Patents Assigned to POSEIDON DIVING SYSTEMS
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Patent number: 8820135Abstract: A method for operating an oxygen sensor arrangement senses the oxygen in a breathing loop of a breathing apparatus. The sensor arrangement includes a primary oxygen sensor to measure the oxygen in the breathing loop, a secondary oxygen sensor to measure the oxygen in the breathing loop, and a control arrangement to obtain measures from the oxygen sensor. A test channel arrangement provides a first gas having a first fraction of oxygen from a first gas supply to the primary oxygen sensor at a position adjacent to the primary oxygen sensor. A test valve arrangement opens and closes the flow of the first gas through the test channel arrangement. The control arrangement actuates the first test valve arrangement to provide an amount of the first gas to the primary oxygen sensor via the test channel arrangement and obtain measures from the primary and secondary oxygen sensors.Type: GrantFiled: October 29, 2008Date of Patent: September 2, 2014Assignee: Poseidon Diving Systems ABInventors: William C. Stone, Nigel Jones
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Patent number: 8800344Abstract: An oxygen sensor arrangement is arranged to sense the oxygen in a breathing loop of a breathing apparatus. The sensor arrangement comprises at least one primary oxygen sensor arranged to operatively measure the oxygen in the breathing loop, and a control arrangement for obtaining measures from the oxygen sensor. A test channel arrangement is adapted to operatively provide a first gas having a first fraction of oxygen from a first supply to the primary oxygen sensor at a position adjacent to or directly adjacent to the primary oxygen sensor. A first test valve arrangement is arranged to operatively open and close the flow of the first gas through the test channel arrangement. The control arrangement is arranged to operatively actuate the first test valve arrangement so as to provide an amount of the first gas to the primary oxygen sensor via the test channel arrangement.Type: GrantFiled: October 29, 2008Date of Patent: August 12, 2014Assignee: Poseidon Diving Systems ABInventors: William C. Stone, Nigel Jones, Kurt Sjöblom
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Patent number: 8770195Abstract: The present invention relates to a mouth piece for a breathing apparatus, a breathing apparatus and a method for adjusting a valve trigger mechanism arranged on a mouth piece for a breathing apparatus. The mouth piece according to the present invention comprises a housing comprising a mouth piece breathing part opening for inhaling and exhaling a breathable gas. An inlet port for providing breathable gas into said mouth piece housing, the inlet port being in communication with valve means arranged to open or close said inlet port. The housing further comprises a first exit port for exhausting gas from said housing into a closed circuit flow channel and a second exit port for exhausting gas from said mouth piece housing into an ambient environment. Switch means for selectively directing said exhaust gas between said first exit port and said second exit port to change the mouth piece between open circuit breathing and closed circuit breathing.Type: GrantFiled: October 29, 2008Date of Patent: July 8, 2014Assignee: Poseidon Diving Systems ABInventors: William C. Stone, Jorgen Sahibzada
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Publication number: 20110114094Abstract: The Invention is directed to an oxygen sensor arrangement (8) and a method for operating such an arrangement for sensing the oxygen in a breathing loop (29) of a breathing apparatus. The sensor arrangement comprises: at least one primary oxygen sensor (30) arranged to operatively measure the oxygen in the breathing loop (29), at least a secondary oxygen sensor (31) arranged to operatively measure the oxygen in the breathing loop (29), and a control arrangement (40) for obtaining measures from said oxygen sensors. A test channel arrangement (15, 48) is adapted to operatively provide a first gas having a first fraction of oxygen from a first gas supply (16) to said primary oxygen sensor (30) at a position (267) adjacent to said primary oxygen sensor (30). At least a first test valve arrangement (41, 42) is arranged to operatively open and close the flow of said first gas through said test channel arrangement (15, 48).Type: ApplicationFiled: October 29, 2008Publication date: May 19, 2011Applicant: POSEIDON DIVING SYSTEMSInventors: William C. Stone, Nigel Jones
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Publication number: 20110041848Abstract: The invention is directed to an oxygen sensor arrangement 8 for sensing the oxygen in a breathing loop 29 of a breathing apparatus 100. The sensor arrangement 8 comprises at least one primary oxygen sensor 30 arranged to operatively measure the oxygen in the breathing loop 29, and a control arrangement 40 for obtaining measures from said oxygen sensor. A test channel arrangement 15, 362 is adapted to operatively provide a first gas having a first fraction of oxygen from a first supply 20 to said primary oxygen sensor 30 at a position 267 adjacent to or directly adjacent to said primary oxygen sensor. A first test valve arrangement 41 is arranged to operatively open and close the flow of said first gas through said test channel arrangement 15, 362. Said a control arrangement 40 is arranged to operatively actuate said first test valve arrangement 41 so as to provide an amount of said first gas to said primary oxygen sensor 30 via said test channel arrangement 15, 362.Type: ApplicationFiled: October 29, 2008Publication date: February 24, 2011Applicant: POSEIDON DIVING SYSTEMSInventors: William C. Stone, Nigel Jones, Kurt Sjöblom