Patent · US Expired

Strap configuration for a reverse double wrap band

US4757880A · kind A · utility

16Cited by
10References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 21, 1985
Grant dateJul 19, 1988
Priority date
Expiry dateNov 21, 2005

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H63/3003
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An improved reverse double wrap brake band for the automatic transmission of an automotive vehicle wherein the band is lightweight and heat set round at the released position and utilizes a thinner strap material at higher hardness ranges. The configuration of the double wrap band has a wider central band segment adjacent the anchor portion of the bracket assembly, with the band width tapering over 60 to 70 percent of its length toward the apply end of the band; thus providing a double wrap band of increased durability for the friction lining and increased apply end, drum, and fatigue life.

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