Patents Assigned to BOFA International Limited
  • Fume extraction device having system for validating credentialed filters
    Patent number: 9734305
    Abstract: A fume extraction apparatus (1) which comprises an identifier module (20a; 20b) capable of communicating a credential signal over an air interface, a receiver (31) for receiving the credential signal and validating the same, the identifier module attached to a removable filter unit (5; 6); and the receiver is secured to a body of the apparatus, which body removably receives the filter unit.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: August 15, 2017
    Assignee: BOFA INTERNATIONAL LIMITED
    Inventor: David Lawrence Cornell
  • Fume extraction
    Patent number: 9120044
    Abstract: An operational monitoring apparatus for a fume extraction filter assembly having a pressure sensor assembly and a data processor. The pressure sensor assembly senses fluid pressure at an outlet to a downstream filter, fluid pressure from an inlet to an upstream filter, and fluid pressure from fluid flowing from an outlet of the upstream filter to the inlet of the downstream filter. The data processor processes fluid pressure difference values between the respective inlet and outlet of each filter.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 1, 2015
    Assignee: Bofa International Limited
    Inventor: David Lawrence Cornell
  • FUME EXTRACTION
    Publication number: 20150059583
    Abstract: An operational monitoring apparatus for a fume extraction filter assembly having a pressure sensor assembly and a data processor. The pressure sensor assembly senses fluid pressure at an outlet to a downstream filter, fluid pressure from an inlet to an upstream filter, and fluid pressure from fluid flowing from an outlet of the upstream filter to the inlet of the downstream filter. The data processor processes fluid pressure difference values between the respective inlet and outlet of each filter.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: BOFA International Limited
    Inventor: David Lawrence Cornell
  • FILTER ASSEMBLIES
    Publication number: 20140306797
    Abstract: A fume extraction apparatus (1) which comprises an identifier module (20a; 20b) capable of communicating a credential signal over an air interface, a receiver (31) for receiving the credential signal and validating the same, the identifier module attached to a removable filter unit (5; 6); and the receiver is secured to a body of the apparatus, which body removably receives the filter unit.
    Type: Application
    Filed: February 11, 2014
    Publication date: October 16, 2014
    Applicant: BOFA International Limited
    Inventor: David Lawrence CORNELL