US 11,654,452 B2
Apparatuses and methods using high pressure dual check valve
Jocemar Ramina, Lexington, MA (US); Marco G. Catalani, Burlington, MA (US); John M. Bernard, Stoughton, MA (US); Michael P. Ratigan, Scituate, RI (US); and David G. Harney, Stoneham, MA (US)
Assigned to MICROFLUIDICS INTERNATIONAL CORPORATION, Westwood, MA (US)
Filed by MICROFLUIDICS INTERNATIONAL CORPORATION, Westwood, MA (US)
Filed on Aug. 16, 2021, as Appl. No. 17/403,152.
Application 17/403,152 is a continuation of application No. 15/872,332, filed on Jan. 16, 2018, granted, now 11,090,680.
Claims priority of provisional application 62/447,070, filed on Jan. 17, 2017.
Prior Publication US 2021/0370346 A1, Dec. 2, 2021
Int. Cl. F16K 15/04 (2006.01); B05C 17/005 (2006.01); B05C 21/00 (2006.01); F16K 11/10 (2006.01)
CPC B05C 17/00553 (2013.01) [B05C 17/00576 (2013.01); B05C 21/00 (2013.01); F16K 11/105 (2013.01); F16K 15/042 (2013.01); F16K 15/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of repairing a high pressure processing device including a body having a first surface with a first recess and a second surface with a second recess, a first subassembly inserted into the first recess and a second subassembly inserted into the second recess, the first subassembly including a first plug configured to form a one-way valve in combination with a first valve seat, the second subassembly including a second plug configured to form a one-way valve in combination with a second valve seat, and a third removable subassembly coupling the body to a fluid driving mechanism via a threaded connection, wherein the fluid driving mechanism is a pressure pump including a piston housing and a piston actuatable within an inner compartment of the piston housing, the method comprising:
removing one of the first subassembly and second subassembly from the body independently of the other of the first subassembly and second subassembly and independently of the third subassembly;
replacing a part of the removed first subassembly or second subassembly; and
reattaching the removed first subassembly or second subassembly that includes the replacement part.