Swimming flipper and method for its manufacture
US5435764A · kind A · utility
33Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B31/11
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Swimming flipper formed by a blade and a shoe, wherein the blade comprises a body of an ethylene vinyl acetate-based polymer made by injection moulding and at least partially covered by at least one flexible and elastic film of polyethylene additioned with ethylene vinyl acetate, having a decorative and/or protective and/or mechanical function. The film is applied onto and permanently connected by chemical-thermal adhesion to the body of the blade, directly during the moulding operation thereof, being previously inserted within the mould as an insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.