Air diffuser for a mechanically sealed pump - Weir Minerals Australia, Ltd.

Title:

Air diffuser for a mechanically sealed pump

United States Patent D654508

Inventors:

Foreman, Michael Christopher (Artarmon, AU)

Application Number:

D/307707

Publication Date:

02/21/2012

Filing Date:

05/06/2008

Export Citation:

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Assignee:

Weir Minerals Australia, Ltd. (AU)

Primary Class:

D15/7

International Classes:

(IPC1-7): 1502

Field of Search:

D15/7-9, D23/231, D23/232, D23/225, D13/128, 415/211.2, 415/111, 415/170.1, 415/110, 415/106, 415/198.1, 415/208.2, 417/410.1, 417/359, 417/415, 417/416, 417/234, 417/321, 417/265, 417/405

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US Patent References:

D631065	Impeller	January, 2011	Burgess et al.	D15/9
D631066	Seal for a rotary shaft	January, 2011	Itadani et al.	D15/9
D614524	Pump coupling	April, 2010	McAlpine et al.	D15/7
D609249	Pump intake component	February, 2010	Foreman et al.	D15/7
D608677	Pump liner component	January, 2010	Glaves et al.	D15/7
D603878	Scroll member for scroll compressor	November, 2009	Chu	D15/9
7607884	Centrifugal pump with mechanical seal arrangement	October, 2009	Cohen	415/121.1
D582437	Seal for a rotary shaft	December, 2008	Shimomura et al.	D15/7
D582438	Seal for a rotary shaft	December, 2008	Shimomura et al.	D15/7
D582439	Seal for a rotary shaft	December, 2008	Shimomura et al.	D15/7
D582440	Seal for a rotary shaft	December, 2008	Shimomura et al.	D15/7
D570374	Seal for a rotary shaft	June, 2008	Hideki et al.	D15/7
D570375	Seal for a rotary shaft	June, 2008	Hideki et al.	D15/7
20060280631	Centrifugal pump	December, 2006	Tsai et al.
20050141988	Centrifugal fan diffuser	June, 2005	Hustvedt et al.	415/1
6280139	Radial split diffuser	August, 2001	Romani et al.	415/207
6074554	Aeration system	June, 2000	Ray et al.	210/194
6074166	Pump	June, 2000	Moddemeijer	415/109
5489187	Impeller pump with vaned backplate for clearing debris	February, 1996	Ray	415/111
5195867	Slurry pump shaft seal flushing	March, 1993	Stirling	415/111
5133638	Centrifugal pump diffuser ring assembly	July, 1992	Mosure	415/168.1
5076757	High head centrifugal slicing slurry pump	December, 1991	Dorsch	415/110
4750872	Centrifugal pump with damped motor connection	June, 1988	Palliser	417/423.11
4597530	Fluid diffuser	July, 1986	Goudy et al.	239/452
D284604	Air control apparatus	July, 1986	Mathis	D23/260
4586872	Centrifugal pump	May, 1986	Corzilius et al.	415/214.1
4527947	Seal-free impeller pump for fluids containing abrasive materials or the like	July, 1985	Elliott	415/121.1

Foreign References:

DE3412-774	October, 1985
DE3914-652	November, 1990
JP2005021806	January, 2005	WET TYPE FLUE GAS DESULFURIZATION APPARATUS
WO/2006/116792	November, 2006	AIR DIFFUSER SYSTEM FOR INDUSTRIAL PUMPS

Primary Examiner:

Goodwin, Mark

Attorney, Agent or Firm:

Morris O'Bryant Compagni

Claims:

CLAIM

1. The ornamental design for an air diffuser for a mechanically sealed pump, as shown and described.

Description:

FIG. 1 is a rear perspective view of an air diffuser for a mechanically sealed pump showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a front elevation view thereof; and,

FIG. 6 is a rear perspective view of a second embodiment of an air diffuser for a mechanically sealed pump showing my new design, the remaining views being the same as FIGS. 3-5.