Patent · US Active

Purse ring having multiple rollers

US7743475B2 · kind B2 · utility

6Cited by
8References
17Claims
0Family size

Inventors

Key dates

Filing dateApr 25, 2007
Grant dateJun 29, 2010
Priority date
Expiry dateMar 14, 2029

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16B45/027
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A purse ring for coupling a purse seine and a purse line to each other. The purse ring includes a frame, which is coupled at a first end thereof to the purse seine and passes the purse line through a second end thereof, and at least three rollers, which are rotatably provided in the frame at positions at which the purse line are brought into contact with the frame. The purse seine having the multiple rollers has a structure such that friction between the purse line and the purse ring is reduced, thus increasing the lifetime of the purse ring, thereby reducing costs of replacement of the purse ring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.