Not Applicable
Not Applicable
Not Applicable
1. Field of the Invention
The present invention relates to paint can tools, methods of manufacturing same, and methods of using same. More particularly, the invention relates to a combination tool including a piercing tip, prying device for paint cans, and resealing hammer.
2. Description of the Prior Art
Painters have long struggled with an issue of opening and resealing a paint can. Conventional methods have included using a screwdriver to open or pry off the paint can lid. They used a pointed object to pierce the gutter to allow the paint that catches in the gutter after pouring to drizzle back down into the can. Hammers are then used to reseal the can lid, but they generally dent them and destroy the perfect seal. This requires at least three different tools to be carried around.
Previous attempts to solve these problems have included a spring loaded gutter punch that was quite complicated, and there have been no recent advancements in this field for many years. Although there have been some attempted unitary tools that have not been designed exactly for the purpose of opening and resealing the can, those unitary prior art tools did not meet with any commercial success.
The industry needs a simple, effective all-in-one tool specific to the need of painters. A pry-tip combination with a piercing tip that will allow optimum resealing is definitely needed. A piercing tip that limits the punctured depth to stop improper size of gutter holes would also be advantageous to the industry.
Conventional gutter punches are well known in the art, including one of the most common types of an awl, or a punch that includes a sharp tip. However, to the best of my knowledge, no one has addressed the issue of punching the gutter in the appropriate place to positively and assuredly punch the hole, so that a true resealing is effected. Since the seal on the paint can is around the inner upper rim, a traditional gutter punch does not effectively seal the rim after the punch hole has been made.
Practitioners of those prior art methods and inventions have become aware of certain problems which are presented by those prior art inventions. One particular problem that has plagued users has been that the previous hammer action used has dented the can lid, leading to incomplete resealing. There are complexities which give rise to imperfect sealing, resulting in drying of a skin on top of the paint.
It would be desirable to the painting industry if there was provided an improved paint can tool, and method of making it, or a method of using a better paint can opening and resealing tool.
In accordance with the above-noted desires of the industry, the present invention provides various aspects, including a several variations of a paint can tool with a piercing tip and a depth stop. Further, there is disclosed a paint can tool with a piercing tip, a depth stop and a lid pry tab. Lastly, disclosed is a combination prying, gutter punching and resealing tool, as well as methods of making same, and methods of using it. This includes a specifically shaped pry tip, a pre-measured depth piercing tip with its depth stop, and a specific type of hammer end of the tool. This tool overcomes all of the aforementioned problems with the prior art because the pry tip design does not deform the paint can lid, the piercing tip makes the right depth of hole punch in the gutter, and it can be perfectly resealed by the hammer end.
The invention is particularly useful for applications of paint cans of very expensive paints, such as marine paints or car paints, which have become so expensive that even an ounce of paint is a significant cost portion of a re-painting. As marine paint is currently $1800 per gallon, a practitioner does not want to waste any paint, or ruin the container.
Although the invention will be described by way of examples herein below for specific aspects having certain features, it must also be realized that minor modifications that do not require undo experimentation on the part of the practitioner are covered within the scope and breadth of this invention. Additional advantages and other novel features of the present invention will be set forth in the description that follows and in particular will be apparent to those skilled in the art upon examination or may be learned within the practice of the invention. Therefore, the invention is capable of many other different aspects and its details are capable of modifications of various aspects which will be obvious to those of ordinary skill in the art all without departing from the spirit of the present invention. Accordingly, the rest of the description will be regarded as illustrative rather than restrictive.
For a further understanding of the nature and advantages of the expected scope and various aspects of the present invention, reference shall be made to the following detailed description, and when taken in conjunction with the accompanying drawings, in which parts are given reference numerals, and wherein:
Referring now to the drawings in detail,
Looking now at
Referring next to
The piercing tip 20 may include a distal tip that is either stamped to shape or taper ground to a point having an angle of from 20° to 50°, and may be from about three (3) to about ten (10) mm in length. This length dimension will depend on the size of the paint can being used, so these figures are assuming a one gallon can of paint. The exposed shank may have a stop that permits a punch depth stop of from 30 to 100 mm, while the flattened rectangular profile may have a width of from 1 to 10 mm. Preferably, the ratio of piercing tip to depth stop compared to the overall width of the tip may be 50 to about 80%. The stop shall be sufficiently dimensioned to prevent further puncture. The shank is either initially round which tapers to a rectangular stop punch profile or the shaft may be square, rectangular or any other suitable shape. Any of these may be preferred for ease of manufacturing, while maintaining integrity. Surrounding the shank will be an ergonomic high density foam grip handle with finger grips.
