Sealing ring assembly for a single sealing ring piston

• US 5,921,553 A
• Filed: 09/02/1997
• Issued: 07/13/1999
• Est. Priority Date: 09/02/1997
• Status: Expired due to Fees

• Current Assignee: Thomas G. Klein
• Original Assignee: Thomas G. Klein
• Inventors: Klein, Thomas G.
• Primary Examiner(s): Reichard, Lynne A.
• Assistant Examiner(s): BINDA, GREGORY JOHN
• Application Number:
  US08/926,076
• Time in Patent Office: 679 Days
• Field of Search: 277/434, 277/435, 277/459, 277/460, 277/489, 277/491, 277/492, 277/496, 277/497, 277/905, 277/FOR 121, 277/FOR 233
• US Class Current: 277/492
• CPC Class Codes: F16J 9/16 obtained by stacking of rings

Abstract

A sealing ring assembly for installation in a single sealing ring groove of a piston that is for use in an internal combustion engine, hydraulic cylinder piston, or the like, and replaces the top and second ring seals as are presently utilized, which sealing ring assembly is for curtailing leakage between the piston outer surface and surface of a cylinder containing the piston. The sealing ring assembly consists of a first, primary or main ring that is for fitting in a piston sealing ring groove and is cut back along top and bottom surfaces to provide slots that are each receive a flat rail fitted therein, with the assembly to be contained within the sealing ring groove. The sealing ring assembly can be manufactured in various widths from one quarter (1/4) inch to one (1) millimeter, and the first, primary or main ring preferably has an end gap cut formed at a ninety (90) degree angle thereacross, and the rails preferably each have an end gap cut formed at a forty-five (45) degree angle thereacross.

Claims

1. A sealing ring assembly for fitting in a sealing ring groove of a piston comprising, a first, primary or main ring having a diameter to fit in a piston sealing ring groove, and includes a ninety (90) degree end gap cut and is cut back along top and bottom surfaces to form equal slots having a uniform width therebetween that are for receiving, respectively, top and bottom rails;

and a pair of interchangeable flat rails that are each identically formed to fit, respectively, in either one of said equal slots formed in said first, primary or main ring and alongside opposing parallel surfaces of said piston sealing ring groove, forming a piston sealing ring having a uniform width along its length with each said rail having parallel opposite faces and including a like forty-five (45) degree end gap cut.

2. A sealing ring assembly as recited in claim 1, wherein the sealing ring assembly has a width from one quarter (1/4) inch to one (1) millimeter.

3. A sealing ring assembly as recited in claim 1, wherein the first, primary or main ring is formed from metal.

4. A sealing ring assembly as recited in claim 3, wherein the metal used in a manufacture of the first, primary or main ring is a cast, forged or billet steel.

5. A sealing ring assembly as recited in claim 1, wherein the rails are formed from a like material.

6. A sealing ring assembly as recited in claim 5, wherein the rails are each formed from a metal.

7. A sealing ring assembly as recited in claim 6, wherein the metal used in the manufacture of the individual rails is a cast, forged or billet steel.