WO2006001772A1 - A scraping blade for paint scraper intended for removing paint - Google Patents
A scraping blade for paint scraper intended for removing paint Download PDFInfo
- Publication number
- WO2006001772A1 WO2006001772A1 PCT/SE2005/001012 SE2005001012W WO2006001772A1 WO 2006001772 A1 WO2006001772 A1 WO 2006001772A1 SE 2005001012 W SE2005001012 W SE 2005001012W WO 2006001772 A1 WO2006001772 A1 WO 2006001772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- scraping
- paint
- scraper
- edge
- scraper blade
- Prior art date
Links
- 238000007790 scraping Methods 0.000 title claims abstract description 75
- 239000003973 paint Substances 0.000 title claims abstract description 49
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
- B44D3/162—Scrapers
- B44D3/164—Scrapers comprising blades
Definitions
- the present invention relates to a scraper blade for paint scraper intended for removing paint from a surface, comprising at least one scraping edge, the scraping edge being divided into at least two abutting portions extending along the scraping edge, which, upon abutting scraping action, extend transversely to the di ⁇ rection of scraping. Further, the present invention relates to a paint scraper com ⁇ prising said scraper blade.
- GB 208,317 discloses a paint scraper having its blade disposed in a plate at a right angle to a handle, the edge of the blade being provided with pointed teeth.
- US 4,200,948 describes a paint scraper which has a blade holding portion having a holding slot, in which slot a blade is releasably mounted. The blade has two different, opposed edges. The first edge is straight and smooth, and the sec ⁇ ond edge is serrated and has pointed teeth.
- US 4,759,092 discloses a scraper provided with a releasable, sawtoothed edge.
- US 3,789,450 describes a painter's tool comprising an angular shaped blade, the first edge of which is straight and the second edge of which comprises a straight edge portion and an edge portion having angular shaped, pointed teeth.
- GB 1 ,265,189 discloses a tool for removing paint, which comprises a plurality of metal blades, the edges of which are serrated and have pointed teeth
- US 4,704 795 describes a scraper device which is equipped with a scraper blade in the form of a conventional hack saw blade.
- edge with sharp, pointed or cornered scraping teeth results in the edge being able to scratch and damage the underlying surface, which in some cases is uneven, and easily getting stuck in a "grip" to the intended surface during removal of paint.
- paint scrapers having pointed scraping teeth have poor scraping effect, since pointed scraping teeth have a very small abutting surface with the surface.
- the object of the present invention is therefore to provide a scraper blade and a paint scraper which require less force to remove covering, especially paint, from a surface, without scratching and damaging the underlying surface, and which have an effective scraping effect.
- a scraper blade for a paint scraper intended for removing paint of the kind defined in the preamble of claim 1 where the scraper blade comprises the special feature that each abutting portion is convex in the plane of the scraping edge, whereby an effective scraping effect is obtained.
- the abutting portions are the portions which engage with the covering, the layer of paint, e.g., and provide a scraping effect on said covering.
- coverings such as layers of paint, which cover various surfaces, are assumed to be more or less soft.
- scraping abutting points are obtained at several different levels in the paint, providing a scraper blade with a more effective scraping of rough surfaces and layers of paint, but also of more even layers of paint, compared to conventional scraper blades.
- Scraping abutting points at several different levels in the paint upon abutting scraping action, results in less force being required, upon scarping the surface, to remove paint, whereby the scraping becomes easier and the risk for damaging the surface under the paint is minimized.
- the convexity of the abutting por ⁇ tions results in the avoidance of damaging the surface, in the form of scratches, since no sharp edges risk scratching the surface.
- each abutting portion is continuous in the plane of the scraping edge, in that each abutting portion extends continuously along a continu ⁇ ous curve.
- the scraping edge is wave shaped in the plane of the scraping edge, and each abutting portion forms a part of a crest of the wave shape. This embodiment is especially suitable for considerably rough surfaces and layers of paint having many valleys and elevations.
- the scraping edge can also be wave shaped transverse to the plane of the scraping edge. This provides abutting portions which are displaced in the direction of scraping, which also enhances the scraping effect of the scraper blade.
- the longitudinal extensions of the abutting por ⁇ tions are of different lengths. This further enhances the scraping effect, inter alia, when the surface and the layer of paint are rough, and prevents an abutting por- tion, upon scraping action, from going into a furrow formed by another abutting portion having the same longitudinal extension.
- each abutting portion upon abutment, makes an angle with the surface, in the plane of the scraping edge, which is always less than 90°, preferably less than 30°.
