Lyle C Ryder

US Patent:

41138252, Sep 12, 1978

Filed:

Sep 12, 1976

Appl. No.:

5/719696

Inventors:

Robert W. Hill - Sussex NJ
William G. Onnen - Newton NJ
Lyle C. Ryder - Rockaway NJ

Assignee:

Ames Rubber Corporation - Hamburg NJ

International Classification:

B29D 302
B29G 700

US Classification:

264262

Abstract:

In a fuser roll for electrostatic copying machines comprising a cylindrical metal core surrounded by a cylindrical body of elastomeric material having an outside cylindrical sleeve of protective material, the end surfaces of the elastomeric material are protected from the deleterious effects of silicone fluid by sealing rings of elastomeric material such as fluorosilicone which is resistant thereto. The rings, which are rectangular in cross section and are made of uncured, deformable material, are inserted in the ends of the sleeve with the ends of the sleeve protruding. The sleeve is assembled with the metal core and placed in a cylindrical mold. Silicone rubber is injected into the space between the core and the sleeve and the sleeve and rings are expanded into contact with the mold wall. The roll is then cured. In the finished cured rolls, the rings are bonded to the end surfaces of the silicone rubber body, and to the metal core, and to the interior cylindrical surfaces of the sleeve over an area of substantial width.

US Patent:

40993124, Jul 11, 1978

Filed:

Mar 17, 1977

Appl. No.:

5/778581

Inventors:

Robert W. Hill - Sussex NJ
William G. Onnen - Newton NJ
Lyle C. Ryder - Rockaway NJ

Assignee:

Ames Rubber Corporation - Hamburg NJ

International Classification:

B21B 3108

US Classification:

29130

Abstract:

In a fuser roll for electrostatic copying machines comprising a cylindrical metal core surrounded by a cylindrical body of elastomeric material having an outside cylindrical sleeve of protective material, the end surfaces of the elastomeric material are protected from the deleterious effects of silicone fluid by sealing rings of elastomeric material such as fluorosilicone which is resistant thereto. The rings, which are rectangular in cross section and are made of uncured, deformable material, are inserted in the ends of the sleeve with the ends of the sleeve protruding. The sleeve is assembled with the metal core and placed in a cylindrical mold. Silicone rubber is injected into the space between the core and the sleeve and the sleeve and rings are expanded into contact with the mold wall. The roll is then cured. In the finished cured rolls, the rings are bonded to the end surfaces of the silicone rubber body, and to the interior cylindrical surfaces of the sleeve over an area of substantial width.