Abstract: A general-purpose multiple-cutting edge drill includes: a drill point (1); a drill body (2); margins (3) located on an outer wall of the drill body (2); two lips, wherein, if viewed from an axial direction, from out to inside, each of the two lips successively includes an outer cutting edge (11), an arc cutting edge (12) and an inner cutting edge (13); a chisel edge (14); outer peaks (15) formed by intersection of the outer cutting edges (11) and the arc cutting edges (12); a center peak (16) formed by intersection of two inner flank surfaces and two split surfaces. Moreover, an included angle between the inner cutting edges (13) ranges from 108° to 128°, an included angle between the outer cutting edge (11) ranges from 130° to 140°, and an included angle between the inner cutting edge (13) and outer cutting edge (11) ranges from 28° to 40°.
Type:
Grant
Filed:
February 16, 2012
Date of Patent:
January 17, 2017
Assignees:
NINGBO HUAREN TOOLS CO., LTD., TEST RITE INTERNATIONAL COMPANY LIMITED
Abstract: A gazebo provided in this invention includes a gazebo frame and a canopy coupled to the gazebo frame. The gazebo according to embodiments of the invention. has the following advantages, such as no need for additional connecting components or tools to connect or fasten different sections of the gazebo, low potential security risk, quick disassembling under inclement weather conditions which may reduce the potential losses of a user, conveniences for a user to disassemble and store, capability of repeated assembling and disassembling for connecting components which prolongs the life of a gazebo, little chances of missing connecting components, no burden of worrying about after-sales service.
Type:
Application
Filed:
June 4, 2012
Publication date:
June 13, 2013
Applicant:
Test Rite International Company Limited