Gland packing and method of producing same
US5188376A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Feb 5, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The packing according to the present invention is composed of a string-like body formed of an elongated tape-like packing material having at least one layer is repeatedly folded in direction at a right angle to the longitudinal direction thereof in a zigzag manner with peak portions and valley portions alternately formed. According to the packing, the string-like body cut into a predetermined length according to the diameter of a shaft with which it is to be used may be wound on the outer peripheral surface of the shaft with the width or thickness direction of the string-like body directed in the radial direction of the shaft. Thus, the packing is versatile with respect to the shaft diameter. The packing itself produces no slip in the axial direction of a shaft. This prevents the packing from protruding, thus eliminating stress release due to a decrease in volume. The packing is used with the string-like body folded in the three-dimensional directions. Accordingly, the shaft-following properties of the packing at the time when the same is worn, are satisfactory and the decrease in sealing properties is restrained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.