Waterproof zipper
US4274159A · kind A · utility
Inventor
Key dates
| Filing date | May 22, 1980 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | May 22, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D13/012
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention discloses a waterproof relief outlet in a chest wader. A waterproof folded funnel having a pair of inner flanges at one end is secured through a center seam of the chest wader. A funnel housing having an inner flap and an outer flap is attached to a back side of the center seam of the chest wader in conjunction with the inner flanges of the funnel. An interlocking tongue is also provided with the inner and outer flaps of the funnel housing. A wearer of the chest wader can relieve his pressure by unlocking the interlocking tongue and unfolding the inner and outer flaps of the housing through which the folded funnel is extended and unfolded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.