- each abutting portion upon abutment, makes an angle with the surface, in the plane of the scraping edge, which is less than 15°.
- the present invention provides a paint scraper for removing cover ⁇ ing, especially paint, from a surface, where said paint scraper comprises a scraper blade according to any of the claims 1 to 6.
- Fig. 1 is a schematic side view of an embodiment of the scraper blade according to the present invention
- Fig. 2 is a cross section of the embodiment of Fig. 1
- Fig. 3 is a perspective view of an embodiment of the paint scraper according to the present invention.
- Fig. 1 shows an embodiment of the scraper blade according to the present invention, the both longitudinal margins of which are transversally chamfered (see Fig. 2), which substantially provides two longitudinal scraping edges, a first scrap ⁇ ing edge 5 at the upper longitudinal margin of the scraper blade, and a second scraping edge 6, opposite the first scraping edge 5, at the lower longitudinal mar ⁇ gin of the scraper blade.
- the first and second scraping edges 5, 6, of the embodi- ment are divided into several abutting portions 7.1 , 7.2, 7.3, 8.1 , 8.2, which, upon abutting scraping action, extend transversely to the direction of scraping, and ad ⁇ ditionally are continuous in the plane of each scraping edge 5, 6.
- Each scraping edge 5, 6 is wave shaped in its scraping edge plane, and each abutting portion 7.1 , 7.2, 7.3, 8.1 , 8.2 is convex in the plane of the scraping edge 5, 6 and forms a part of a crest of the wave shape.
- the longitudinal extensions of the abutting por ⁇ tions 7.1 , 7.2, 7.3, 8.1 , 8.2 in the plane of each scraping edge 5, 6 are of different lengths.
- Each abutting portion 7.1 , 7.2, 7.3, 8.1 , 8.2 upon abutment, makes an angle with the surface, in the plane of the scraping edge 5, 6, which is always less than 90°, but preferably said angle is less than 30°, more preferably less than 15°.
- Fig. 2 shows a cross section of the embodiment of Fig. 1.
- An elon- gated scraper blade can for example be provided with two scraping edges at one longitudinal margin, or the scraper blade itself can have another overall design, but still comprise the unique scraping edge according to the present invention.
- the scraper blade can for example be triangular, provided with a scraping edge along all or any of the margins of the triangle shape.
- Fig. 3 shows a perspective view of an embodiment of the paint scraper ac ⁇ cording to the present invention, to which the scraper blade of Figures 1 and 2 is attached, for scraping with one of the scraping edges 6.
Landscapes
- Coating Apparatus (AREA)
- Cleaning In General (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
A scraper blade for paint scraper intended for removing paint from a surface, comprising at least one scraping edge (5, 6). The scraping edge (5, 6) is divided into at least two abutting portions (7.1, 7.2, 7.3, 8.1, 8.2) extending along the scraping edge, which, upon abutting scraping action, extend transversely to the direction of scraping, each abutting portion (7.1, 7.2, 7.3, 8.1, 8.2) being convex in the plane of the scraping edge (5, 6), whereby an effective scraping effect is provided. A paint scraper comprising said scraper blade.
Description
A SCRAPING BLADE FOR PAINT SCRAPER INTENDED FOR REMOVING PAINT
Technical Field The present invention relates to a scraper blade for paint scraper intended for removing paint from a surface, comprising at least one scraping edge, the scraping edge being divided into at least two abutting portions extending along the scraping edge, which, upon abutting scraping action, extend transversely to the di¬ rection of scraping. Further, the present invention relates to a paint scraper com¬ prising said scraper blade.
