IP Library Granted Patent US 7,447,565
Granted Patent B2
US 7,447,565 · App. 10/906,763 · Granted Nov 4, 2008

Electronic alignment system

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Quick Facts
Patent No.
US 7,447,565
App. No.
10/906,763
Granted
Nov 4, 2008
Kind
B2
Abstract

An electronic alignment system is disclosed. The system has at least two accelerometers, mounted in the device in such a manner that the accelerometers are mutually perpendicular to one another. An electrical connection electrically connects the accelerometers, a computing and processing device, a memory device, a feedback device, and a power source. A three axis reference frame is used as a basis for determining the angle of rotation of the device about an axis. Two accelerometers are required to determine a first angle of rotation. Adding a third accelerometer allows for the calculation of a second angle of rotation. Distance sensors can determine distance to a work piece, how far the device has traveled relative to a work piece, areas and volumes, and a third angle of rotation. Gyroscopes can also determine a third angle of rotation. The device may also include light projectors.

Claims (25)

1. An electronic alignment device comprising:

at least two accelerometers, said accelerometers being mutually perpendicular to one another;

a computing and processing device, said computing and processing device comprising computer implemented means for enabling a user to field calibrate said accelerometers, calculating at least one angle of rotation about an axis in a reference frame, reading and writing data from and to a memory device, and sending data to a feedback device for providing feedback to a user; and

means for electrically connecting said accelerometers, said computing and processing device, said feedback device, said memory device and a power source, wherein said computer implemented means for enabling a user to field calibrate said accelerometers includes providing instructions to a user to position said electronic device to capture a first set of positional data, and then providing instructions to the user to turn said electronic alignment apparatus 180° degrees to enable said electronic alignment device to capture a second set of positional data and average said first and second sets of captured data.

2. An electronic alignment device comprising:

at least two accelerometers, said accelerometers being mutually perpendicular to one another;

at least two distance sensors, said distance sensors being mutually perpendicular;

a computing and processing device, said computing and processing device comprising computer implemented means for enabling a user to field calibrate said accelerometers, calibrating said distance sensors, determining a distance from each of said distance sensors, determining an area from the product of said determined distances, reading and writing data from and to a memory device, and sending data to a feedback device for providing feedback to a user; and

means for electrically connecting said distance sensors, said computing and processing device, said feedback device, said memory device and a power source, wherein said computer implemented means for enabling a user to field calibrate said accelerometers includes providing instructions to a user to position said electronic device to capture a first set of positional data, and then providing instructions to the user to turn said electronic alignment device 180° degrees to enable said electronic alignment device to capture a second set of positional data and average said first and second sets of captured data.

3. An electronic alignment apparatus comprising:

a housing;

input and control means externally mounted on said housing;

a feedback device for providing feedback to a user operatively mounted in said apparatus;

at least two accelerometers, said accelerometers being mutually perpendicular to one another, said accelerometers internally mounted in said housing;

first and second distance sensors pointed in the same direction, said distance sensors operatively mounted in said housing;

a computing and processing device, said computing and processing device comprising computer implemented means for enabling a user to field calibrate said accelerometers, calculating first and second distances, calculating an angle of rotation about a first axis in a reference frame, calculating an angle of rotation about a second axis in said reference frame, reading and writing data from and to a memory device, receiving input from input and control means, and sending data to said display device, said computing and processing device internally mounted in said housing; and

means for electrically connecting said accelerometers, said distance sensors, said computing and processing device, said memory device, said display and a power source, said electrically connecting means internally mounted in said housing, wherein said computer implemented means for enabling a user to field calibrate said accelerometers includes providing instructions to a user to position said electronic apparatus to capture a first set of positional data, and then providing instructions to the user to turn said electronic alignment apparatus 180° degrees to enable said electronic alignment apparatus to capture a second set of positional data and average said first and second sets of captured data.

4. An electronic alignment apparatus comprising:

a housing;

input and control means externally mounted on said housing;

a feedback device for providing feedback to a user operatively mounted in said apparatus;

at least two accelerometers, said accelerometers being mutually perpendicular to one another, said accelerometers internally mounted in said housing;

a gyroscope, said gyroscope operatively mounted in said housing;

a computing and processing device, said computing and processing device comprising computer implemented means for enabling a user to field calibrate said accelerometers, calculating an angle of rotation about a first axis in a reference frame, calculating an angle of rotation about a second axis in said reference frame, reading and writing data from and to a memory device, receiving input from said input and control means, and sending data to said display device, said computing and processing device internally mounted in said housing; and

means for electrically connecting said accelerometers, said gyroscope, said computing and processing device, said memory device, said display and a power source, said electrically connecting means internally mounted in said housing, wherein said computer implemented means for enabling a user to field calibrate said accelerometers includes providing instructions to a user to position said electronic apparatus to capture a first set of positional data, and then providing instructions to the user to turn said electronic alignment apparatus 180° degrees to enable said electronic alignment apparatus to capture a second set of positional data and average said first and second sets of captured data.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2013
From: CALIBRAIT LLC
To: CERWIN TOOLS, INC.
Reel/Frame 030091/0146 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 1, 2011
From: CERWIN TOOLS, INC.
To: CALIBRAIT LLC
Reel/Frame 026677/0655 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2011
From: CERWIN, JOHN
To: CERWIN TOOLS, INC
Reel/Frame 026199/0552 →
Continuity (2)
Provisional Application 6056859500 · May 6, 2004
Related Publication 20050251294A1 · Nov 10, 2005