Tank piston seal and stabilizing system

Details Tank piston seal and stabilizing system Tank piston seal and stabilizing system

2007-01-09

2007-01-09

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

Piston

Radially adjustable side wall portion

C222S389000

Reexamination Certificate

active

11246805

ABSTRACT:
An improved seal and stabilizing system for a piston head in a tank cylinder provides a better mechanism for discharging and wiping a cylinder when heavy liquids such as chocolate or peanut butter are being dispensed. The seal system now includes a free-floating block inside the seal and grooves in the inner lower part of the hollow seal. The block and grooves keep the upper, outer part of the seal from deforming away from the inner surface of the cylinder that facilitates complete discharging and wiping of the material from the cylinder tank. The tensioning mechanism of the seal is made from a unitary and annular ring T-ring that easily slides on the rear surface of the piston head. In order to stabilize the movement of the piston head down the cylinder, clockwise and counterclockwise springs are provided for the stabilizing shoes. The dual spring arrangement prevents coil binding of the springs. The springs and stabilizing shoes maintain the piston head cross section parallel to the cross section of the cylinder.

REFERENCES:
patent: 4721235 (1988-01-01), Watson
patent: 5114054 (1992-05-01), Watson
patent: 5341726 (1994-08-01), Watson
patent: 5746112 (1998-05-01), Watson
patent: 6027123 (2000-02-01), Berry et al.
patent: 6325384 (2001-12-01), Berry et al.
patent: 6916025 (2005-07-01), Brisson

Affiliated with

Also associated with

Rating

Tank piston seal and stabilizing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tank piston seal and stabilizing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tank piston seal and stabilizing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3737241