Patent ID: 7959140

Claim:
A magnetic positioning device, comprising: a. A first magnetic arm and a second magnetic arm connected by the respective first end of said arms; b. An adjustable-angle axle connector wherein two connection disks are formed at the first end of said first magnetic arm and one connection disk is formed at the first end of said second magnetic arm, so that a locking bolt and a corresponding locking nut are inserting through said connection disks concentrically when said disks are stacked together; c. An activation hole further exists on said connection disks, wherein an arc-shaped toothed-groove is formed on the connection disk of the second magnetic arm, allowing the magnetic arms to rotate about each other within the arc-angle of the toothed-groove, pivoting on the locking bolt; and, d. A pin with an enlarged head sized to fit the plurality of pre-determined angle position indents on the toothed-groove, with a spring located at the inner end of a hole on one of the connection disk, so that the spring provides a resilient force to disengage the enlarged head from the indents in the toothed-groove, when a different angle will be selected.