Coating implements with material supply – Including means to apply material-moving force – In or at feeder
Reexamination Certificate
2000-02-11
2001-03-13
Recla, Henry J. (Department: 3751)
Coating implements with material supply
Including means to apply material-moving force
In or at feeder
C401S176000, C401S265000, C222S386000, C425S012000, C604S143000, C604S146000
Reexamination Certificate
active
06200054
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an injection device, and more particularly to an injection device for injecting filling into cracks of walls.
2. Description of the Prior Art
Typically, walls or the like may include various kinds of cracks formed therein. A filling or the like may be required to be injected into the cracks, but may not be easily injected into the cracks of the walls.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional the injection devices.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an injection device for effectively injecting a filling into the cracks of the walls.
In accordance with one aspect of the invention, there is provided an injection device for injecting a filling into a wall, the injection device comprising a first syringe including a first housing having a nozzle provided thereon for allowing the filling to be drawn into and injected out of the first housing, and a first plunger slidably engaged in the first housing for drawing and injecting the filling out of the first housing, and means for forcing the first plunger into the first housing to force the filling out of the first housing.
The forcing means includes at least one second syringe having a second housing secured to the first housing, and a second plunger slidably engaged in the second housing for vacuuming the second housing when the second plunger is pulled outward of the second housing, the second plunger is engaged with the first plunger to force the first plunger into the first housing to force the filling out of the first housing.
A securing device is further provided for securing the second housing to the first housing and includes a first securing device provided on the first housing, and a second securing device provided on the second housing and engaged with the first securing device for securing the second housing to the first housing.
A device is further provided for releasably securing the first plunger and/or the second plunger to the first housing and/or the second housing respectively, and includes at least one aperture formed in the first plunger, and a retaining rod engaged in the first housing and engaged through the aperture of the first plunger to secure the first plunger to the first housing.
The second housing includes a port, and a cap detachably engaged onto the port for enclosing the second housing and for releasing the vacuuming status of the second housing.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
REFERENCES:
patent: 4040420 (1977-08-01), Speer
patent: 4790824 (1988-12-01), Morrow et al.
patent: 4961883 (1990-10-01), Jacino et al.
Baxley Charles E.
Nguyen Tuan
Recla Henry J.
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