Joe H Walker

US Patent:

20150028006, Jan 29, 2015

Filed:

Jul 29, 2013

Appl. No.:

13/953280

Inventors:

- Blue Springs MO, US
Joe Walker - Kansas City MO, US
Michael D. Krebill - Lee's Summit MO, US

Assignee:

Fike Corporation - Blue Springs MO

International Classification:

B23K 26/36
F16K 17/16

US Classification:

21912169

Abstract:

Methods of creating various laser-defined control structures on pressure relief devices are provided that utilize a laser having a field of view that is smaller than the overall dimensions of the laser-defined structure to be milled into the pressure relief device. The methods generally involve partitioning the working surface of the device into a plurality of tiles within which a particular segment of the control structure will be milled. Upon milling of a control structure segment in one tile, the pressure relief device and/or laser is repositioned so that a control structure segment in another tile may be created.

US Patent:

20140238984, Aug 28, 2014

Filed:

Feb 28, 2013

Appl. No.:

13/780729

Inventors:

- Blue Springs MO, US
Joe Walker - Kansas City MO, US

Assignee:

FIKE CORPORATION - Blue Springs MO

International Classification:

F16K 17/16
B23K 26/38

US Classification:

220 892, 21912172

Abstract:

A rupture disc () is provided comprising a line of opening () formed in at least one face thereof. The line of opening () is formed by laser machining of the disc's face and includes at least one disc opening control feature (). The disc opening control feature () may be an opening-initiation feature configured to assist with initial rupture of the disc (). Alternatively, the opening control feature () may be an anti-fragmentation feature configured to dissipate the energy acting upon the disc () so as to prevent separation of the petal formed upon opening of the disc.