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

Image Number 19 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 The second cylindrical mold is withdrawn in a direction to allow the mold to be opened, the first cylindrical mold is axially moved to insert the toothed portion into a relief groove on a flat portion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
Method and system for detecting center pivot collision
Helmet mandible
Imaging device, method and computer readable medium
Method for transforming a single reactor line
Digital watermark embedding apparatus, digital watermark embedding method, and digital watermark detection apparatus
Diameter signaling for mobile IPv4
  Randomly Featured Patents
Process for making individualized, crosslinked fibers and fibers thereof
Tripod type constant velocity universal joint
Microelectromechanical filter
Automobile anti-theft device
Barbecue oven having improved heat circulation
Bleaching compositions
Beach chair with lock box in arm rest
Thermostatic switch with reset mechanism
Apparatus for continuous electrolytic treatment of aluminum article
Pivoting grain tank on an agricultural combine