The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1989
Filed:
Jan. 05, 1988
Steven Ellman, Brooklyn, NY (US);
Fred Ellman, Brooklyn, NY (US);
Julius Ellman, Brooklyn, NY (US);
George Lerner, Naran-Ja, FL (US);
Other;
Abstract
A hand-held marking device for drawing upon a paper or other surface. The device includes a housing having a hole opening to the surface and enclosing a motor, batteries for the motor, and a switch. The motor drives a gear train, which includes a pinion gear axially connected with the motor and a spur gear geared with the pinion gear. A holder gripping a pencil or pen is positioned over the hole so that the holder rotates about a horizontal pivot pin downward so that the pen or pencil comes into contact with the paper or surface to be marked by force of gravity. The paper is in a horizontal plane and the pen is in a vertical orientation. The holder is secured to the inner rim of the spur gear. The swivel member can be aligned into one of a plurality of locking recesses along an arced groove eccentrically oriented relative the center of the spur gear. When the motor is turned on and the marking device is moved manually, the pen draws a continuous spiral. Another embodiment includes a template having one of a plurality of possible cutout configurations removably connected to the bottom of the housing.