Internal pinion revolution counter and method of assembling the same
US4185188A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1978 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Sep 28, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06M1/062
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An internal pinion revolution counter includes a rotatable input shaft having first and second axial sections, and a bearing sleeve member rotatably supporting the first shaft section. A gear member is rotatably mounted on the sleeve member and has first and second axial sections, the first section having a first full tooth spur gear formed thereon. A first number wheel is secured to the second shaft section for rotation therewith, and an internal pinion transfer mechanism couples the first number wheel to the first spur gear. A second number wheel has a web portion joined to a hub portion mounted on the first spur gear for rotation therewith, and the second section of the gear member has a spur gear segment formed thereon as an extension of the first spur gear. A locking ring has a hub portion mounted on the second section of the gear member, and having an axial slot formed therein with the gear segment extending therethrough, the hub portion of the locking ring having an annular outer locking cam surface. The locking ring has an annular flange portion extending radially outwardly from the hub portion, the flange portion being secured to the web portion of the second number wheel.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.