Locking devices
US4567740A · kind A · utility
Inventor
Key dates
| Filing date | Sep 27, 1983 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Sep 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/496
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Locking devices for a variety of security purposes utilize a commercially available padlock of rectangular configuration having a sliding bolt (73) which bridges a recess in one side face of the padlock. A housing for this type of padlock is formed on or secured to a hasp (61) or other component which is to be locked to a staple (62). The housing has two wall portions (3, 64) and a foot portion (4) corresponding to the two main flat faces and the recessed side face of the padlock, and the padlock is a sliding fit in the housing. There is a slot (72) for entry of the staple (62) into the recess in the padlock. A guard plate (6) partly closes one end of the housing, in line with the bolt (73). Locking devices are described for locking shutters and doors, particularly on commercial vehicles, and for locking security posts for blocking driveways or roadways. In a twisting-rod housing mechanism for commercial vehicle doors, the padlock housing (1) is secured vertically to a twistable rod and the staple (226) is mounted so that it is horizontally slidable into and out of the slot in the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.