Freudenberg-nok General Partnership

Nok Corporation

Carl Freudenberg Kg

Joel T Johnson

Yoshiyuki Abe

Marvin Joseph Houser

Mathias Burkert

Noriyuki Matsui

Eric Herrera

Mohamed Salah Atali

Kendrick William Banks

Benjamin E Westbrook

Takeshi Wakana

A seal system for a reciprocating cylinder includes a buffer seal, a rod seal, and a wiper seal. The buffer seal includes a dynamic seal lip and a static lip extending from a hinge portion. The hinge portion of the static lip allows fluid to escape past the outer diameter of the seal when the rod is retracted thereby releasing any pressure build-up between the rod seal and buffer seal. The axial face portion of the dynamic seal lip includes axially extending notches therein. The notches prevent the buffer seal from sticking to the axial wall of the groove and provide a consistent path for the fluid to energize the annular groove between the static and dynamic lips during the extension phase which is necessary for the function of the seal. The back-up ring is an integrated part of the buffer seal, used to provide superior extrusion resistance. The rod seal includes an annular seal body having a dynamic seal lip angularly extending radially inwardly and axially from the seal body, and a static lip angularly extending radially outwardly and axially from the seal body. An axial face portion of the dynamic seal lip and the static lip each include radially extending notches therein. The notches prevent the seal from sticking to the axial walls of the groove the rod seal is installed in and provides a consistent path for the fluid to energize the annular groove created by the static and dynamic lip during the extension phase. The back-up ring is an integrated part of the rod seal, used to provide superior extrusion resistance.

Wide range temperature and pressure hydraulic cylinder sealing system

An integrated noise attenuator and kick panel are provided for attenuating noise emanating from an appliance such as a dishwasher, washer, dryer, or refrigerator. The kick panel includes an elongated panel member having side flaps which are biased laterally against cabinets or other structures disposed on each side of the appliance. The elongated panel member is also provided with a textured noise attenuating surface on the back thereof which, along with the side flaps, attenuates and absorbs the sound and vibration emanating from the appliance.

Appliance integrated noise attenuator with kick panel

Growing community of inventors

Ringwood, IL, United States of America

Joel T Johnson