High security changeable key cylinder type shackle padlock
US4763496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | May 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7661
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A changeable key plug type padlock including a padlock body formed as an upper body section and a lower body section defining a pair of companion relatively displaceable body sections having correspondingly shaped outer peripheries in cross-section forming continuations of each other in aligned registered relation. The padlock casing has laterally spaced sockets disposed partially in both companion body sections opening through the upper portion of the padlock body for receiving legs of a shackle and a central substantially cylindrical plug cavity located between the sockets. The lower padlock body section having an elongated slideway cavity communicating with the plug cavity and extending from the zone overlying the plug cavity through one end of the lower padlock body section, defining a slideway portion bounded laterally by alternating tongue and groove formation, and the upper body section has an integral downwardly extending slide formation at the bottom thereof conforming substantially to the shape of the slideway cavity. A rotatable adaptor cam in an upper portion of the plug cavity is rotatable by the key lock plug between a locking position and first and second shackle rel…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.