Patent ID: 11971241
Assignee: SHELTERED WINGS, INC.
Field: Optics (Instruments)
Classification: CPC F  G | IPC F  G

Claim 4:
5. A rifle scope with spiral cam mechanism comprising:
a scope body;
a moveable optical element defining an optical axis connected to the scope body;
a turret having a screw operably connected to the moveable optical element for adjusting the optical axis in response to rotation of the screw;
a spiral cam mechanism having a bushing configured to permit passage of the screw, the spiral cam mechanism defining a first stop surface positioned for engagement by a cylindrical body to limit rotation of the turret, such that the position at which the cylindrical body engages the first stop surface defines a zero position of the screw and the moveable optical element;
the spiral cam mechanism defining a second stop surface positioned for engagement by a cylindrical body to limit rotation of the turret, such that the position at which the cylindrical body engages the second stop surface defines a maximum point of displacement of the screw and the moveable optical element; wherein the first stop surface and second stop surface are connected by a channel and further wherein the channel comprises a stepped spiral.