Diametrically expansible coil spring conduit plug

申请公布号：US3895652(A)

申请号：US19740432567

申请日期：1974.01.11

申请公布日期：1975.07.22

申请人：

ZACH, ROGER G.

发明人：ZACH, ROGER G.

分类号：B65D39/12;F16L55/132;(IPC1-7):B65D59/02

主分类号：B65D39/12

摘要：A plumber's tool for preventing leakage of water into a conduit during repair or installation comprising a diametrically expansible coil spring disposed in a sealed rubber boot, such that when the ends of the coil spring thereof are twisted by handles connected thereto the coil spring expands or contracts in diameter binding the rubber boot against the walls of the conduit to create a seal.

Fluid discharge device for a window or headlamp washing device of a vehicle

Clam-shell type mobile telephone comprising an antenna integrated in the hinge

VEHICLE SAFETY SYSTEM AND METHOD OF OPERATION OF SAME

Photocathode, photomultiplier abnd electron tube

Optical member with antireflection coating and method of manufacturing the same

ASYNCHRONOUS LINE INTERFACE RATE ADAPTATION TO THE PHYSICAL LAYER WITH SYNCHRONOUS LINES AT THE CONNECTION LAYER

Compact bearing element and its use

METHOD FOR DETERMINING INFORMATION ABOUT THE INTERNAL WORKINGS OF A CHIP BASED ON ELECTRO-MAGNETIC EMISSIONS THEREFROM

HOLDER FOR TIP AND METHOD FOR MANUFACTURING THE SAME, AND SCRIBING DEVICE AND MANUAL CUTTER THAT ARE PROVIDED WITH THE HOLDER FOR TIP

FIBROUS COMPOSITE ARTICLES

GAS DRIVEN SOLIDS DISCHARGE AND PUMPING PISTON FOR A CENTRIFUGAL SEPARATOR

MINIMIZATION OF INTERFACIAL RESISTANCE ACROSS THERMOELECTRIC DEVICES BY SURFACE MODIFICATION OF THE THERMOELECTRIC MATERIAL

Image forming apparatus with a cleaning mechanism for a fixing device

DATA TRANSFER MANAGEMENT IN A RADIO COMMUNICATIONS NETWORK

POSITION SENSOR WHICH USES THE CHANGE OF THE MAGNETIC FIELD'S ANGLE

Fixture for positioning gas turbine engine components

In-line capacitor assembly with folded electrode surfaces

Lamp adjuster

INFORMATION PROCESSING APPARATUS

AUDIO DATA PACKET FORMAT AND DECODING METHOD THEREOF AND METHOD FOR CORRECTING MOBILE COMMUNICATION TERMINAL CODEC SETUP ERROR AND MOBILE COMMUNICATION TERMINAL PERFORMING SAME