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:
Jul. 23, 2019
Filed:
Sep. 04, 2018
James J. Kempf, Coralville, IA (US);
Rex E. Isenhower, Stanwood, IA (US);
Dorge O. Huang, Henry, IL (US);
James J. Kempf, Coralville, IA (US);
Rex E. Isenhower, Stanwood, IA (US);
Dorge O. Huang, Henry, IL (US);
ARCHERY INNOVATORS, Tiffin, IA (US);
Abstract
A crossbow with built in electric cocking preferably includes a motor, a drive device, a pair of carriage drive shafts and a pair of string carriages. The motor preferably includes a gearbox with an output shaft. The drive device includes a support frame and a drive shaft rotatably retained in the support frame. A drive gear is retained on one end of the drive shaft. An opposing end of the drive shaft is connected the output shaft. First and second carriage drive shafts each include a threaded drive shaft and a carriage drive gear retained on one end of the threaded drive shaft. The drive gear drives the carriage drive gear. First and second string carriages each include a string catch and a threaded tap. The threaded tap is sized to threadably receive the threaded drive shaft.