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:
Feb. 25, 2003
Filed:
Apr. 09, 2001
Dennis R. Zander, Penfield, NY (US);
Other;
Abstract
A model railroad crossing gate includes a base, a crossing gate mounted on the base for movement between a raised position and a lowered position, a spring coupled to the crossing gate biasing the gate to the raised position, a string attached to the crossing gate and the base for pulling the gate against the spring, and a tensioner engaging the string for pulling the gate from the raised position to the lowered position. A controller is coupled to the tensioner for controlling the position of the gate. The controller is preferably is also coupled to a limit sensor and a motor for operating the motor to move the gate from the raised position to the lowered position or vice versa and then stop the motor. The controller includes a first input responsive to an input pulse for producing a crossing gate activating signal having a duration longer than the duration of the input pulse for moving the crossing gate fully between its raised and lowered position, and a second input responsive to an input signal longer than a predetermined minimum for producing a crossing gate activating signal having a duration equal the duration of the input signal. The controller includes an output for controlling a second controller and an input for receiving signals from a remote controller.