Plastic article or earthenware shaping or treating: apparatus – Hand movable – substrate traversing – plural dimension shaping...
Patent
1989-01-19
1990-10-30
Housel, James C.
Plastic article or earthenware shaping or treating: apparatus
Hand movable, substrate traversing, plural dimension shaping...
222323, 222327, 222391, 425458, B05C 1700, A23G 328
Patent
active
049665375
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to hand-operated dispensers of semi-solid or viscous materials, and is particularly intended for use in the decorative icing of cakes.
2. Description of Related Art
Dispensers for cake icing are well-known, and usually comprise either a muslin bag having a base opening, or a syringe-type mechanical device. Muslin bag dispensers are relatively difficult to use, and are only practical for relatively large and skilled operations such as occur in bakeries and restaurants. Syringe-type dispensers are simple, but often fail to produce satisfactory results as the device tends to be unsteady in the user's hand, and it is also difficult to produce a steady flow of icing.
Dispensing guns for mastics and sealants are also wellknown, and these usually comprise a frame having a handle and a trigger which press together to operate a piston which extrudes the material from the nozzle of a cartridge, the piston being advanced in steps by a one-way drive which includes a releasable blocking plate. This arrangement has not proved suitable for `artistic` operations such as cake icing, as the remote nozzle tends to wander and the flow of material is not only difficult to control but also tends to be non-uniform and to continue at least briefly after release of the trigger.
It is an object of the present invention to provide an improved but relatively simple dispenser for use primarily in the decorative icing of cakes, which is easy to operate while producing very satisfactory results.
SUMMARY OF THE INVENTION
According to the present invention there is provided a hand-held dispenser comprising: a cylindrical body to contain semi-solid material such as cake icing; a piston on a piston rod, to be driven into one end of the cylinder of the body to eject a stream of material from a nozzle-opening at the other end of the cylinder; and, a lever pivotally mounted adjacent said one end of the cylindrical body and arranged to drive the piston rod with its piston incrementally inwardly as the lever is pressed towards the cylinder, the lever being located generally alongside the cylinder so that the dispenser can be held and the lever pressed by one hand.
The cylinder may be adapted to receive material such as cake icing directly, or may be provided with a reusable or disposable liner or a cartridge-like container of the material.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which:
FIG. 1 is an exploded view showing a dispenser for cake icing;
FIG. 2 is a perspective view showing the dispenser as held by the user; and,
FIG. 3 is a perspective view showing the other side of the dispenser.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to the drawings, the dispenser comprises a cylindrical, stainless-steel body 1 having at one end a tapped ferrule 2 of plastics material which clamps a nozzle 3 in position on the body.
At its other end, the body 1 has bayonet slots 4 to receive a stainless-steel end cap 5 which carries a shaped mounting 6, and an operating mechanism 7 for a piston rod 8. A piston 9 is mounted at one end of the rod 8, and a knob 10 is secured at the other end of the rod which passes freely through the mounting 6 and the cap 5.
The operating mechanism comprises a pivotally-mounted lever or trigger 11, and a pivotal link 12 positioned to engage and drive plate 13 which is urged outwardly by a compression spring 14 around the rod 8 to abut against the mounting 6. A metal tie 15 interconnects the pivots of the lever and the link.
Preferably, a cylindrical liner 16 formed of thin plastics material is provided to nest inside the cylindrical body to carry a supply of cake icing, and the dispenser device may be provided with a number of translucent liners to receive different colours of icing, or the liners may be supplied filled with icing. A range of nozzles 3 may also be provided.
In use, with the components fitted together and with
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Bowles Margaret A.
Bowles William B.
Dixon John W.
Housel James C.
Nguyen K. P.
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