Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
Publication of GB462615ApublicationCriticalpatent/GB462615A/en
462,615. Inflating - valves. DUNLOP RUBBER CO., Ltd., and BAWCUTT, P. J. Oct. 25, 1935, No. 29494. [Class 135] [Also in Group XXII] Valves for inflating pneumatic tyre tubes or the like, comprising a metal stem 1, and a base 4 and a portion 3 covering the metal stem, both of rubber, or comprising a stem projecting, uncovered with rubber, from a disc-like base, have the bore left at least partially closed, as by a web 7, until the foundation layer of liquid rubber or other base layer has been applied to the metal stem, or until the mass of rubber has been applied and vulcanized.