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:
Mar. 24, 1987
Filed:
Nov. 18, 1985
Kiyoshi Kawaguchi, Amagasaki, JP;
Other;
Kagakushi Kogyo Co., Ltd., both of, JP;
Abstract
A spool for a reversible-type correction tape assembly comprising a cap and a spool shaft and improved releasable fastening means therebetween. The spool shaft is adapted to receive a correction ribbon-winding core axially-slideable, but not rotatable around the axis thereof. The spool shaft comprises a sleeve having a top cap-receiving section which has an outer cap-engaging surface which receives a cap detachably mounted thereon so that the winding core does not slip off of the spool shaft. The cap has a depending wall having an inner shaft-engaging surface for engaging the cap-engaging surface of the spool shaft. The engaging surface of the cap or of the spool shaft is provided with a projection extending in a radial direction, and the other engaging surface is provided with a recess or hole capable of receiving the projection. The portion of the engaging surface having the projection or the portion having the recess or hole is capable of being bent or flexed when the cap is twisted to release the engagement between the projection and the recess or hole so that the cap can be lifted off of the spool shaft. The cap cannot be released when only an axial cap-pulling force is added. The cap can be easily detached by twisting but is securely fastened against loosening during use.