Range finder

• US 7,643,132 B2
• Filed: 04/15/2005
• Issued: 01/05/2010
• Est. Priority Date: 03/04/2002
• Status: Expired due to Fees

• Current Assignee: Larry Holmberg
• Original Assignee: Larry Holmberg
• Inventors: Holmberg, Larry
• Primary Examiner(s): ALSOMIRI, ISAM A
• Application Number:
  US11/106,828
• Publication Number:
  US 20050195385A1
• Time in Patent Office: 1,726 Days
• Field of Search: 356/4.01, 356/5.15, 356/251, 356/247, 42/750.1, 421/24, 421/27
• US Class Current: 356/5.02
• CPC Class Codes: F41C 27/00 Accessories; Details or attachments not otherwise provided for
• CPC Class Codes: F41G 1/473 for lead-indicating or range-finding, e.g. for use with rifles or shotguns
• CPC Class Codes: F41G 3/06 with rangefinder rangefinders per se G01C

Abstract

A range finder adapted to be mounted to a scope. The range finder includes a main housing, range finding circuit received in the main housing and a mounting mechanism adapted to mount the main housing to a scope.

Claims

1. A method of using a range finder with a weapon having a scope, the method comprising:

(a) attaching the range finder to a support mounted on top of the scope, which is mounted on top of the weapon so that the range finder, the scope, and the weapon are aligned in a common vertical plane, and a laser beam of the range finder and a sight line of the scope are parallel to each other;

(b) activating the range finder to measure distance to a target; and

(c) displaying the measured distance.

2. The method of claim 1, wherein attaching the range finder to the support includes engaging the range finder with a mounting rail located on the support.

3. The method of claim 1, wherein the support is mounted on top of the scope by at least one scope ring.

4. The method of claim 1, wherein the scope is mounted on top of the weapon by at least one scope ring.

5. A system for use with a weapon having a scope, the system comprising:

a range finder;

a horizontally extending support plate for mounting the range finder above the scope, the support plate having a mounting rail; and

at least one scope ring for surrounding the scope, the at least one scope ring having a clamp for clamping attachment to the mounting rail, wherein the at least one scope ring and support plate mount the range finder directly above the scope so that the rangefinder, the scope, and the weapon are aligned in a common vertical plane, and a laser beam of the range finder and a sight line of the scope are parallel to each other.

6. The system of claim 5, further comprising:

a screw for securing the clamping attachment between the scope ring and the mounting rail.

7. The system of claim 5, further comprising:

first and second mounting brackets for mounting the scope above the weapon, the first and second mounting brackets extending downwardly from the scope.

8. The system of claim 7, further comprising:

first and second spaced apart scope rings for surrounding the scope, wherein the first and second mounting brackets extend downwardly from the first and second scope rings, respectively.

9. The system of claim 8, further comprising:

third and fourth spaced apart scope rings for surrounding the scope.

10. The system of claim 9, further comprising:

third and fourth mounting brackets extending vertically upwards from the third and fourth scope rings, respectively, wherein the support plate extends horizontally between the third and fourth mounting brackets.

11. The system of claim 10, wherein the mounting rail of the support plate couples with the third and fourth mounting brackets.

12. A system for use with a weapon having a scope, the system comprising:

a range finder comprising;

a body having a signal end and a display end opposite the signal end;

a circuit for projecting signals and receiving reflected signals through the signal end; and

a display coupled to the display end, the display for displaying distances determined by the circuit; and

a mounting mechanism for mounting the range finder to the scope, the mounting mechanism comprising;

a horizontally extending support plate for supporting the range finder above the scope; and

at least one scope ring having a lower end for surrounding the scope and an upper end for attaching to the support plate, wherein the at least one scope ring and support plate mount the range finder directly above the scope so that the rangefinder, the scope, and the weapon are aligned in a common vertical plane, and a signal of the range finder and a sight line of the scope are parallel to each other.

13. The system of claim 12, wherein the range finder further comprises:

an operation panel having at least one control switch.

14. The system of claim 12, wherein the range finder further comprises:

a remote control unit for operating the range finder.