The invention relates to a drywall or wallboard tape and joint compound dispenser and method. More specifically, the invention relates to a tool used in applying joint compound to drywall tape and a method for applying joint compound to drywall tape.
The joints formed between adjoining drywall or wallboard panels are generally covered with a lamination of joint compound and fibrous drywall tape to hide the cracks or seams defined by and between the abutting panels. Joint compound and tape are typically applied manually by trowel or by a pressurized hand-operated tape and compound applicator to lay down a thin layer of compound and tape over each joint. The compound is typically applied only to that side of the tape which faces the wallboard panel.
Once the initial layer or coat of joint compound and tape is applied, it is smoothed over with a tool, such as a taping knife or trowel, and allowed to dry overnight. A relatively narrow and thin coating of joint compound is subsequently applied over the initial lamination of joint compound and tape using a trowel or a pressurized joint compound applicator. This second operation covers the exposed or outer side of the drywall tape and sandwiches the tape between the first layer of joint compound and the newly applied layer.
This second layer of joint compound is then allowed to dry. After it dries, a third wider layer of joint compound is then applied over the second layer. Sanding is then required to smooth over the joint.
Numerous dispensers have been developed for applying a substance to a strip of material prior to application of the strip to another surface, including drywall joint compound dispensers which apply compound to the tape prior to application of the tape on the seams of wallboards. Examples of these prior art dispensers are shown in U.S. Pat. Nos. 3,496,909; 3,513,809; 3,381,661; 3,292,575; 4,067,294; 1,935,060; 2,717,575; 2,679,232; 2,779,307; and 4,159,695.
Although these known prior art dispensers serve their intended purposes, including providing solutions to many problems experienced in drywall installation, most of these dispensers are complicated devices which are expensive to manufacture and are time-consuming and expensive to maintain in proper working condition since they include moving parts subject to wear which ultimately require repair or replacement. Further, such dispensers typically are bulky and, thus, occupy significant space as they are stored and/or transported.
The present invention provides a drywall tape dispenser and method that deposits drywall joint compound on tape as the tape is dispensed from the dispenser. More particularly, different regions of the tape are coated with joint compound having different thicknesses. This facilitates seam filling as the tape is applied to a seam (e.g., the extra joint compound is deposited on a region of the tape that covers the seam). Additionally, the present invention provides a drywall tape dispenser that can be stacked, wherein when stacked, the dispensers nest with one another so as to enable one to store multiple dispensers in a compact space. Further, the dispenser can be easily cleaned, and simple to manufacture.
According to one aspect of the invention, a dispenser for dispensing drywall tape and joint compound includes a first port configured to deposit the joint compound on a first region of the tape at a first thickness, and to deposit the joint compound on a second region of the tape at a second thickness, wherein the first thickness is greater than the second thickness. Preferably, the first region of the tape includes a longitudinal centerline of the tape, and the second region of the tape includes at least one edge of the tape that is parallel to the longitudinal centerline of the tape.
The port can be formed to have a hemispherical, triangular or step configuration. Additionally, the dispenser can include a first receptacle for holding the drywall joint compound, wherein the first port is formed in the first receptacle. The dispenser can also include a tape holder for holding the tape, and a second port formed in the first receptacle, the second port configured to receive tape from the tape holder.
According to another aspect of the invention, there is provided a stackable drywall tape and joint compound dispenser that includes a tape holder and a reservoir for storing drywall joint compound. The dispenser can be configured such that when the dispenser is placed on another dispenser of substantially the same configuration, at least one of the respective tape holders and/or reservoirs of each dispenser nest with one another.
Preferably, at least one of the tape holder and reservoir are tapered such that an upper region of the tape holder or reservoir is wider than a lower region the tape holder or reservoir. The tape holder and/or reservoir can be formed in a V-shape, such that an angle formed between a floor of the tape holder (and/or reservoir) and a wall of the respective tape holder (and/or reservoir) is obtuse.
More particularly, a configuration of the tape holder can be different from a configuration of the reservoir. Additionally, the tape holder and reservoir can be formed having rectilinear or curvilinear shapes.
Yet more particularly, the reservoir can include an input port for receiving drywall tape, and an output port for dispensing drywall tape coated with joint compound. At least one of the input port and the output port can be formed so as to inhibit leakage of joint compound from the reservoir. Leakage from the input port and/or output port can be inhibited by forming the respective ports to follow a contour of the reservoir.
More particularly, the dispenser can be a multi-piece dispenser or single piece dispenser. Further, the dispenser can be configured with no moving parts, and/or can include a channel that guides the drywall tape through a pre-determined path within the dispenser.
