Abstract: Reversible quiver for performing the sport of archery, consisting of a support element (1) equipped with devices to secure it to the body of the sportsperson, and a containment element (2) for the arrows, which can be connected in an interchangeable fashion to the support element (1), wherein the connection devices (3) are of magnetic type, consisting of a female part (3a) and a male part (3b), and wherein this latter part can be inserted coaxially into the female part (3a), whilst disengagement occurs in the direction defined by the respective disengagement grooves provided on the female parts (3) and equipped with a single disengagement opening.

Abstract: Reversible quiver for performing the sport of archery, consisting of a support element (1) equipped with devices to secure it to the body of the sportsperson, and a containment element (2) for the arrows, which can be connected in an interchangeable fashion to the support element (1), wherein the connection devices (3) are of magnetic type, consisting of a female part (3a) and a male part (3b), and wherein this latter part can be inserted coaxially into the female part (3a), whilst disengagement occurs in the direction defined by the respective disengagement grooves provided on the female parts (3) and equipped with a single disengagement opening.

Abstract: A circuit for monitoring and diagnosing an oxygen probe provided with a sensitive cell connected between a first and a second signal terminal, and a heating member connected between a battery and a heating terminal; the circuit includes an interface stage and a control unit. The interface stage includes a first resistor connected between a switch which is normally open and a supply line at a known potential and the first signal terminal, a second resistor connected between the first signal terminal and a second signal terminal and a third resistor connected between the second signal terminal and reference potential line. The control unit further includes a first analog-digital converter connected to the first signal terminal and a second analog-digital converter connected to the second signal terminal.

Abstract: A circuit for monitoring and diagnosing an oxygen probe provided with a sensitive cell connected between a first and a second signal terminal, and a heating member connected between a battery and a heating terminal; the circuit comprises an interface stage and a control unit. The interface stage comprises a first resistor connected between a switch which is normally open and a supply line at a known potential and the first signal terminal, a second resistor connected between the first signal terminal and a second signal terminal and a third resistor connected between the second signal terminal and a reference potential line. The control unit further comprises a first analog-digital converter connected to the first signal terminal and a second analog-digital converter connected to the second signal terminal.