Method of fabricating planar spring clearance seal compressors

Details Method of fabricating planar spring clearance seal compressors Method of fabricating planar spring clearance seal compressors

2006-08-21

2011-10-04

Chang, Richard (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S898020, C029S898090, C029S446000, C060S520000, C417S053000, C417S044100, C417S413100, C417S415000, C417S045000

Reexamination Certificate

active

08028409

ABSTRACT:
In accordance with the method, a gas bearing is energized to center the piston in the cylinder prior to rigidly attaching the planar spring or springs between the piston and the compressor frame. This automatically and very accurately centers the piston in the cylinder to provide the added stiffness of a planar spring and gas bearing in an easily manufactured configuration. Various exemplary embodiments are disclosed, including embodiments having the piston cantilevered from one end using a single or multiple springs, an embodiment having a spring on each end of the piston, a double piston embodiment and embodiments using and not using the gas bearing during operation of the compressors.

REFERENCES:
patent: 4350012 (1982-09-01), Folsom et al.
patent: 5525845 (1996-06-01), Beale et al.
patent: 6293184 (2001-09-01), Unger
patent: 6514047 (2003-02-01), Burr et al.
patent: 2005/0022662 (2005-02-01), Wiseman et al.
patent: 1 450 472 (2004-08-01), None
patent: WO-2006/069883 (2006-07-01), None
International Search Report and Written Opinion of the International Searching Authority Dated Oct. 26, 2007, International Application No. PCT/US2007/005356.

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