Device for levelling of poured floors, in particular...

Details Device for levelling of poured floors, in particular... Device for levelling of poured floors, in particular...

2007-04-24

2007-04-24

Hartmann, Gary S. (Department: 3671)

Road structure, process, or apparatus

Apparatus

Tool rotating in horizontal plane

Reexamination Certificate

active

10433214

ABSTRACT:
A device for levelling a recently poured floor is disclosed wherein the device substantially comprises a frame with a drive motor, the drive shaft of which stands upright, and a rotor connected to the shaft and having two or more blades which are directed radially relative to the shaft and each of which can be placed at an angle relative to the shaft, wherein an annular support member is arranged concentrically round the drive shaft and is pivotally connected to each blade at a distance from the shaft such that a rotation of the ring brings about an equal and simultaneous tilting of each blade.

REFERENCES:
patent: 2888863 (1959-06-01), Eisenbeis
patent: 3756551 (1973-09-01), Bishop
patent: 3973857 (1976-08-01), Whiteman, Jr.
patent: 4320986 (1982-03-01), Morrison
patent: 4629359 (1986-12-01), Sengupta
patent: 4676691 (1987-06-01), Morrison
patent: 5102258 (1992-04-01), Berger
patent: 6019545 (2000-02-01), Allen et al.
patent: 0 887 489 (1998-12-01), None

Affiliated with

Also associated with

Rating

Device for levelling of poured floors, in particular... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for levelling of poured floors, in particular..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for levelling of poured floors, in particular... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3786564