The hammer portion is at the proximal end of the tool, and may exhibit stand up capability. The grip handle may also have a hollow interior with a lead shot in the interior to enhance the hammer action. The handle length may be from 100-150 mm, and the hammer plate may have a depth of from 10-30 mm. Hammer end 28 may be screwed on to the handle. In another aspect of the hammer portion of my invention, there is an internal spring with weights against which the spring interacts. The weights absorb the shock during hammering action. With this design, recoil is alleviated due to the spring absorbing shock. Then there may actually be a secondary blow when the spring releases.
The curved pry and punch tip helps to pry the lid off the paint can because that gives leverage against the can without damaging the outer portion of the rim groove. The radius of the curved pry and punch tip is more suitable to the radius of the can lid. Furthermore, the curved tip can provide a rocking action that is helpful when prying off the paint can lid.
The hammer base may be flat for standing and may be from 40 to 100 mm, and preferably 50-60 mm wide at the hammer end. This hammer base is preferably round, but may be made of any suitable shape, including triangular, rectangular, round, oblong, or square. It may be flat or have short legs or it may be any suitable shape and/or depth.
The tip, shank and hammer of my tool may be made of any suitable material, including, but not limited to, stainless steel, hardened steel, brass or any other hard metal able to withstand hammering. It may be overmolded with a handle made of foam, plastic, wood or any ergonomic rubber or rubber-like material. High impact strength polyurethane may be used for portions of the tool, while softer durometer (5000-50,000) materials could be used for ergonomics. Further, the entire tool could be all metal or all plastic, and made with a wooden handle.
The shank of my tool may have a diameter of from about 30 to 80 mm, although something along the lines of 40 mm is preferred for ease of use. The diameter may be uniform, or may vary in thickness or width. The shank may include a palm rest to prevent hand damage during hammering operations.
Therefore, in accordance with the present invention, a paint can tool is disclosed for opening and resealing a can of paint with a gutter inside the circumference of the paint can, and wherein there is also a paint can lid with a normal rim. This includes a hand tool having a tool shank with a sharply pointed piercing tip at its distal end that is integral with a hand tool handle to pierce a hole in the gutter of the paint can. The piercing tip is capable of piercing a paint can gutter to produce a hole for any paint that is left over from a pour to be able to drip back into the can through the gutter. A depth stop is immediately adjacent the piercing tip to prevent the piercing tip from descending too far into the paint can gutter. This unitary tool actually provides a complete lid management system in one tool that is created for opening and automatically cleaning a paint can gutter prior to resealing with the paint can lid.
In fact, the piercing tip may have a height to width aspect ratio of from 0.25:1 to 1:3, in any shape such as square, rectangular, rhombohedral, triangular, frustoconical, taper ground flat blade, isosceles triangle or combinations thereof. Preferably, the ratio of the width of the stop compared to the width of the base of the immediately adjacent piercing tip is from 0.5:1 to 1:3. The upper flat surface of the stop is generally perpendicular to the piercing tip and is generally the same width as the broadest part of the piercing tip that is immediately adjacent.
Further, disclosed is a lid pry tab extending as a wing laterally from the distal end of the tool shank, integral with the stop and acting as a pry tab for inserting under the rim of the tool to open the paint can lid, wherein the lip pry tab may extend laterally as a wing up to 90 degrees from a longitudinal axis determined by a center line drawn through the tool shaft. Another aspect of my invention includes a design where the lip pry tab is a shallow concave shaped lip with an arcuate curvature of from 0 degrees to 180 degrees. This curvature may make it easier for prying the lid off the can.
Yet even further, disclosed is an integral hammer located on the proximal end of the paint can tool for use as a hammer to pound down the lid to reseal the lid on the can. The ratio of the weight of the hammer end to the total weight of the overall tool is from 0.25:1 to 4:1. The hammer end may include an insert with a relatively flat portion to be inserted into the handle at the proximal end, or we have tried using a threaded brass hammer knob that is threaded onto the proximal end of the handle, although this added a considerable amount of weight. In some instances, however, the extra weight is a desirable thing. The hammer may also include a cavity in the handle for an interior load of shot to increase the impact. Generally, the hammer end is made of a metal such as brass, stainless steel, hardened steel or any other suitable material, or combinations thereof.
