Diaphragm-type process pump for transferring various fluids by moving a diaphragm with compressed air

- SMC Corporation
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Description

FIG. 1 is a front view.

FIG. 2 is a rear view.

FIG. 3 is a plan view.

FIG. 4 is a right-hand side view.

FIG. 5 is a left-hand side view.

FIG. 6 is a sectional view taken along the line 6—6, in which illustration of the internal mechanism is partly omitted; and,

FIG. 7 is a reference perspective view.

A bottom view is omitted because it is in symmetry with the plan view.

Claims

An ornamental design for a diaphragm-type process pump for transferring various fluids by moving a diaphragm with compressed air, as shown and described.

Referenced Cited
U.S. Patent Documents
D338018 August 3, 1993 Willinger et al.
D374075 September 24, 1996 Lee
D387067 December 2, 1997 Gaffney
D426553 June 13, 2000 Jack et al.
D428422 July 18, 2000 Wang
D436360 January 16, 2001 Murayama
D436361 January 16, 2001 Yu-Chin
D436968 January 30, 2001 Cook
D439341 March 20, 2001 Tumey et al.
D454885 March 26, 2002 Murayama et al.
Patent History
Patent number: D471917
Type: Grant
Filed: Nov 14, 2001
Date of Patent: Mar 18, 2003
Assignee: SMC Corporation (Tokyo)
Inventors: Tsuyoshi Kagami (Yawara-mura), Tomoyuki Iwata (Yawara-mura)
Primary Examiner: Ralf Seifert
Attorney, Agent or Law Firm: Baker Botts L.L.P.
Application Number: 29/150,465
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)
International Classification: 1502;