Expansible chamber devices – With assembly or disassembly facilitating means
Reexamination Certificate
2005-01-04
2005-01-04
Lazo, Thomas E. (Department: 3745)
Expansible chamber devices
With assembly or disassembly facilitating means
C092S255000
Reexamination Certificate
active
06837144
ABSTRACT:
A piston and cylinder unit includes a housing, a piston and a piston rod. The piston rod has an outer surface being designed to be symmetrical with respect to a first axis. The piston rod includes a protrusion and an outer thread being located on the protrusion. The protrusion and the outer thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a first eccentricity of the piston rod. The piston is located in the housing. The piston has an outer surface being designed to be symmetrical with respect to a first axis. The piston includes at least one seal, at least one guiding element, an opening and an inner thread being located in the opening. The opening and the inner thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a second eccentricity of the piston. The first eccentricity of the piston rod is substantially identical to the second eccentricity of the piston such that the inner thread of the piston can engage the outer thread of the piston rod to reach an angle position in which the first axis of the piston rod is aligned to the first axis of the piston.
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Hyco Pacoma GmbH
Lazo Thomas E.
Thomas Kayden Horstemeyer & Risley LLP
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