Samuel D Webb

US Patent:

44051379, Sep 20, 1983

Filed:

Oct 29, 1982

Appl. No.:

6/437563

Inventors:

Samuel B. Webb - Naperville IL

International Classification:

F16J 1532
F27B 724

US Classification:

277153

Abstract:

A rotary seal seals a large, high temperature rotary drum to a stationary hood where the drum is mounted for rotation with respect to said hood. The seal is formed of a series of overlapping leaves of resilient metal disposed successively to encircle the drum surface, each leaf having an inner surface and an outer surface and a mounting end and a sealing end, with the mounting end affixed to the stationary hood, and the sealing end disposed at the drum surface with the outer surface concave. Each leaf extends obliquely at a substantial angle relative to an axial plane therethrough so that the sealing end is displaced circumferentially a substantial distance relative to the mounting end. Each leaf further has a sealing edge on its outer surface between the mounting and sealing ends extending obliquely of the axial plane, such sealing edge being disposed beneath the inner surface of an adjacent leaf. A wear liner is disposed on the inner surfaces of the leaves at their sealing ends for spacing the sealing ends from the drum surface and mating with the drum surface.

US Patent:

40285154, Jun 7, 1977

Filed:

Sep 15, 1975

Appl. No.:

5/613696

Inventors:

Frank B. Desio - Melrose Park IL
Samuel Lee Webb - Lisle IL

Assignee:

Illinois Tool Works Inc. - Chicago IL

International Classification:

H01H 1332
H01H 106

US Classification:

200276

Abstract:

A dual-in-line switch package having a plurality of momentary contact switching stations and a plurality of indicating lights is disclosed. The switching mechanism of the switches is provided by a close wound coil spring having one end that encloses one contact and another end that is bent by the depression of a pushbutton so that it makes contact with a second contact in order to complete the circuit. The indicating lights may be light-emitting diodes which have lead extensions that are brought out of the package in line with the contacts for the switches. The light-emitting diodes rest on a support guide rail and are held in place in the switch when the cover is snapped on.