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US 5,180,875 AGranted
Scope adjustment for firearms
OwnerWaldo A. Berry, Jr., Edward M. Klarainventors
Life of this patent
Estimating the term…
Abstract
Adjustment means for a scope having a tubular body and a zoom ring mounted on the tubular body for varying the magnification power of the scope are disclosed. A first gear is concentrically mounted on the zoom ring for rotation therewith, and a second gear is carried on the tubular body and is engageable with the first gear. The second gear has a concentric shaft, and manual, electro-mechanical or dual means for rotating the shaft are provided. When the scope is used with a rifle, the means for rotation may be adjusted by a shooter without removing one hand from the firing position.
Claims28
A variable magnification power scope comprising:
- a tubular body having an eyepiece end and a rangefinder end;
- at least one lens within the tubular body;
- a zoom ring mounted on the tubular body for varying the magnification power of the scope;
- and
- adjustment means for manipulating the zoom ring, said adjustment means comprising:
- a first gear concentrically mounted on the zoom ring for rotation therewith, a zoom ring clamp concentrically mounted on the zoom ring and carrying said first gear, each of said zoom ring clamp and said first gear including a first portion and a second portion which are adapted for attachment to one another to encircle the zoom ring, a second gear carried on the tubular body and engageable with the first gear, a concentric shaft depending from the second gear, and means for rotating the shaft and the second gear on a first axis, thereby rotating the first gear and the zoom ring on a second axis and varying the magnification power of the scope.
3 more elements
A variable magnification power scope comprising:
- a tubular body having an eyepiece end and a rangefinder end;
- at least one lens within the tubular body;
- a zoom ring mounted on the tubular body for varying the magnification power of the scope;
- and
- adjustment means for manipulating the zoom ring, said adjustment means comprising:
- a first gear concentrically mounted on the zoom ring for rotation therewith, a second gear carried on the tubular body and engageable with the first gear, a concentric shaft depending from the second gear, and means for rotating the shaft and the second gear on a first axis, thereby rotating the first gear and the zoom ring on a second axis and varying the magnification power of the scope;
- wherein said means for rotating the shaft comprises a thumb wheel mounted on an end of the shaft opposite the second gear.
4 more elements
A variable magnification power scope comprising:
- a tubular body having an eyepiece end and a rangefinder end;
- at least one lens within the tubular body;
- a zoom ring mounted on the tubular body for varying the magnification power of the scope;
- and
- adjustment means for manipulating the zoom ring, said adjustment means comprising:
- a first gear concentrically mounted on the zoom ring for rotation therewith, said first gear further including a front gear portion and a rear gear portion, a second gear carried on the tubular body and engageable with the first gear, a concentric shaft depending from the second gear, and means for rotating the shaft and the second gear on a first axis, thereby rotating the first gear and the zoom ring on a second axis and varying the magnification power of the scope;
- wherein said front gear portion is a ring gear and said rear gear portion is a bevel gear.
4 more elements
A rifle adapted to be held with both hands by a shooter comprising:
- a stock;
- a barrel extending from the stock, said barrel having a breech end located on the stock and a muzzle end spaced from the stock;
- a trigger fixed to the stock near the breech end of the barrel;
- a scope mounted on the barrel intermediate the breech end and the muzzle end, said scope having a tubular body with an eyepiece end and a rangefinder end, with at least one lens mounted within the tubular body and a zoom ring mounted on the tubular body for varying the magnification power of the scope;
- a zoom ring clamp engaged on the zoom ring;
- a first gear carried by said zoom ring clamp and concentrically mounted on the zoom ring for simultaneous rotation therewith;
- a second gear carried on the tubular body and engageable with the first gear, said second gear having a concentric shaft;
- and
- adjustment means mounted on the rifle for rotating the shaft and the second gear on a first axis thereby rotating the first gear and the zoom ring on a second axis, said adjustment means disposed adjacent the trigger so that the shooter can vary the magnification power of the scope without removing one hand from the rifle;
- wherein said adjustment means comprises a thumb wheel mounted on an end of the shaft opposite the second gear and disposed adjacent the trigger for rotating the shaft.
7 more elements
A rifle adapted to be held with both hands by a shooter comprising:
- a stock
- a barrel extending from the stock, said barrel having a breech end located on the stock and a muzzle end spaced from the stock;
- a trigger fixed to the stock near the breech end of the barrel;
- a scope mounted on the barrel intermediate the breech end and the muzzle end, said scope having a tubular body with an eyepiece end and a rangefinder end, with at least one lens mounted within the tubular body and a zoom ring mounted on the tubular body for varying the magnification power of the scope;
- a zoom ring clamp engaged on the zoom ring;
- a first gear carried by said zoom ring clamp and concentrically mounted on the zoom ring for simultaneous rotation therewith;
- a second gear carried on the tubular body and engageable with the first gear, said second gear having a concentric shaft;
- and
- adjustment means mounted on the rifle for rotating the shaft and the second gear on a first axis thereby rotating the first gear and the zoom ring on a second axis, said adjustment means disposed adjacent the trigger so that the shooter can vary the magnification power of the scope without removing one hand from the rifle;
- wherein said first gear has a front gear portion and a rear gear portion, said rifle further including a third gear engageable with the front gear portion of the first gear, said third gear having a second concentric shaft, said second gear engageable with the rear gear portion of the first gear.
7 more elements
Dependencies are inferred from the claim text.