Dover Corporation

Xomox Corporation

Charles W Taylor

Fred A Wilson

Donald A Lasater

Everett J DeJager

Steven R Ebbesmeyer

A valve construction and method of making the same are provided, the valve construction comprising a housing having a valve chamber therein, a valve member rotatably carried by the housing in the valve chamber thereof and having a valve stem extending from the chamber, and a seal unit carried by the housing to prevent leakage from the valve chamber to the exterior of the housing and having an annular seal member sealing against and completely around the stem while permitting rotational movement therebetween, the seal unit comprising a pair of annular metallic retainers press-fitted together in telescoping relation and holding the annular seal member therebetween in compressed sealed relation therewith.

Valve construction and method of making the same

Dispensing nozzle

In an automatic shut-off nozzle, the vacuum chamber, which has its vacuum increased when flow through the nozzle is to be stopped in response to a predetermined condition such as the tank being filled to a predetermined level, for example, has the reduction in the vacuum therein controlled so that the automatic shut-off mechanism cannot be returned to its latching position by the attendant for a predetermined period of time after having been activated. A check valve allows removal of air from the chamber to increase the vacuum in response to the predetermined condition while preventing flow of air into the chamber. The flow of air into the chamber to reduce the vacuum therein must be through metering means so that a predetermined period of time must elapse until the vacuum in the chamber has been reduced by the air flow through the metering means to enable the shut-off mechanism to be latched.

Liquid dispensing nozzle having controlled shut-off mechanism

A swivel connector between a flexible hose and a nozzle has a reduced portion of a first body secured to the nozzle and an enlarged portion of a second body secured to the hose with the first and second bodies, which have an enlarged portion of the first body overlapping a reduced portion of the second body, providing aligned passages therethrough to provide communication between the hose and the nozzle. A plastic thrust bearing is disposed between a metallic ring secured by set screws to the enlarged portion of the first body and a metallic ring mounted by flats on the ring cooperating with flats on the reduced portion of the second body so that each of the rings rotates with the body to which it is connected. The thrust bearing has a first face, which is perpendicular to the axis or centerline of the aligned passages, engage a substantially parallel face on the metallic ring secured to the first body and a second face, which is substantially parallel to the first face, engage a substantially parallel face on the metallic ring secured to the second body. Thus, all rotation occurs between one of the faces of the thrust bearing and the face on one of the metallic rings. A pair of plastic radial bearings is disposed between the enlarged portion of the first body and the reduced portion of the second body to provide bending support thereto. One of the radial bearings is disposed adjacent the metallic ring secured to the first body while the other radial bearing is disposed adjacent a seal ring which is spaced from the metallic ring secured to the second body and provides the seal between the first and second bodies.

Growing community of inventors

Batavia, OH, United States of America

Charles W Taylor