Security system for displaying objects

1. A mount assembly for securing to an object that has front and back surfaces, comprising:

opposed clamp members having engagement members for engaging the front surface of the object, and

a clamp assembly for releasably securing the clamp members, the clamp assembly including opposed surfaces defining at least one passage for receiving ends of the opposed clamp members, the opposed surfaces being movable to each other to secure the clamp members,

an adjustable object clamp member located on the clamp assembly and having a forward facing surface for applying a force against the back surface of the object, the object clamp member being adjustable when the object is located between the engagement members and the object clamp member enabling the object to be clamped between the engagement members and the object clamp member, wherein the object clamp member defines a rearwardly opening channel that slidably receives the clamp assembly.

2. The mount assembly of claim 1 wherein the opposed clamp member ends each comprise an arm slidably received within the passage defined by the clamp assembly, the clamp assembly including a first clamp plate and a base member with the passage being defined between them.

3. The mount assembly of claim 2 wherein locking screws pass through holes provided in the base member and corresponding slots in the clamp member ends into threaded holes in the first clamp plate.

4. The mount assembly of claim 2 wherein ribs or serrations are provided on surfaces of the clamp member arms to cooperate with corresponding ribs or serrations provided on respective surfaces that define the clamp passage.

5. The mount assembly of claim 2 wherein each clamp member comprises a distal end including the engagement member connected by an intermediate side arm in spaced opposition to the clamp member arm, the distal ends being configured to engage opposite side edges or diagonal corners of the object.

6. A security system including an anchor assembly, and a mount assembly according to claim 1 , the anchor assembly being configured to be secured to a stationary support, the mount assembly being configured to be releasably secured to the anchor assembly wherein the anchor assembly comprises a power connector for connecting a power supply cord to the object.

7. The security system of claim 6 wherein the mount assembly can be rotated between indexed positions on the anchor assembly.

8. The mount assembly of claim 1 wherein the at least one passage defined by the clamp assembly encloses four sides of each of the received ends of the clamp members.

9. The mount assembly of claim 1 , wherein the object clamp member is formed from plastic and a metal spring plate.

10. A security system for securing an object that has front and back surfaces, the security system comprising:

an anchor assembly configured to be secured to a stationary support and comprising a power connector for connecting a power supply cord to the object; and

a mount assembly for securing to the object, comprising:

opposed clamp members having engagement members for engaging the front surface to the object,

a clamp assembly for releasably securing the clamp members, the clamp assembly including opposed surfaces defining at least one passage for receiving ends of the opposed clamp members, the opposed surfaces being moveable to each other to secure the clamp members, and

an adjustable object clamp member located on the clamp assembly and having a forward facing surface for applying a force against the back surface of the object, the object clamp member being adjustable when the object is located between the engagement members and the object clamp member enabling the object to be clamped between the engagement members and the object clamp member;

wherein when the mount assembly is locked to the anchor assembly the object cannot be released from the mount assembly.

11. The system of claim 10 wherein the anchor assembly comprises a releasable lock assembly configured to lock the mount assembly to the anchor assembly in a locked position that allows pivoting of the anchor assembly relative to the mount assembly but prevents separation of the mount assembly from the anchor assembly.

12. A security system for securing an object that has front and back surfaces, the security system comprising:

an anchor assembly configured to be secured to a stationary support and comprising a power connector for connecting a power supply cord to the object; and

a mount assembly for securing to the object, comprising:

opposed clamp members having engagement members for engaging the front surface to the object,

a clamp assembly for releasably securing the clamp members, the clamp assembly including opposed surfaces defining at least one passage for receiving ends of the opposed clamp members, the opposed surfaces being moveable to each other to secure the clamp members,

an adjustable object clamp member located on the clamp assembly and having a forward facing surface for applying a force against the back surface of the object, the object clamp member being adjustable when the object is located between the engagement members and the object clamp member enabling the object to be clamped between the engagement members and the object clamp member, and

a spigot that extends rearward of the clamp assembly, the spigot comprising a central opening housing an adjustment screw for adjusting the adjustable object clamp member, and

wherein the anchor assembly is configured to releasably engage the spigot to secure the mount assembly, wherein the adjustment screw is accessible for adjustment when: the object is engaged by the opposed clamp members and the spigot is not engaged by the anchor assembly; and adjustment of the adjustment screw is prevented when the spigot is engaged by the anchor assembly.

13. The security system of claim 12 further comprising a tether having a first end connected to the spigot and an enlarged second end, the tether extending through the anchor assembly to secure the mount assembly to the anchor assembly.