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US 11,975,563 B2Granted
Pattern maker
AssigneeCrayola LLC
InventorsJoseph Thomas Moll, Jennifer Kesilman, Gregory Nungester, Linda Smith
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a drawing device for creating a pattern, wherein the drawing device comprises a gear assembly that rotates upon movement of the device, the gear assembly being operatively coupled to a cam and a cam follower, such that rotation of the gear assembly rotates the cam and causes the cam to bear against the cam follower. Movement of the cam follower thereby causes lateral movement of a marker carriage housing at least one writing instrument.
Claims20
A drawing device comprising:
- at least one wheel coupled to a wheel rod having a gear assembly located thereon, wherein movement of the wheel causes rotation of the gear assembly;
- a cam operatively coupled to the gear assembly such that rotation of the gear assembly causes rotation of the cam, wherein the cam has at least one bearing surface that defines a pattern to be drawn by the drawing device, the bearing surface configured to intermittently engage a cam follower upon rotation of the cam;
- at least one arm operatively coupled to the cam follower, wherein the at least one arm is configured to pivot upon engagement of the cam with the cam follower;
- a marker carriage operatively coupled to the at least one arm, wherein the marker carriage defines at least one marker opening sized and shaped to receive a writing instrument, and wherein the marker carriage is configured to laterally move upon pivoting of the at least one arm in the pattern defined by the bearing surface.
1 more element
A method of creating a pattern on a substrate, the method comprising:
- inserting at least one writing instrument into a marker carriage of a drawing device;
- coupling a cam to the drawing device;
- pushing the device across the substrate, wherein the device comprises at least one wheel coupled to a wheel rod, and the pushing causes the at least one wheel and the wheel rod to rotate;
- wherein the device comprises a gear assembly and rotation of the at least one wheel causes rotation of the gear assembly;
- wherein the gear assembly is operatively coupled to the cam, such that rotation of the gear assembly causes rotation of the cam;
- wherein the cam has at least one bearing surface configured to intermittently bear against a cam follower upon rotation of the cam;
- wherein the device further comprises at least one arm operatively coupled to the cam follower, wherein the at least one arm is configured to pivot upon engagement of the cam with the cam follower;
- and
- wherein the marker carriage is operatively coupled to the at least one arm and the marker carriage is configured to laterally move upon pivoting of the at least one arm.
6 more elements
Dependencies are inferred from the claim text.