Dial and dial ring assembly with detenting feature
US5003802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Nov 30, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7435
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A combination lock dial ring and rotatable dial assembly for combination locks and the like designed to provide limited range top reading of the dial indicia and graduations, including a rotatable dial component having a circular dial formation and a knob formation integral therewith, wherein the dial formation has a peripheral flange formation providing a cylindrical outer surface on which dial graduation marks and numeral indicia are provided. A dial ring member includes a generally circular base wall portion and an interrupted cylindrical annular shield portion defining a forwardly opening cylindrical well to receive said dial formation nested therein. An annular detenting land formation is provided inwardly adjacent the cylindrical shield portion defining a detenting surface having a number of dial graduation marks. A resilient biased detenting plunger is provided in the dial peripheral flange formation to interact with the detenting slots to locating the graduation marks in precise alignment with a fixed index mark on the dial ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.