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.

Date of Patent:
Mar. 02, 2004

Filed:

Nov. 25, 2002
Applicant:
Inventors:

He Yun Shen, Shenzhen, CN;

Sheng Liu, Shenzhen, CN;

Yong-Qiang Zhao, Shenzhen, CN;

Guili Dong, Shenzhen, CN;

Longhai Huang, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 3/28 ;
U.S. Cl.
CPC ...
G01B 3/28 ;
Abstract

A tool for measuring depths of countersunk holes includes a worktable ( ), a measuring member ( ), and a display device ( ). The worktable includes a measuring plate ( ) defining four adjusting screw holes ( ) in four comers thereof, and four adjusting rods ( ) adjustably attached in the adjusting screw holes below the measuring plate. The adjusting rods are adjusted so that the measuring plate can be level. The measuring member is generally cylindrical, and includes a cylindrical head ( ) having a conical tip ( ). The display device includes a vertical central shaft ( ), and a bearing sleeve ( ) surrounding a bottom of the central shaft. The central shaft can move vertically through the bearing sleeve. The display device further includes a cylindrical body ( ) having a display ( ) showing a height value of a top face of the central shaft, and a zeroing button ( ).


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