Self-propelled floor covering scraper machine
US5830313A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1994 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Dec 12, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1972
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self-propelled floor covering scraper machine including a frame having front and back ends, two independently controllable wheels, mounted on each side toward the back end of the frame, mechanisms for independently driving each wheel in either a forward or reverse direction, a control mechanism for steering the machine, engaging the driving mechanisms, and controlling the forward and reverse movement of each wheel, and a scraper blade mounted to the front end of the frame at an angle extending downward and forward. The adjustable scraper blade assembly includes a blade bracket, a generally flat scraper blade attachable to the blade bracket, and a shock absorber for the blade during use. The mechanism for controlling the steering and the forward and reverse movement of the vehicle uses a horizontal crossbar rotatably connected at each end to a support on the vehicle. The crossbar's axis of rotation is perpendicular to the forward motion of the vehicle. A generally T-shaped yoke having a cross portion is attached at its center to a straight portion. The other end of the straight portion is rotatably attached to the crossbar. The axis of rotation of the straight portion is perpendic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.