Patent ID: 7074020
Filing Date: 2006-07-11
Classification: F04B,Y10T

Abstract:
1. A high-speed, high-pressure sanitary pump machine comprising: (a) a cylinder housing having removeably sealable ends; (b) a removable piston provided in said cylinder housing, said piston including a drive shaft having a piston head connected at a first end thereof, said removable piston being removeably mounted to said cylinder housing through a seal in at least one of said removeably sealable ends, wherein motion of said piston head within said cylinder is positively controlled by said drive shaft to positively maintain control over fluids entering and exiting said sanitary pump machine; (c) a first inlet port and a first outlet port disposed on one side of said piston head; (d) a second inlet port and a second outlet port disposed on the other side of said piston head; (e) a check valve having a valve stem guide and a valve seat guide disposed in said first inlet port and said first outlet port and in said second inlet port and said second outlet port; and (f) adjustment means provided at a second end of said drive shaft for adjusting the stroke of said piston in said cylinder housing.