Yet more particularly, the dispenser can include a cutting edge, such as a sharp or serrated edge, for cutting the drywall tape. Further, the dispenser can include a selectively retractable platform coupled to the dispenser. The platform can be coupled to the dispenser via a hinge, such as a rotatable or elastic hinge, and the platform can be detachable from the dispenser.
To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative embodiments of the invention. These embodiments are indicative, however, of but a few of the various ways in which the principles of the invention may be employed.
In the detailed description that follows, corresponding components have been given the same reference numerals, regardless of whether they are shown in different embodiments of the present invention. To illustrate the present invention in a clear and concise manner, the drawings may not necessarily be to scale.
The present invention will now be described in conjunction with the drawings. Referring initially to
The dispenser 10 includes a tape holder 20 and a reservoir 22. Drywall tape 24, such as a roll of drywall tape, is placed in the tape holder 20 of the dispenser 10 and the tape is threaded through a first elongated guide slot 26, which, via a channel 27 (
As the drywall tape 24 is extracted from the dispenser 10, the tape 24, via the first elongated guide slot 26 and channel 27 (
As used herein, a reservoir or receptacle is to be construed broadly, and includes a basin, a trough, a container, or the like, that can hold an object or substance in solid, semi-solid, or liquid form. A reservoir or receptacle, as used herein, is not limited to a long and narrow shape as shown in the figures, but can be any shape, including rectilinear shapes, e.g., a frustrum, a wedge, etc., and curvilinear shapes, e.g., a sphere segment, one half of a right circular cylinder, etc., that facilitates dispensing mud 30 and/or drywall tape 24.
The dispenser 10 can be a multi-piece unit having a body 40 and a detachable base 42. Selectively operable retainers 44, such as clips or the like, may hold the base 42 to the body 40. The selectively operable retainers 44 also allow the base 42 to be positioned in one of a plurality of different orientations with respect to the body 40. By adjusting the position of the base 42 with respect to the body, a height 28a of the second elongated slot 28 can also be adjusted. This is advantageous in that it permits an amount of mud 30 deposited on the extracted tape 24 to be set or controlled. If more mud is desired on the tape, the base 42, via the selectively operable retainers 44, can be adjusted to increase an overall height 28a of the second guide slot 28. Alternatively, if less mud 30 is desired on the extracted tape 24, the base 42 can be adjusted to decrease the overall height 28a of the second guide slot 28.
In another embodiment, the base 42 can have a tapered or sloped surface in the region of the elongated slot 28. The slope of the base 42 can be used to adjust the amount of mud deposited on the tape simply by positioning the base further forward or backward with respect to the body 40. For example, the slope can increase along the base 42, with a low portion being near the cutting edge 32 and a higher portion away from the cutting edge 32. If less mud is desired on the tape 24, the base 42 can be moved forward with respect to the body 40 such that the height 28a of the elongated slot 28 is reduced. Conversely, if additional mud is desired on the tape 24, the base 42 can be moved backward with respect to the body 40 such that the height 28a of the elongated slot 28 is increased. As will be appreciated, the base and/or body can be provided with a number of selectively operable retainers 44 at various locations such that the base 42 can be secured to the body 40 in any one of a number of locations.
Further, the detachable base 42 facilitates cleaning of the dispenser 10. Moreover, and as will be discussed in more detail below, once the base 42 is detached from the body 40, multiple bodies 40 can be stacked together such that the bodies 40 nest with one another. This is particularly advantageous for shipping and/or stocking the dispenser 10 in retail stores, as significantly less space is occupied when the bodies are nested. Multiple bases 42 also may be stacked on one another.
The body 40 includes end walls 50a and sidewalls 50b (collectively referred to as walls), which, in conjunction with a divider wall 52, define the walls of the tape holder 20 and the reservoir 22. The walls 50a, 50b and the divider wall 52 are tapered such that top regions 54a of the tape holder 20 and/or reservoir 22 are wider than bottom regions 54b of the tape holder and/or reservoir. For example, an angle 56 (
While the dispenser 10 is shown as having a tape holder 20 and reservoir 22 that are substantially equal in shape and size, it will be appreciated that the tape holder and reservoir may have different dimensions and/or different configurations from one another. For example, the reservoir 22 may be larger than the tape holder 20, thereby accommodating a larger volume of mud. Alternatively, the tape holder 20 may have a curvilinear shape, while the reservoir 22 may have a rectilinear shape. Further, the tape holder 20 may be formed having a structure significantly different from the reservoir 22. For example, and referring briefly to
With further reference to
Accordingly, a drywall tape dispenser according to the first embodiment of the present invention enables one to stack the dispenser bodies 40 such that the bodies nest with one another. Further, the base 42 can be easily removed from the body 40, thereby facilitating cleaning of the dispenser.
