Resources Contact Us Home
Method of manufacturing inner gear and method of manufacturing cylindrical product

Image Number 11 for United States Patent #5788911.

A method of manufacturing the cylindrical product includes the steps of inserting a first cylindrical mold into a hole at the center of a second cylindrical mold and engaging a toothed portion on the first cylindrical mold with a spiral groove on the second cylindrical mold to provide a lower mold. Further, an upper mold is mounted thereon to form a space for forming the cylindrical product and molten resin material is injected into the space to harden therein. The second cylindrical mold is withdrawn in a direction to allow the mold to be opened, the first cylindrical mold is axially moved to insert the toothed portion into a relief groove on a flat portion of the second cylindrical mold, the first cylindrical mold is rotated in a direction to withdraw it along the flat portion, the upper mold is rotated to extract the cylindrical product.

  Recently Added Patents
Audit planning
Support core for cold shrink tube
Method of driving stereoscopic display apparatus and stereoscopic display apparatus
Combined high and low frequency stimulation therapy
Radio communication system, base station device and mobile station device utilizing an intermittent reception
Method and apparatus for information exchange over a web based environment
Functional component compensation reconfiguration system and method
  Randomly Featured Patents
Solid lubricant for die casting process
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene and metal amide or metal alkoxide catalyst
Method and apparatus for controlling freezing nucleation and propagation
Image processor
Fine increment tilt mechanism
Bumper beam having face with supported angled wall
Combination wall mount, caddy mount garden hose reel
Boundary scan cell design for high performance I/O cells
Synthesis of 4-amino-thalidomide enantiomers
System and method for qualifying multiple device under test (DUT) test head