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.)
Expired
Application number
GB646636A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duracell Inc USA
Original Assignee
PR Mallory and Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US3372ApriorityCriticalpatent/US2107742A/en
Application filed by PR Mallory and Co IncfiledCriticalPR Mallory and Co Inc
Priority to GB646636Aprioritypatent/GB456869A/en
Publication of GB456869ApublicationCriticalpatent/GB456869A/en
H01H29/00—Switches having at least one liquid contact
H01H29/006—Self interrupters, e.g. with periodic or other repetitive opening and closing of contacts
Landscapes
Contacts
(AREA)
Abstract
Mercury for use in an electric interrupter is amalgamated with 1 per cent of silver to reduce its resistance.ALSO:A contact element for use in an electric interrupter is made by mixing cadmium oxide with dilute sodium silicate solution to form a plastic mass, which is then moulded into rod shape and sintered.
GB646636A1935-01-251936-03-03Improvements in and relating to electric current interrupters
ExpiredGB456869A
(en)