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| Synthetic grass playing field surface |
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| Process of laying synthetic grass |
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| Synthetic turf |
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| Synthetic turf game surface |
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| Method of making a ceramic capacitor |
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Method and apparatus for forming a rupture disk
| Details |
Inventors: Cullinane, Donall; Daly, John; Farwell, Stephen; Klein, Greg; Lowe, Barry; Rooker, Mitch; Tomasko, John; Brazier, Geof;
Assignee: BS&B Safety Systems, Inc. (Tulsa, OK)
Primary Examiner: Tolan; Ed
Assistant Examiner:
Attorney, Agent or Firm: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
An improved rupture disk assembly and methods and apparatuses for forming a rupture disk are disclosed. The rupture disk assembly includes a rupture disk having a flange connected to a dome-shaped rupturable portion by a transition area. The rupturable portion includes a structural apex formation at or near the apex of the dome and is configured to rupture when exposed to a fluid having a predetermined pressure. Preferably, a safety member is disposed adjacent the rupture disk. The safety member includes a hinge about which the disk bends when the disk ruptures. The present invention is also directed to an apparatus and method for consistently, accurately, and repeatably forming a structural apex formation in a rupture disk before the formation of the rupture disk dome, during the formation of the rupture disk dome, and after the formation of the rupture disk dome. |
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DETAILED DESCRIPTION Accordingly, the present invention is directed to a pressure relief assembly that obviates one or more of the limitations and disadvantages of prior art pressure relief assemblies.
The advantages and purposes of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The advantages and purposes of the invention will be realized and attained by the elements and combinations particularly pointed out in the appended claims.
To attain the advantages and in accordance with the purposes of the invention, as embodied and broadly described herein, the invention is directed to an apparatus for indenting a rupture disk that includes an annular flange and a rupturable portion having a domed shape.
The apparatus includes a first member and a second member.
The first member has an opening and is configured to engage a first side of the rupturable portion of the rupture disk.
The second member is disposed on a second side of the rupturable portion of the rupture disk and is aligned with the opening in the first member.
The second member engages the rupturable portion at or near the apex of the domed shape and displaces a section of the rupturable portion relative to the first member to thereby create an indentation in the rupturable portion at or near the apex of the domed shape.
In another aspect, the present invention is directed to a method of forming an indentation in a rupture disk that includes an annular flange and a rupturable portion having a domed shape.
According to the method, a first side of the rupturable portion is supported with a first member having an opening.
A second member aligned with the opening in the first member is engaged with a second side of the rupturable portion at or near the apex of the domed shape to displace a section of the rupturable portion relative to the first member and thereby create an indentation at or near the apex of the rupturable portion of the rupture disk
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Metal Working 
