Pumps – Miscellaneous
Reexamination Certificate
2005-09-27
2005-09-27
Tyler, Cheryl J. (Department: 3746)
Pumps
Miscellaneous
C417S454000, C417S423400, C417S440000, C138S118000
Reexamination Certificate
active
06948921
ABSTRACT:
A vacuum pump (1, 30) has an inlet (5) and an outlet (6). Plug-in screw fittings (9) are connected with the inlet and the outlet. The plug-in screw fittings include a bore with an internal bevel (22) that receives a flexible connecting line (23), a chuck collet (19), and an O-ring (21) frictionally in a vacuum-tight relationship. In this manner, a more simple and versatile connection is provided between the vacuum pump and the connecting lines.
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Boy Hermann
Hölzer Rainer
Fay Sharpe Fagan Minnich & McKee LLP
Leybold Vakuum GmbH
Sayoc Emmanuel
Tyler Cheryl J.
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