Stagger stick
AssigneeWehrs Machine & Racing Products, Inc.
InventorsChad Larry Wehrs, Dan Fredrickson
Life of this patent
Estimating the term…
Abstract
Generally, a device to measure the circumference of circular objects. Specifically, a device including a pair of slidingly engaged members disposed between a pair of arms configured to be engaged with tread on a tire at about the midline of a wheel, an electrical circuit which varies in output voltage based on the distance between the pair of arms, and a processor communicatively coupled to a non-transitory computer readable medium containing a program which correlates the output voltage of the electrical circuit to a unit measure of distance between the pair of arms and calculates tire circumference.
Claims16
A device, comprising:
- a first member slidably engaged to a second member;
- a pair of arms, wherein a first of said pair of arms outwardly extends from said first member, and wherein a second of said pair of arms outwardly extends from said second member;
- an electrical circuit, wherein output voltage of said electrical circuit varies based on said distance between said pair of arms;
- a processor communicatively coupled to a non-transitory computer readable medium containing a program executable to:
- correlate the output voltage of said electrical circuit to said distance between said pair of arms;
- and
- calculate a circumference of a circle corresponding to said distance between said pair of arms.
A method of making a device, comprising:
- slidably engaging a first member to a second member;
- outwardly extending a first of a pair of arms from said first member, and outwardly extending a second of said pair of arms from said second member;
- provide an electrical circuit, wherein output voltage of said electrical circuit varies based on said distance between said pair of arms;
- communicatively coupling a processor to a non-transitory computer readable medium containing a program, and executing said program to:
- correlate the output voltage in said electrical circuit to said distance between said pair of arms;
- and
- calculate a circumference of a circle corresponding to said distance between said pair of arms.
A method of using a device, comprising:
- obtaining said device including:
- a first member slidably engaged to a second member;
- a pair of arms, wherein a first of said pair of arms outwardly extends from said first member, and wherein a second of said pair of arms outwardly extends from said second member;
- an electrical circuit, wherein output voltage of said electrical circuit varies based on a distance between said pair of arms engaged to a tread of a tire;
- engaging said first and second pair of arms to a tread of a tire at about a midline of a wheel;
- activating a processor communicatively coupled to a non-transitory computer readable medium containing a program executable to:
- correlate said output voltage of said electrical circuit to said distance between said pair of arms engaged to said tread of said tire;
- calculate a circumference of said tire based on said distance between said pair of arms engaged to said tread of said tire;
- implement a user interface;
- and
- read out said circumference of said tire based on said distance between said pair of arms engaged to said tread of said tire in measurement units on said user interface.
Dependencies are inferred from the claim text.