Valve cover locking system
First Claim
1. A valve cover locking screw assembly for a reciprocating pump module block having a bore, which assembly comprises:
- a removable valve cover closing said bore, and a valve cover locking ring with internal threads surrounding said bore;
a valve cover locking screw having cylindrical walls with external threads, a closed top, and an open bottom;
a plurality of threaded bolts engaging a plurality of threaded openings through said closed top and through said cylindrical walls of said locking screw so that said plurality of bolts forces said valve cover against said module block to create a fluid tight seal; and
a plurality of removable fasteners between said locking ring and said module block to secure said locking ring to said module block.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method to assemble and disassemble a valve cover locking screw assembly for a reciprocating pump module block. The module block has a bore, a removable valve cover closing the bore, and a valve cover locking ring securable to the block and surrounding the bore with internal threads. A valve cover locking screw has cylindrical walls with external threads, a closed top, and an open bottom. A plurality of threaded bolts engage a plurality of threaded openings through the cylindrical walls of the locking screw so that the bolts force the valve cover against the module block thereby creating a fluid tight seal.
75 Citations
13 Claims
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1. A valve cover locking screw assembly for a reciprocating pump module block having a bore, which assembly comprises:
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a removable valve cover closing said bore, and a valve cover locking ring with internal threads surrounding said bore; a valve cover locking screw having cylindrical walls with external threads, a closed top, and an open bottom; a plurality of threaded bolts engaging a plurality of threaded openings through said closed top and through said cylindrical walls of said locking screw so that said plurality of bolts forces said valve cover against said module block to create a fluid tight seal; and a plurality of removable fasteners between said locking ring and said module block to secure said locking ring to said module block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method to secure and seal a valve cover to a module block for a reciprocating pump, which method comprises:
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inserting a removable valve cover through a valve cover locking ring secured to said module block over bore in said module block, wherein said valve cover locking ring is secured to said module block by removable fasteners; threading a valve cover locking screw having cylindrical walls with external threads, a closed top, and an open bottom, in to said locking ring so that internal threads on said locking ring mate with said external threads of said locking screw; and threading a plurality of bolts through threaded openings in said closed top and through said cylindrical walls of said locking screw so that said bolts force said valve cover against said module block. - View Dependent Claims (10, 11, 12, 13)
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Specification