Background of the Invention Most of the prior paint scrapers, i.e., tools having a blade used for remov¬ ing paint from a painted surface, generally have a blade with a straight/planar edge which is applied to the surface so that the whole edge is abutting against the surface. Essentially, a linear abutting surface with said surface is provided. Therefore, a great force is needed to "pierce" the upper paint layer, so that the edge can get a "grip" and penetrate the paint, down to the underlying surface which shall be uncovered. In order to solve this problem there are prior paint scrapers with a blade having an edge which is provided with pointed scraping teeth, so that the edge obtain a saw blade design. GB 208,317 discloses a paint scraper having its blade disposed in a plate at a right angle to a handle, the edge of the blade being provided with pointed teeth. US 4,200,948 describes a paint scraper which has a blade holding portion having a holding slot, in which slot a blade is releasably mounted. The blade has two different, opposed edges. The first edge is straight and smooth, and the sec¬ ond edge is serrated and has pointed teeth. US 4,759,092 discloses a scraper provided with a releasable, sawtoothed edge. US 3,789,450 describes a painter's tool comprising an angular shaped blade, the first edge of which is straight and the second edge of which comprises a straight edge portion and an edge portion having angular shaped, pointed teeth. GB 1 ,265,189 discloses a tool for removing paint, which comprises a plurality of metal blades, the edges of which are serrated and have pointed teeth
US 4,704 795 describes a scraper device which is equipped with a scraper blade in the form of a conventional hack saw blade. US 3,530,524, upon which the preamble of claim 1 is based, discloses a scraper blade for paint scraper intended for removing paint from a surface, com- prising a scraping edge, the scraping edge being divided into several abutting por¬ tions extending along the scraping edge, which, upon abutting scraping action, extend transversely to the direction of scraping. These abutting portions extend parallel to said surface. These pointed or cornered scarping teeth of the edges of the above men- tioned paint scrapers and tools easily pierce the upper paint layer so that the edge can get a "grip" and penetrate the paint down to the underlying surface. However, the design of the edge with sharp, pointed or cornered scraping teeth, results in the edge being able to scratch and damage the underlying surface, which in some cases is uneven, and easily getting stuck in a "grip" to the intended surface during removal of paint. Further, paint scrapers having pointed scraping teeth have poor scraping effect, since pointed scraping teeth have a very small abutting surface with the surface.
The Object of the Invention The object of the present invention is therefore to provide a scraper blade and a paint scraper which require less force to remove covering, especially paint, from a surface, without scratching and damaging the underlying surface, and which have an effective scraping effect.
Summary of the Invention The above mentioned object is attained by providing a scraper blade for a paint scraper intended for removing paint of the kind defined in the preamble of claim 1 , where the scraper blade comprises the special feature that each abutting portion is convex in the plane of the scraping edge, whereby an effective scraping effect is obtained. The abutting portions are the portions which engage with the covering, the layer of paint, e.g., and provide a scraping effect on said covering. In this respect, coverings, such as layers of paint, which cover various surfaces, are assumed to be more or less soft. By the convex abutting portions, upon abutting scraping action, scraping abutting points are obtained at several different levels in the paint, providing a
scraper blade with a more effective scraping of rough surfaces and layers of paint, but also of more even layers of paint, compared to conventional scraper blades. Scraping abutting points at several different levels in the paint, upon abutting scraping action, results in less force being required, upon scarping the surface, to remove paint, whereby the scraping becomes easier and the risk for damaging the surface under the paint is minimized. Further, the convexity of the abutting por¬ tions results in the avoidance of damaging the surface, in the form of scratches, since no sharp edges risk scratching the surface. According to an advantageous embodiment of the scraper blade according to the present invention, each abutting portion is continuous in the plane of the scraping edge, in that each abutting portion extends continuously along a continu¬ ous curve. According to another advantageous embodiment of the scraper blade ac¬ cording to the present invention, the scraping edge is wave shaped in the plane of the scraping edge, and each abutting portion forms a part of a crest of the wave shape. This embodiment is especially suitable for considerably rough surfaces and layers of paint having many valleys and elevations. The scraping edge can also be wave shaped transverse to the plane of the scraping edge. This provides abutting portions which are displaced in the direction of scraping, which also enhances the scraping effect of the scraper blade. According to yet another advantageous embodiment of the scraper blade according to the present invention, the longitudinal extensions of the abutting por¬ tions are of different lengths. This further enhances the scraping effect, inter alia, when the surface and the layer of paint are rough, and prevents an abutting por- tion, upon scraping action, from going into a furrow formed by another abutting portion having the same longitudinal extension. According to a further advantageous embodiment of the scraper blade ac¬ cording to the present invention, each abutting portion, upon abutment, makes an angle with the surface, in the plane of the scraping edge, which is always less than 90°, preferably less than 30°. According to another advantageous embodiment of the scraper blade ac¬ cording to the present invention, each abutting portion, upon abutment, makes an angle with the surface, in the plane of the scraping edge, which is less than 15°.
Further, the present invention provides a paint scraper for removing cover¬ ing, especially paint, from a surface, where said paint scraper comprises a scraper blade according to any of the claims 1 to 6.
Brief Description of the Drawings The present invention will now be described, for exemplary purposes, in more detail by way of embodiments and with reference to the enclosed drawings, in which: Fig. 1 is a schematic side view of an embodiment of the scraper blade according to the present invention, Fig. 2 is a cross section of the embodiment of Fig. 1 , and Fig. 3 is a perspective view of an embodiment of the paint scraper according to the present invention.
