Centerline sight with reverse pendulum
US4511005A · kind A · utility
6Cited by
11References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Nov 7, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B69/001
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tractor guidance apparatus includes a laterally adjustable sight equipped with a reverse pendulum whereby an upright pivotal sight needle is moved in the same transverse direction as the depending pendulum in response to pivotal movement of the pendulum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.