Patent ID: 7415791
Filing Date: 2008-08-26
Classification: F41G

Abstract:
1. A rifle scope comprising: a body; a plurality of optical elements in the body; an adjustment knob rotatably connected to the body; the adjustment knob being connected to at least one of the optical elements, such that an image shift is generated in proportionate response to rotation of the adjustment knob; a detent mechanism operationally engaged to the adjustment knob; the detent mechanism having a plurality of detent positions; each detent position having a corresponding detent force by which the detent mechanism resists movement; the detent force for a first plurality of the detent positions having a first value; the detent force for a second plurality of the detent positions having a second value greater than the first value; wherein the detent mechanism includes a first surface portion having a first plurality of similar evenly spaced ridges for engagement by a first spring biased contact element; and wherein the detent mechanism includes a second surface portion having a second plurality of ridges for engagement by a second spring biased contact element, and wherein there are fewer second elements than first elements.