公开(公告)号：US5111839A

公开(公告)日：1992-05-12

申请号：US690600

申请日：1991-04-24

Applicant: David J. Schroepfer ,  Tadeusz Podkanski

Inventor： David J. Schroepfer ,  Tadeusz Podkanski

IPC: F16K5/20

CPC classification number: F16K5/201 ,  Y10T137/4259 ,  Y10T137/4273 ,  Y10T137/5762

Abstract: An improved airplane toilet drain valve assembly comprising a rotatable valve mounted within a housing and a moveable sealing member which is arranged in contact with the valve surface when the valve is in a closed position and which during operation of the valve is moved away from the valve surface thereby avoid wear or damage due to friction between the seal and rotating valve. The invention further comprises a scraper member mounted within the valve housing which prevents solid waste materials from coming into contact with the seals.

Abstract translation: 一种改进的飞机卫生间排水阀组件，包括安装在壳体内的可旋转阀和可移动密封构件，当阀处于关闭位置时，可移动的密封构件布置成与阀表面接触，并且在阀的运行期间将其从阀 从而避免由于密封和旋转阀之间的摩擦而导致的磨损或损坏。 本发明还包括安装在阀壳体内的刮板构件，其防止固体废物与密封件接触。

公开(公告)号：US06666525B1

公开(公告)日：2003-12-23

申请号：US10173086

申请日：2002-06-17

Applicant: David J. Schroepfer

Inventor： David J. Schroepfer

IPC: B60B100

CPC classification number: B60B21/064 ,  B60B1/0207 ,  B60B1/042 ,  B60B1/047

Abstract: The spoked wheel apparatus is symmetrical, is reversible, employs spokes that are threaded on both ends, and is capable of supporting a tubeless tire, without air leaking from the tire. A hub assembly for the wheel apparatus includes two sides, and each side includes a plurality of alternately crossing spokes that are connected between the hub assembly and a wheel rim portion. Each hub side includes an interchangeable and reversible drive dowel assembly capable of receiving a drive sprocket or disc brake. For a hub side, some spokes are connected between outer portions of the hub side to the wheel rim portion, and some spokes are connected between inner portions of the hub side to the wheel rim portion. Alternating pairs of inner and outer spokes come into interference contact midway between the hub assembly and the wheel rim portion, whereby strengthening and stabilizing effects are provided between the interfering spokes.

Abstract translation: 喇叭轮装置是对称的，是可逆的，使用在两端螺纹的轮辐，并且能够支撑无内胎轮胎，而没有空气从轮胎泄漏。 用于轮装置的轮毂组件包括两侧，并且每一侧包括连接在轮毂组件和轮缘部分之间的多个交替交叉的轮辐。 每个轮毂侧包括能够接收驱动链轮或盘式制动器的可互换和可逆的驱动榫钉组件。 对于轮毂侧，一些辐条连接在轮毂侧的外侧部分与轮缘部分之间，并且一些辐条连接在轮毂侧的内部与轮缘部分之间。 交替成对的内轮辐和外辐条在轮毂组件和轮缘部分之间的中途形成干涉接触，由此在干涉轮辐之间提供加强和稳定效果。