In making the hammer end attached to the proximal end of the paint can tool, any suitable method may be used, including being threaded, press fit, surrounding the outer circumference, inserted into the handle, or it may be formed integral with the tool shank and thereafter be covered with a softer material, such as plastic or wood.
In practicing the method of using my unitary paint can tool for opening and resealing a can of paint having a gutter inside the circumference of the paint can and a paint can lid having a rim, the following steps are recommended. First, we provide my unitary paint can tool having a piercing tip and a depth stop with an integral lid pry tab at the distal end of the tool and a hammer on the proximal end of the tool. Then we pry open the lid off of the top of the paint can using the integral pry tab at the distal end of the tool. Either before or after we pour the paint out of the can, we pierce the gutter inside the circumference of the paint can with the piercing tip, being stopped at a predetermined depth by the depth stop next to the piercing tip. Then, we allow the paint in the paint gutter to drip back down into the paint can through the holes made by the piercing tip, and when we are done, we reseal the lid back onto the paint can and hammering on the lid to reseal it with a hammer at the proximal end of the paint can and tool.
A method of manufacturing a paint can tool with a functional distal end and a hammer device on the proximal end is disclosed by stamping out a suitably sized tool shaft to create a broadened distal end. The distal end of the tool shaft is ground down to create a piercing tip and then grinding a flat depth stop immediately adjacent to the piercing tip creates the depth stop. Then the tool shaft is either inserted into a tool handle or the tool handle is overmolded to create the handle. Finally, a substantially flat hammer piece is either inserted into the tool handle, threaded onto the end, or is overmolded into the proximal end of the tool.
This method yields a unitary paint can hand tool with a combination of a pry tab for lifting a paint can lid, a piercing tip to pierce the paint can gutter, a depth stop to stop the piercing tip from going too far into the gutter and a hammer on the proximal end for pounding the lid back onto the paint can. It creates an all in one tool that is perfect for a painter to use, without the need to carry around 3 separate tools. My unitary tool replaces the old way of doing things with a screwdriver for prying, an awl and a hammer for punching the gutter, and a soft hammer to reseal the lid back on the paint can. For each of the elements of my tool, the particular dimensions and ratios have not been seen before, and yield an especially useful tool that punches the exact right hole size in the gutter, and the unique pry tab configuration can easily be “walked” around the can with ease to release the lid, as well as a small hammer on the end that that will not damage the lid or the can.
In summary, numerous benefits have been described which result from employing any or all of the concepts and the features of the various specific aspects of the present invention, or those that are within the scope of the invention.
The foregoing description of a preferred embodiment of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings with regards to the specific aspects. The embodiment was chosen and described in order to best illustrate the principles of the invention and its practical applications to thereby enable one of ordinary skill in the art to best utilize the invention in various aspects and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims which are appended hereto.
The present invention is a paint can lid management tool, method of using and method of manufacturing which finds utility in the painting, restoring and refurbishing arts as a paint can tool that eliminates the need for at least two additional tools.
This application claims the benefit of priority from Provisional Patent Application No. 62/002,198, filed May 23, 2014.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/US2015/032464 | 5/26/2015 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2015/179870 | 11/26/2015 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 908346 | Smith | Dec 1908 | A |
| 2103008 | Kinast | Dec 1937 | A |
| 3844321 | Cook | Oct 1974 | A |
| 4039012 | Cook | Aug 1977 | A |
| 4234988 | Ross | Nov 1980 | A |
| 5127121 | Bossie | Jul 1992 | A |
| 5212869 | Zacharchuk | May 1993 | A |
| 5546625 | Mealey, Sr. | Aug 1996 | A |
| 5568665 | Fick | Oct 1996 | A |
| D393195 | Rose, III | Apr 1998 | S |
| 5778472 | Lang | Jul 1998 | A |
| D422860 | Vinar | Apr 2000 | S |
| 6199452 | Vinar | Mar 2001 | B1 |
| 6360444 | Fluhr | Mar 2002 | B1 |
| D513467 | Lamphere, III | Jan 2006 | S |
| 8646361 | Minnette | Feb 2014 | B2 |
| 20080178393 | Kinskey | Jul 2008 | A1 |
| 20100229689 | Minnette | Sep 2010 | A1 |
| 20150143956 | Bober | May 2015 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20160264390 A1 | Sep 2016 | US |
| Number | Date | Country | |
|---|---|---|---|
| 62002198 | May 2014 | US |