Grout tool

Abstract: A hand-held grout-dispensing tool (10) having a body portion defining an expandable generally triangular envelope member (16), an open but sealable by folding reinforced top edge (20), a grip portion (22) on one lower edge, and a flexible spout portion (24) enabling adjustable dispensing of grout.

Description: TECHNICAL FIELD This invention relates generally to tools used with grout, cement, and related substances, and more specifically to an improved hand-held grout-dispensing tool. BACKGROUND ART Grout is a widely used construction material and is often applied to a working surface by using a flexible cone or funnel device which is squeezed at the top to dispense a stream of grout through a rigid spout (much like a cake decorating tool). One such device, from which the present invention proceeds, is described in US-A-3,138,821. Alternatively grout may be dispensed from a collapsible bag which can be re-filled through the dispensing orifice. An example of this type of device is described in US-A-3,200,996. Known grout dispensing devices are flimsy, prone to leakage, difficult to clean, and do not enable flow adjustment. DISCLOSURE OF THE INVENTION The grout tool of this invention provides an improved hand-held grout-dispensing tool comprising: a body portion defining an expandable, generally triangular envelope member having first, second and third edges, said first edge providing an open top sealable by folding, the envelope member further having a spout portion between said second and third edges, characterised in that a grip portion extends outwardly from said second edge, the grip portion being of a size to be grasped by a user's hand and capable of being folded flat against the body portion, the spout portion being flexible and located proximate the grip portion. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an embodiment of the grout tool of this invention when in use and having applied a bead of grout to a working surface. The body portion of the tool defines an expandable, generally triangular envelope member; a fill opening temporarily sealed by the folding of a reinforced top edge; a hand hold or grip portion on one lower edge; and a tapered, flexible end or spout portion at the bottom for grout dispensing; Fig. 1A is a further perspective view of the grout tool of Figure 1 when in use illustrating the preferred placement of the user's two hands on the folded reinforced top edge and grip portions of the grout tool, respectively; and Fig. 2 is a side elevation view of the grout tool of Figure 1 illustrating the generally triangular envelope member in its unfolded, empty and flattened configuration. BEST MODE FOR CARRYING OUT THE INVENTION Fig. 1 is a perspective view of an embodiment of the grout tool 10 of this invention when in use and having applied a bead of grout 12 to a working surface 14. As illustrated the body of the tool defines an expandable, generally triangular envelope member 16; a fill opening 18 temporarily sealed by the folding of a reinforced top edge 20; a hand hold or grip portion 22 on one lower edge; and a tapered, flexible end or spout portion 24 at the bottom for grout dispensing. The advantages of the reinforced (e.g., double folded) top edge 20 include: 1. The fill opening 18 stays open easily to allow simple filling of the tool with grout; 2. Once closed and folded (as illustrated), grout seepage in the fill opening area is avoided; 3. The linear top edge applies even pressure to the grout for a more even flow of grout through the spout; and 4. This configuration evenly pushes grout off the inner surfaces of the envelope. The advantages of the hand hold or grip portion 22 configuration include: 1. The grip easily rests in the palm of the user's hands to enable adjustment of grout flow from the spout by the user's thumb and fingers; 2. The grip can alternatively be held between thumb and fingers for non-restrictive flow of grout through the spout; and 3. The grip can also be folded flat against either side of the grout tool to enable extra flow pressure at the grout spout and streamline the grout dispensing end of the grout tool. The advantages of the tapered, flexible spout portion 24 include: 1. The flexibility of the spout portion enables regulation of the grout flow by adjustment with the user's thumb and index finger; and 2. The spout portion is tapered to reduce spillage and allow flow adjustment. Fig. 1A is a further perspective view of the grout tool 10 of Figure 1 when in use illustrating the preferred placement of the user's two hands 26, 28 on the folded reinforced top edge 20 and grip portions 22 of the grout tool, respectively. Manual pressure by hand 26 on top edge 20 exerts pressure on the grout mixture inside the envelope 16, forcing it out through spout 24. Selective placement of hand 28 on grip 22 or proximate flexible spout 24 determines flow rate, thickness, and the like. Fig. 2 is a side elevation view of the grout tool 10 of Figure 1 illustrating the generally triangular envelope member 16 in its unfolded, empty and flattened configuration. In the preferred embodiment, envelope 16 is made of neoprene or other suitably strong, flexible, waterproof material. Neoprene is especially appropriate due to its inherent "slipperiness" when filled with grout or like substances. The envelope can be manufactured from a single piece of material, folded along edge 30 and stitched with nylon thread to form edge 32 and grip 22. Reinforced top edge 20 can be formed by similar folding and stitching techniques. Fasteners 34 may be installed between the top edge 20 and edge 32, and between grip 22 and spout 24, to further strengthen the construction. While the envelope can of course be made in any size, suitable dimensions are as follows: approximately 0.406m (sixteen inches) in overall length along edged 30, and 0.305m (twelve inches) wide along reinforced top edge 20. Grip 22 may be a continuous extension of material measuring 0.121m (four and three-quarters inches) by 0.035m (one and three-eights inches), and the reinforcement of top edge 20 may consist of a 0.025m (one inch) fold, each stitched and fastened as appropriate. Spout 24 may be 0.025m (one inch) wide, tapered from edge 30 to edge 32 by approximately 6.35 x 10 -3 m (one-quarter inch). The junction of edge 30 with top edge 20 may, but does not necessarily, define a right angle. While this invention has been described in connection with preferred embodiments thereof, it is obvious that modifications and changes therein may be made by those skilled in the art to which it pertains without departing from the scope of the invention. Accordingly, the scope of this invention is to be limited only by the appended claims.

Claims: A tool (10) for dispensing grout (12) to a working surface (14), the tool (10) comprising: a body portion (16) defining an expandable, generally triangular envelope member having first, second and third edges (20,32,30), said first edge (20) providing an open top (18) sealable by folding, the envelope member further having a spout portion (24) between said second and third edges (32,30), characterised in that a grip portion (22) extends outwardly from said second edge (32), the grip portion (22) being of a size to be grasped by a user's hand and capable of being folded flat against the body portion (16), the spout portion (24) being flexible and located proximate the grip portion (22). The grout tool of claim 1, wherein said first edge (20) is reinforced. The grout tool of claim 1 or claim 2, wherein the envelope member is made from a single sheet of material and said first edge (20) is reinforced by being folded double and then stitched. The grout tool of any preceding claim, wherein the envelope member is made from a single sheet of material and the grip portion (22) comprises a contiguous extension of said material from said second edge (32). The grout tool of any preceding claim, wherein the envelope member is made from a single sheet of material folded once to define said third edge (30) and sealed to define said second edge (32), the flexible spout portion (24) comprising an opening between said second edge (32) and said third edge (30). The grout tool of any preceding claim, wherein the spout portion (24) is tapered. The grout tool of any preceding claim, wherein the envelope member is made of neoprene. The grout tool of any preceding claim, wherein the envelope member is made of a single sheet of neoprene that has been folded once to define said third edge (30), stitched to define said second edge (32), and folded double and stitched to define said first edge (20). The grout tool of any preceding claim, including a reinforcing fastener (34) between said first edge (20) and said second edge (32) and between the grip portion (22) and the spout portion (24). The grout tool of any preceding claim wherein said first edge (20) and said third edge (30) meet at a right angle.

Inventors: BURTIS WARREN ARTHUR, BURTIS, WARREN ARTHUR
Applicants: BURTIS WARREN ARTHUR, BURTIS, WARREN ARTHUR
Application year: 1992
Main classification: E04F21
IPC codes: E04F21, A21C15, B05C17