Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1997-01-17
1999-09-14
Alexander, Lyle A.
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
134 9, 134 15, 134 21, 134 32, 134 33, 15 4, 15 5, 15 411, 15355, 15356, 15366, 151412, E01H 102
Patent
active
059517808
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a surface treatment method and apparatus.
This invention has particular but not exclusive application to surface treatment apparatus for treating and/or rejuvenating the playing surfaces of sporting facilities, and for illustrative purposes reference will be made to such application. More particularly the invention has particular reference to playing surfaces covered with artificial grass or turf. However, it is to be understood that this invention could be used in other applications, such as in the surface treatment of paved, painted or carpeted playing surfaces of sporting facilities are
DESCRIPTION OF THE RELATED ART
The playing surfaces of sporting facilities are frequently provided with a surface material which mimics the look of grass or turf, but gives a superior grip to prevent players skidding on the surface, and/or superior resilience to decrease the extent of injury should a player fall on the surface.
Frequently, the artificial turf is constructed of a hispid mat with the pile of the mat made up of blade like elements mimicking the colour and/or shape of blades of grass. Typically, the pile is fixed into a backing sheet to form a mat assembly, and the backing sheet and pile is embedded in a layer of sand, with the pile projecting upwardly from the sand.
Artificial turf surfaces degrade over a period of time by a combination of processes including laying down of the upwardly projecting pile elements, intrusion of foreign matter into the pile and/or the sand, build up of bacteria, slime or mould or deterioration of the drainage ability of the playing surface. Paved surfaces are also rendered unattractive and dangerous as they deteriorate with time. Accordingly such surfaces, require rejuvenation.
SUMMARY OF THE INVENTION
The present invention aims to provide surface treatment apparatus which will be reliable and efficient in use.
With the foregoing in view this invention in one aspect resides broadly in surface treatment apparatus including: material; material to provide brushed particulate material; the discharge means; heavier brushed particulate material, the heavier particulate material being returned to the surfacer, and the surface to be treated.
As used herein, the term "impact" has its ordinary meaning of the striking of one body on another and is to be distinguished from a scraping action.
Preferably, the brush means includes a composite rotary brush assembly having circumferentially spaced rows of bristles mounted on a rotatable shaft in alternate circumferential sequence with the impact means. Alternatively, the brush means may include spirally wound bristles or radially disposed bristles with impact means interposed at selected intervals. The impact means may be supported remote from the brush means.
However, the impact means is preferably pivotally mounted upon the rotatable shaft whereby the impact means includes a plurality of longitudinally spaced hammers each pivotable about an axis substantially parallel to the axis of the rotatable shaft.
In a further alternative, the impact means may be a projection extending outwardly from the rotating shaft to which the brush means is operatively attached. The impact means may be constituted by a plurality of resilient blocks substantially in the form of a rectangular prism. Suitably, the blocks are manufactured of a material which is tough and abrasion resistant, such as polyurethane or such like.
In a preferred embodiment of the invention, the brush means includes a further rotary brush assembly mounted for contrarotation relative to the composite rotary brush assembly and/or the impact means. Suitably the further rotary brush assembly and the composite rotary brush assembly are mounted on spaced transverse shafts disposed substantially parallel to one another. Moreover, the composite rot brush assembly and the further rotary brush assembly preferably each rotate so their bristles move upwardly intermediate the respective shafts.
The surface treatment apparatus may also include h
REFERENCES:
patent: 1624247 (1927-04-01), Hoover
patent: 2512544 (1950-05-01), Hammell
patent: 3748675 (1973-07-01), Schultz
patent: 3758915 (1973-09-01), Zeski et al.
patent: 4063961 (1977-12-01), Howard et al.
patent: 4209873 (1980-07-01), Schaefer
patent: 4349936 (1982-09-01), Lorson et al.
patent: 4480349 (1984-11-01), Barr
patent: 4542556 (1985-09-01), Hepple
patent: 4799286 (1989-01-01), Rubin
patent: 4825495 (1989-05-01), Van Ginhoven et al.
patent: 5018240 (1991-05-01), Holman
patent: 5218732 (1993-06-01), Pettigrew et al.
patent: 5249328 (1993-10-01), Shin
patent: 5287591 (1994-02-01), Rench et al.
patent: 5404609 (1995-04-01), Rench et al.
Alexander Lyle A.
Carrillo S.
LandOfFree
Surface treatment method and apparatus including brush means and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface treatment method and apparatus including brush means and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface treatment method and apparatus including brush means and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1506881