Fujikin Inc.

Tadanobu Yoshida

Michio Yamaji

Tsutomu Shinohara

Shigeru Itoi

Kenji Tsubota

Susumu Ozawa

Hiroshi Morokoshi

Kosuke Yokoyama

Osamu Fukata

Each of ridgeson respective opposite side surfaces of a gaskethas a trapezoidal cross sectional shape defined by an outer tapered faceproviding an outer peripheral surface, an inner tapered faceproviding an inner peripheral surface and a flat faceproviding a top end surface. The hardness of the gasket, the angle between the tapered facesof the ridge, the height of the ridgeand the area of the flat top end faceof the ridge are so determined that the value of thrust for tightening up the coupling is between a predetermined minimum value and a predetermined maximum value.

Method of making a fluid coupling

Fluid coupling and method of designing the same

A method for facilitating fabrication of a coupling member includes a first step of boring one of upwardly open, passageways, a communication passageway and an auxiliary passageway in a body block, a second step of inserting a closure member into the auxiliary passageway, a third step of welding the closure member to the inner peripheral body portion defining the auxiliary passageway, and a fourth step of boring the other upwardly open passageway in the body block. The closure member is inserted in the second step so as to be positioned at least party in the portion where the other upwardly open passageway is to be formed.

Coupling member for use in fluid control apparatus and method of fabricating same

Growing community of inventors

Osaka, Japan

Tadanobu Yoshida