Referring now to
Like the previous embodiment, as the drywall tape 24 is extracted from the dispenser 100, the tape 24, via the first, second and third elongated guide slots 102, 104106, passes from the tape holder 20 to the mud filled reservoir 22 and out of the dispenser 100, thereby becoming coated with a layer of mud 30. The coated drywall tape 24 can be torn or cut as needed while leaving a free end of drywall tape 24a outside the dispenser 100. This free end 24a then is available for grasping and pulling more drywall tape 24 from the dispenser 100 at a later time. The coated tape 24 then can be applied to wallboard panels as described previously.
The dispenser 100 includes end walls 110a and sidewalls 110b (collectively referred to as walls), which, in conjunction with a divider wall 112, define the walls of the tape holder 20 and the reservoir 22. The walls 110a, 110b, and the divider wall 112 are tapered such that top regions 54a of the tape holder 20 and reservoir 22 are wider than bottom regions 54b of the tape holder and reservoir. The wall taper facilitates nesting of multiple dispensers 100, wherein as the dispensers are stacked, the tape holder 22 and reservoir 20 of each dispenser 100 nest with the tape holder and reservoir of adjacent dispensers. Nesting of the dispensers 100 is illustrated in
Depending on the consistency of the mud placed in the reservoir 22, it may be possible for some mud to “leak” from the second and third elongated slots 104, 106 of the dispenser 100. To minimize or prevent leakage from the respective slots 104, 106, the slots may include extensions that follow a contour of the reservoir 22, wherein an entry point (or exit point) for the elongated slot is placed at a level likely to be higher than a level of mud in the reservoir 22.
Accordingly, a drywall tape dispenser 100 according to the second embodiment of the invention can be formed as a one-piece unit and with no moving parts. Moreover, the dispenser 100 can be stacked one on top of another, wherein adjacent dispensers nest with one another.
Referring now to
Moving now to
The guide slot 202 provides a means for drywall tape 24 to be extracted from the dispenser 200, wherein as the tape 24 is extracted it passes through the first receptacle and is coated with a layer of joint compound 30 (e.g., the guide slot 202 functions as a portal from inside the reservoir 22 to outside the dispenser 200). The guide slot 202 is configured such that as drywall tape 24 is extracted, joint compound 30 is applied to the tape 24 at varying thicknesses. More particularly, the guide slot 202 is configured such that a thicker layer of joint compound 30 is applied to inner regions of the tape relative to outer regions of the tape. The additional joint compound 30 on the inner regions of the tape 24 is advantageous, for example, when placing the tape 24 over a seam, as the additional joint compound thoroughly fills gaps within the seam.
As used herein, an outer region of the tape refers to a region beginning at the longitudinal sides (e.g., outer longitudinal edges) of the tape and ending a predetermined distance from the longitudinal centerline of the tape. The inner region of the tape refers to a region that includes the longitudinal centerline of the tape and remaining portions of the tape not considered to be part of the outer region.
For example, and briefly referring to
It is noted that above relationship between the outer and inner regions is merely exemplary, and other relationships are possible without departing from the scope of the invention. For example, and again assuming drywall tape 24 that is 2 inches wide, each outer region may span ¼ inch, and the inner region may span 1.5 inches. As will be appreciated other dimensional relationships between the inner and outer regions are possible.
The exemplary guide slot 202 shown in
Referring briefly to
Although a two-step configuration is shown in
Although the invention has been shown and described with respect to a certain preferred embodiment or embodiments, it is obvious that equivalent alterations and modifications will occur to others skilled in the art upon the reading and understanding of this specification and the annexed drawings. In particular regard to the various functions performed by the above described elements (components, assemblies, devices, compositions, etc.), the terms (including a reference to a “means”) used to describe such elements are intended to correspond, unless otherwise indicated, to any element which performs the specified function of the described element (i.e., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary embodiment or embodiments of the invention. In addition, while a particular feature of the invention may have been described above with respect to only one or more of several illustrated embodiments, such feature may be combined with one or more other features of the other embodiments, as may be desired and advantageous for any given or particular application.
This application is a continuation-in-part of U.S. application Ser. No. 11/190,298 filed on Jul. 27, 2005, which is incorporated herein by reference in its entirety.
Number | Date | Country | |
---|---|---|---|
Parent | 11190298 | Jul 2005 | US |
Child | 12466051 | US |