Riflescope elevation adjustment assembly
First Claim
1. In a firearm telescopic sight having a lens-supporting tube with ocular and objective lenses at opposite ends thereof, and including an internal means movably mounted within the tube for defining a line of sight for sighting targets at varying ranges, an improved external range adjustment assembly comprising:
- a base secured to the tube, the base defining an upwardly extending annular flange having a transparent viewing portion facing the ocular-lens end of the sight to be visible when the sight is held in an aiming position;
a rotatable knob having an externally accessible gripping surface positioned above the base flange, and having a skirt fitted within the base flange, the skirt bearing markings forming a distance scale, a portion of the scale being viewable through the transparent viewing portion; and
an elevation adjustment means having a head connected to the knob to rotate therewith, the adjustment means further having a portion extending into the lens-supporting tube in operation connection with said internal means, said portion being movable responsive to rotational movement of the knob and adjustment means to adjustably position the internal means whereby the sight is adjusted for use at a particular target distance by rotating the knob until said distance is displayed through the base flange window.
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Accused Products
Abstract
A riflescope elevation adjustment assembly which reads directly in terms of target distance in addition to providing conventional "click" elevation settings. The assembly includes an adjustment knob which is externally accessible for rotation without use of tools or removal of parts. A distance scale, appropriately calibrated to the firearm and ammunition in use, is displayed on an annular flange extending from the knob to be positioned within an annular housing secured to the riflescope. The distance scale is viewed through a transparent portion of the housing, and is visible when the firearm is held in a normal aiming position.
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Citations
7 Claims
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1. In a firearm telescopic sight having a lens-supporting tube with ocular and objective lenses at opposite ends thereof, and including an internal means movably mounted within the tube for defining a line of sight for sighting targets at varying ranges, an improved external range adjustment assembly comprising:
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a base secured to the tube, the base defining an upwardly extending annular flange having a transparent viewing portion facing the ocular-lens end of the sight to be visible when the sight is held in an aiming position; a rotatable knob having an externally accessible gripping surface positioned above the base flange, and having a skirt fitted within the base flange, the skirt bearing markings forming a distance scale, a portion of the scale being viewable through the transparent viewing portion; and an elevation adjustment means having a head connected to the knob to rotate therewith, the adjustment means further having a portion extending into the lens-supporting tube in operation connection with said internal means, said portion being movable responsive to rotational movement of the knob and adjustment means to adjustably position the internal means whereby the sight is adjusted for use at a particular target distance by rotating the knob until said distance is displayed through the base flange window. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification