Paul M Sweet Deceased202 Lincoln Park Dr, Syracuse, NY 13203

5915920, Jun 29, 1999

Aug 6, 1997

8/907168

Paul W. Sweet - Clay NY

Carrier Corporation - Syracuse NY

F04D 2946

415150

A roller positioning system for use in a variable pipe diffuser having inner and outer rings. The roller positioning system having at least three axle shafts having a cylindrical body positioned about a first centerline and having a bore disposed axially therethrough about a second centerline. A roller bearing is rotatably mounted to the body of each of the at least three axle shafts. The at least three axle shafts also having a pair of shoulders positioned on either side of the body concentric about the second centerline. The at least three axle shafts circumferentially disposed in the outer ring about the shoulders in a diameter such that the roller bearings nearly contact the outside diameter of the inner ring. The at least three axle shafts rotatably operable to effect an adjustment of the roller bearings about the second centerline such that the roller bearings are brought into contact with the inner ring.

5927720, Jul 27, 1999

Nov 3, 1997

8/963380

Thomas M. Zinsmeyer - Pennellville NY
Paul W. Sweet - Clay NY

Carrier Corporation - Syracuse NY

F16J 15447

277303

In order to accommodate a labyrinth seal whose diameter is too large to form a gas passage using conventional techniques, the labyrinth seal is made in two parts. A first part is an inner ring whose outer diameter is sufficiently small so as to permit the forming of a passage therein with conventional techniques. The second part is an outer ring which can then be fastened to the inner ring so as to then extend, in combination, to the radial extent necessary to complete the sealing engagement with an adjacent element. The outer and inner rings are preferably interconnected by way of an interference fit.