Håmsø Patentbyrå AS

A device for determining in use when a user is exercising below, at or above the anaerobic threshold, the device comprising an ultrasound transducer and a processor wherein: the ultrasound transducer is signal connected to the processor and the ultrasound transducer is arranged in use to: be attached to the body of the user before and during exercise; send a series of ultrasound waves at a doppler angle of between 0 and 80 degrees to a blood flow in the body before exercise begins; receive a first series of ultrasound wave reflections back from the blood flow with a doppler shift; and send a series of ultrasound waves at the same doppler angle of between 0 and 80 degrees to a blood flow in the body during exercise; receive a second series of ultrasound wave reflections back from the blood flow with a doppler shift; and send the ultrasound wave data to the processor; wherein the processor is configured to: receive ultrasound wave data from the ultrasound transducer and: determine, at a first period in the cardiac phase, the doppler shift of the series of ultrasound waves sent to the blood flow before exercise; determine, at a second period in the cardiac phase corresponding to the first period in the cardiac phase, the doppler shift of the series of ultrasound waves sent to the blood flow during exercise; and calculate a velocity growth factor based on the doppler shifts at the first and second corresponding periods in the cardiac phases; and compare the velocity growth factor with a predetermined anaerobic velocity growth factor or a predetermined anaerobic velocity growth factor range; and determine that the user is: exercising below the anaerobic threshold if the velocity growth factor is less than the anaerobic velocity growth factor or less than the lower limit of the anaerobic velocity growth factor range; or exercising at the anaerobic threshold if the velocity growth factor is equal to the anaerobic velocity growth factor or within the anaerobic velocity growth factor range; or exercising above the anaerobic threshold if the velocity growth factor is greater than the anaerobic velocity growth factor or greater than the upper limit of the anaerobic velocity growth factor range.

A device for determining in use when a user is exercising below, at or above the anaerobic threshold, the device comprising an ultrasound transducer and a processor wherein: the ultrasound transducer is signal connected to the processor and the ultrasound transducer is arranged in use to: be attached to the body of the user before and during exercise; send a series of ultrasound waves at a doppler angle of between 0 and 80 degrees to a blood flow in the body before exercise begins; receive a first series of ultrasound wave reflections back from the blood flow with a doppler shift; and send a series of ultrasound waves at the same doppler angle of between 0 and 80 degrees to a blood flow in the body during exercise; receive a second series of ultrasound wave reflections back from the blood flow with a doppler shift; and send the ultrasound wave data to the processor; wherein the processor is configured to: receive ultrasound wave data from the ultrasound transducer and: determine, at a first period in the cardiac phase, the doppler shift of the series of ultrasound waves sent to the blood flow before exercise; determine, at a second period in the cardiac phase corresponding to the first period in the cardiac phase, the doppler shift of the series of ultrasound waves sent to the blood flow during exercise; and calculate a velocity growth factor based on the doppler shifts at the first and second corresponding periods in the cardiac phases; and compare the velocity growth factor with a predetermined anaerobic velocity growth factor or a predetermined anaerobic velocity growth factor range; and determine that the user is: exercising below the anaerobic threshold if the velocity growth factor is less than the anaerobic velocity growth factor or less than the lower limit of the anaerobic velocity growth factor range; or exercising at the anaerobic threshold if the velocity growth factor is equal to the anaerobic velocity growth factor or within the anaerobic velocity growth factor range; or exercising above the anaerobic threshold if the velocity growth factor is greater than the anaerobic velocity growth factor or greater than the upper limit of the anaerobic velocity growth factor range.

A reciprocating compressor (1', 1", 1‴, 1"") comprising: a suction valve (110', 110", 110‴, 110A, 110B); a discharge valve (120', 120", 120‴, 120A); and a working chamber (251', 251", 251‴, 251A, 251B); wherein the suction valve (110', 110", 110‴, 110A, 110B ) is configured to provide fluid communication between a suction channel (40', 40", 40"', 40A, 40B) and the working chamber (251', 251", 251‴, 251A, 251B) and the discharge valve (120', 120", 120‴, 120A) is configured to provide fluid communication between the working chamber (251', 251", 251‴, 251A, 251B) and a discharge channel (50', 50", 50‴, 50A, 50B); characterized in that the suction valve (110', 110", 110‴, 110A, 110B ) comprises at least one non-self-actuated valve and the discharge valve (120', 120", 120‴, 120A) comprises at least one self-actuated check valve. The at least one non-self-actuated valve is actively driven such that the non-self-actuated valve does not open or close in response to fluid pressure in the compressor

A moveable cutting device (220, 230, 250) for providing automated removal of a cable clamp (120) from a pipe string (100), the cutting device (220, 230, 250) comprising: an attachment means configured to attach the cutting device (220, 230, 250) to a manipulator (290) for moving and/or operating the cutting device (220, 230, 250) in use; and a cutting means (221, 222, 221a, 251) configured in use to be operated to cut a portion of a cable clamp (120) such that the cable clamp (120) is released from the pipe string (100).

A fluid separator system (340) for separating a condensable working fluid from a lubricant in a working fluid/lubricant mix. The fluid separator system (340) comprises: a fluid separator chamber (343); a fluid separator inlet (344); and a fluid separator shielding member (342) arranged at the fluid separator inlet (344) and configured to restrict a quantity of working fluid/lubricant mix entering the fluid separator inlet (344). The fluid separator chamber (343) is configured in use to provide a deceleration of fluid entering the fluid separator chamber (343) from the fluid separator inlet (344), such that, in use, the working fluid/lubricant mix entering the fluid separator chamber (343) is decelerated, thereby separating at least some of the working fluid from the lubricant.

A cylinder head (400, 4000) for a piston compressor, the cylinder head (400, 4000) comprising a suction valve section (200, 2001), a discharge valve section (300, 3001), and an extended cup (500, 5001) forming a discharge channel (510, 5101), wherein the suction valve section (200, 2001) is extended at its upper end to form the extended cup (500, 5001).

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