STREAMLINE FILTERS

Wairarapa Times-Age, 17 March 1939, Page 7

STREAMLINE FILTERS

RECONDITIONING OF USED OIL. In view of the widespread adoption of Stream-Line filters for the reconditioning of used oils from Diesel engines, transport vehicles and electrical transformers and circuit breakers, considerable interest attaches to the successful application recently made for the extension of the term of the basic patent. In the High Court of Justice, Chancery Division, London, Mr Justice Simonds recently delivered judgment in regard to this petition, presented jointly by Stream-Line Filters, Limited, and Dr. H. S. Hele-Shaw. Mr Trevor Watson, K.C., pointed out that the invention was being used by the Royal Air Force, the Admiralty, the Central Electricity Board and other public bodies. It was further stated that the lubricating oil consumed in England, amounting to an annual total of 150,000,000 gallons, had to be imported from abroad, and as the filter enabled the impurities to be efficiently separated from 95 to 97 per cent of good oil still remaining this resulted in a substantial measure of public economy ,a matter of national importance. Mr Justice Simonds, in the course of his judgment, said that the patent relating to the material used for filtration showed great utility to the public. There had been no un- s due delay in exploiting the patent, and 1 a sum of £70,000 had been expended for that purpose. Stream-Line Filters Limited now appeared, from the bal-ance-sheet, to be in a strong position to market the invention. His lordship said that he was justified in making a re-grant for a term of five years from date of the expiration of the second patent. Dr H. S. Hele-Shaw is a brother of Mrs J. Hessey, of Master ton.