Bifold rake
US7584595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2007 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/067
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rake apparatus includes a tongue with a hitch, front rake arm positioners each pivotally connected to a forward portion of the tongue assembly, rear rake arm positioners pivotally connected to a rear portion of the tongue assembly, and rake arm assemblies including a rake arm assembly front end and a rake arm assembly back end. The rake arm assemblies are pivotally connected to one of the front rake arm positioners and one of the rear rake arm positioners. Distances between the rake arm assembly front ends and the tongue are greater when the rake arm assemblies are in an operating position than when they are in a traveling position. The rake arm assembly back end of each of the rake arm assemblies is positioned farther in the forward direction when the rake arm assemblies are in the operating position than when the rake arm assemblies are in the traveling position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.