Clip-on, clip off mounting device, as for a portable light

A mounting device comprising:

• a substantially circular base having first and second sides and having a non-circular cavity in the first side thereof, said circular base having at least one hole therethrough;
• a pin in the cavity and extending from said circular base to define an axial direction, said pin having a larger diameter portion defining a head, a smaller diameter portion mounting said pin in the cavity of said circular base, and said pin having an intermediate diameter portion;
• a plate disposed in the cavity of said circular base and movable in the axial direction on the intermediate diameter portion of said pin, said plate having a non-circular periphery that engages the non-circular cavity of said circular base so as not to be rotatable about said pin in the cavity of said circular base;
• a spring for biasing said plate away from said circular base in the axial direction;
• a threaded fastener in the at least one hole in said circular base;
• and
• a bracket adjacent the second side of said circular base and having a threaded hole therein engaging said threaded fastener for gripping an object to which said mounting device is mountable.

A mounting device comprising:

• a substantially circular base member having a base with first and second sides and having a generally circular wall extending from the base to define a non-circular cavity at the first side thereof, the non-circular cavity having at least one inward projection making it non-circular, said base member having one axial hole through the base thereof and having two axial holes through the circular wall thereof;
• a pin in the non-circular cavity of said base member and extending axially from the base of said base member, said pin having a larger diameter portion defining a head, a smaller diameter portion disposed in the one axial hole in the base of said base member, and said pin having an intermediate diameter portion;
• a plate disposed in the non-circular cavity and movable in the axial direction on the intermediate diameter portion of said pin, said plate having a generally circular periphery having at least one recess therein for making its periphery non-circular,
• wherein the at least one recess in the non-circular periphery of said plate engages the at least one projection in the non-circular cavity of said base member so that said plate is not rotatable about said pin in the non-circular cavity;
• a spring surrounding the intermediate diameter portion of said pin for biasing said plate away from the base of said base member in the axial direction and against the head of said pin;
• a folded bracket adjacent the second side of the base of said base member, said folded bracket having a base and two arms, the two arms each having a respective threaded hole therein aligned with the two holes in the circular wall of said base member;
• and
• two threaded fasteners respectively disposed in the two holes in the circular wall of said base member and respectively engaging the two threaded holes in said folded bracket for drawing said folded bracket toward the second side of the base of said base member for gripping an object to which said mounting device is mountable.