC
Klemm Bohrtechnik
Merecki John A.
Rodriguez Pam
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