Padlock shackle
US4561272A · kind A · utility
22Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 1984 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Jul 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12806
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A padlock shackle made of an inner core of ductile nickel-titanium alloy, outer casing of hardened stainless steel, and an intermediate layer of a composite of tungsten carbide particles in a nickel-titanium alloy matrix which is bonded to the nickel-titanium alloy core and mechanically bonded to the stainless outer casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.