Mechanical pumps

Details Mechanical pumps Mechanical pumps

2005-09-13

2005-09-13

Freay, Charles G. (Department: 3746)

Pumps

With muffler acting on pump fluid

C417S572000

Reexamination Certificate

active

06942466

ABSTRACT:
A mechanical pump having an inlet and spaced therefrom an outlet for the passage of fluid therethrough and incorporating at least one flame arrester.

REFERENCES:
patent: 3338223 (1967-08-01), Williams
patent: 3496538 (1970-02-01), Christiaan Johannes Van Dalen
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patent: 5156536 (1992-10-01), Wilson
patent: 5344313 (1994-09-01), Johnsen, Jr.
patent: 5752812 (1998-05-01), Brown
patent: 549086 (1993-06-01), None
patent: 0 549 086 (1993-06-01), None
patent: WO-97/32130 (1997-09-01), None
patent: 562 907 (1944-07-01), None
patent: 565 271 (1944-11-01), None
patent: 834 689 (1960-05-01), None
UK Patent Office Search Report dated Mar. 15, 2002.

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