Telescopic sight
First Claim
1. A telescopic sight for a firearm, comprising a housing, an optical system housed by the housing for presenting a telescopic image and an aiming point in said image to a user of the telescopic sight, and at least one sighting adjustment mechanism for making a sighting adjustment of said aiming point relative to said image, said sighting adjustment mechanism comprising a movable plunger and a manual adjustment control configured to move said movable plunger, the manual adjustment control comprising a rotatable turret knob, the turret knob being accessible to said user on the housing for manually effecting said sighting adjustment, wherein:
- the optical system comprises within the housing at least one movable member, movement of said movable member causing said sighting adjustment;
the housing has a port therethrough, the plunger being slidably engaged in said port and linking the manual adjustment control with the movable member whereby, in use, the manual adjustment control causes the plunger to slide in said port when the turret knob is rotated resulting in said movement of the movable member to make said sighting adjustment, said slideable engagement being such that the housing interior remains atmospherically sealed as the plunger slides in said port; and
the manual adjustment control is removably affixed to the housing, characterised in that the manual adjustment control comprises an actuation surface that makes abutting contact with an outer end surface of a stem of the plunger so that when the manual adjustment control is to be disconnected from the housing in order to remove the manual adjustment control from the housing, the actuation surface separates from said outer end surface to enable the manual adjustment control to fully separate from the plunger whereby the plunger remains slidably engaged in said port in order to maintain said atmospheric seal of the housing interior when the manual adjustment control is removed from the housing.
2 Assignments
0 Petitions
Accused Products
Abstract
A telescopic sight for a firearm, comprising an external housing and a manually adjustable sighting adjustment mechanism comprising a manual adjustment control and a plunger. The optical system comprises a sighting assembly with a movable member for adjusting sighting. The plunger is slidably in a port in the housing, linking the adjustment control with the movable member. Manual adjusting the manual control causes the plunger to move the movable member, making the sighting adjustment. The housing interior remains atmospherically sealed as the plunger slides in the port. The manual adjustment control is removably affixed to the housing, and the manual adjustment control is fully separable from the plunger which remains slidably engaged and retained in the port when the manual adjustment control is removed from the housing, in order to maintain the atmospheric seal of the housing interior.
15 Citations
25 Claims
-
1. A telescopic sight for a firearm, comprising a housing, an optical system housed by the housing for presenting a telescopic image and an aiming point in said image to a user of the telescopic sight, and at least one sighting adjustment mechanism for making a sighting adjustment of said aiming point relative to said image, said sighting adjustment mechanism comprising a movable plunger and a manual adjustment control configured to move said movable plunger, the manual adjustment control comprising a rotatable turret knob, the turret knob being accessible to said user on the housing for manually effecting said sighting adjustment, wherein:
-
the optical system comprises within the housing at least one movable member, movement of said movable member causing said sighting adjustment; the housing has a port therethrough, the plunger being slidably engaged in said port and linking the manual adjustment control with the movable member whereby, in use, the manual adjustment control causes the plunger to slide in said port when the turret knob is rotated resulting in said movement of the movable member to make said sighting adjustment, said slideable engagement being such that the housing interior remains atmospherically sealed as the plunger slides in said port; and the manual adjustment control is removably affixed to the housing, characterised in that the manual adjustment control comprises an actuation surface that makes abutting contact with an outer end surface of a stem of the plunger so that when the manual adjustment control is to be disconnected from the housing in order to remove the manual adjustment control from the housing, the actuation surface separates from said outer end surface to enable the manual adjustment control to fully separate from the plunger whereby the plunger remains slidably engaged in said port in order to maintain said atmospheric seal of the housing interior when the manual adjustment control is removed from the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A telescopic sight kit comprising a telescopic sight for a firearm, said telescopic sight comprising a housing, an optical system housed by the housing for presenting a telescopic image and an aiming point in said image to a user of the telescopic sight, and at least one sighting adjustment mechanism for making a sighting adjustment of said aiming point relative to said image, said sighting adjustment mechanism comprising a movable plunger and a manual adjustment control configured to move said movable plunger, the manual adjustment control comprising a rotatable turret knob, the turret knob being accessible to said user on the housing for manually effecting said sighting adjustment, wherein:
-
the optical system comprises within the housing at least one movable member, movement of said movable member causing said sighting adjustment; the housing has a port therethrough, the plunger being slidably engaged in said port and linking the manual adjustment control with the movable member whereby, in use, the manual adjustment control causes the plunger to slide in said port when the turret knob is rotated resulting in said movement of the movable member to make said sighting adjustment, said slideable engagement being such that the housing interior remains atmospherically sealed as the plunger slides in said port; and the manual adjustment control is removably affixed to the housing, characterised in that the manual adjustment control comprises an actuation surface that makes abutting contact with an outer end surface of a stem of the plunger so that when the manual adjustment control is to be disconnected from the housing in order to remove the manual adjustment control from the housing, the actuation surface separates from said outer end surface to enable the manual adjustment control to fully separate from the plunger whereby the plunger remains slidably engaged in said port in order to maintain said atmospheric seal of the housing interior when the manual adjustment control is removed from the housing; and wherein the telescopic sight kit further comprises, separate from the telescopic sight, at least one manual adjustment control that is interchangeable with at least one manual adjustment control of the telescopic sight without breaking the atmospheric seal of the housing interior.
-
Specification