Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
1999-09-16
2001-05-01
Till, Terrence R. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S347000, C406S040000, C406S041000
Reexamination Certificate
active
06223387
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to the field of leaf pick-up and disposal equipment, and in particular to one having two transport bins comprising a truck with its truck box and a trailer pulled behind with its trailer box, having a blower type leaf pick-up machine mounted between the truck and trailer on a swivel platform whereby its vacuum intake port can be rotated to face both sides of the truck and trailer for picking up leaves on both sides without having to turn the truck and trailer around. The airflow discharge conduit of the leaf pick-up machine can also be rotated to face the truck box and blow leaves therein when in one position and to face the trailer box and blow leaves therein when rotated to face the opposite direction.
BACKGROUND OF THE INVENTION
Prior art devices in this general field of which the inventor has become aware include those shown and described in the following United States Patents which are readily available to the public at large and others having an interest therein:
U.S. Pat. No. 5,630,247
U.S. Pat. No. 5,359,838
U.S. Pat. No. 5,107,566
U.S. Pat. No. 4,761,943
U.S. Pat. No. 4,700,534
U.S. Pat. No. 4,659,262
U.S. Pat. No. 4,574,420
U.S. Pat. No. 4,567,623
U.S. Pat. No. 4,366,594
U.S. Pat. No. 4,322,868
U.S. Pat. No. 3,995,754
U.S. Pat. No. 3,968,634
U.S. Pat. No. 3,618,157
U.S. Pat. No. 2,510,261
SUMMARY OF THE INVENTION
The invention in this case is an improvement over the prior art in that it provides a faster way to pick up leaves that have fallen to the ground and then transporting them to a disposal site. The invention comprises a truck and truck box with sideboards and a trailer with trailer box, also having sideboards, connected behind the truck, both of which can be filled with leaves picked up on both sides of the truck and trailer while they remain parked in the same location. A mounting platform having a swivel plate is connected between the truck and trailer. A blower operated leaf pick-up machine is mounted on the swivel plate so its vacuum intake port can be rotated to face one side of the truck and trailer when rotated to a first position and rotated to face the other side of the truck and trailer when rotated to a second position. This enables a workman to pick up leaves on both sides of the truck and trailer without having to move the truck and trailer. An elongated flexible conduit about twenty feet long with a large diameter of about ten inches or so is connected to the vacuum intake port of the leaf pick-up machine and moved around within the twenty foot radius defined by the elongated conduit to suck in leaves and flow them through the vacuum intake port of the machine. A swivel discharge spout with a flexible conduit extension on the top of the leaf pick-up machine can be rotated to face the truck box in one position and to face the trailer box when rotated to face in the opposite direction. The discharge end of the conduit extension is inserted in an intake aperture of the rear wall of the truck box when rotated to face in that direction for blowing leaves into the cavity of the truck box with its vertically extending sideboards. The discharge end of the conduit extension is inserted in an intake aperture of the front wall of the trailer box when rotated to face in that direction for blowing leaves into the cavity of the trailer box with its vertically extending sideboards. The top wall of the truck box and top wall of the trailer box are open and covered with a mesh member that keeps the leaves from blowing out while at the same time allowing the blown in air to escape. A carrier comprised of spaced apart J-shaped members is mounted along the right hand side wall of the truck box to stow the elongated flexible conduit connected to the vacuum intake port of the leaf pick-up machine when it is not in use and the truck with trailer are being driven to the disposal site.
REFERENCES:
patent: 705585 (1902-07-01), Hope
patent: 2887714 (1959-05-01), Hanson
patent: 3588179 (1971-06-01), Gifford
patent: 3665545 (1972-05-01), Beekman
patent: 3717901 (1973-02-01), Johnstone
patent: 5630247 (1997-05-01), Venia
patent: 5718017 (1998-02-01), Pavlick
patent: 6003195 (1999-12-01), Whitney
patent: 6029312 (2000-02-01), Whitney
Kettelson Ernest
Till Terrence R.
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