Detailed Description of the Invention Fig. 1 shows an embodiment of the scraper blade according to the present invention, the both longitudinal margins of which are transversally chamfered (see Fig. 2), which substantially provides two longitudinal scraping edges, a first scrap¬ ing edge 5 at the upper longitudinal margin of the scraper blade, and a second scraping edge 6, opposite the first scraping edge 5, at the lower longitudinal mar¬ gin of the scraper blade. The first and second scraping edges 5, 6, of the embodi- ment are divided into several abutting portions 7.1 , 7.2, 7.3, 8.1 , 8.2, which, upon abutting scraping action, extend transversely to the direction of scraping, and ad¬ ditionally are continuous in the plane of each scraping edge 5, 6. Each scraping edge 5, 6 is wave shaped in its scraping edge plane, and each abutting portion 7.1 , 7.2, 7.3, 8.1 , 8.2 is convex in the plane of the scraping edge 5, 6 and forms a part of a crest of the wave shape. The longitudinal extensions of the abutting por¬ tions 7.1 , 7.2, 7.3, 8.1 , 8.2 in the plane of each scraping edge 5, 6 are of different lengths. Each abutting portion 7.1 , 7.2, 7.3, 8.1 , 8.2, upon abutment, makes an angle with the surface, in the plane of the scraping edge 5, 6, which is always less than 90°, but preferably said angle is less than 30°, more preferably less than 15°. The less said critical angle is, less than 5°, e.g., the less convex to the surface the abutting portion 7.1 , 7.2, 7.3, 8.1 , 8.2 is. Fig. 2 shows a cross section of the embodiment of Fig. 1. By the transver¬ sal chamfering of both longitudinal margins of the scraper blade, which provides
said two scraping edges 5, 6 of the scraper blade, a non-right-angled parallelepi- pedic cross section is obtained. Naturally, other embodiments of the scraper blade according to the pre¬ sent invention, in addition to the above-mentioned ones, are possible. An elon- gated scraper blade can for example be provided with two scraping edges at one longitudinal margin, or the scraper blade itself can have another overall design, but still comprise the unique scraping edge according to the present invention. The scraper blade can for example be triangular, provided with a scraping edge along all or any of the margins of the triangle shape. Fig. 3 shows a perspective view of an embodiment of the paint scraper ac¬ cording to the present invention, to which the scraper blade of Figures 1 and 2 is attached, for scraping with one of the scraping edges 6.
Claims
1. A scraper blade for paint scraper intended for removing paint from a sur¬ face, comprising at least one scraping edge (5, 6), the scraping edge (5, 6) being divided into at least two abutting portions (7.1 , 7.2, 7.3, 8.1 , 8.2) extending along the scraping edge, which, upon abutting scraping action, extend transversely to the direction of scraping, characterized in that each abutting portion (7.1 , 7.2, 7.3, 8.1 , 8.2) is convex in the plane of the scraping edge (5, 6), whereby an effec¬ tive scraping effect is obtained.
2. A scraper blade according to claim 1 , characterized in that each abut¬ ting portion (7.1 , 7.2, 7.3, 8.1 , 8.2) is continuous in the plane of the scraping edge (5, 6), in that each abutting portion extends continuously along a continuous curve.
3. A scraper blade according to claim 1 or 2, characterized in that the scraping edge (5, 6) is wave shaped in the plane of the scraping edge (5, 6), and that each abutting portion (7.1 , 7.2, 7.3, 8.1 , 8.2) forms a part of a crest of the wave shape.
4. A scraper blade according to any of the claims 1 to 3, characterized in that the longitudinal extensions of the abutting portions (7.1 , 7.2, 7.3, 8.1 , 8.2) are of different lengths.
5. A scraper blade according to any of the claims 1 to 4, characterized in that each abutting portion (7.1 , 7.2, 7.3, 8.1 , 8.2), upon abutment, makes an angle with the surface, in the plane of the scraping edge (5, 6), which is always less than 90°, preferably less than 30°.
6. A scraper blade according to claim 5, characterized in that each abut- ting portion (7.1 , 7.2, 7.3, 8.1 , 8.2), upon abutment, makes an angle with the sur¬ face, in the plane of the scraping edge (5, 6), which is less than 15°.
7. A paint scraper for removing paint from a surface, characterized in that said paint scraper comprises a scraper blade according to any of the claims 1 to 6.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/630,962 US20070209136A1 (en) | 2004-06-28 | 2005-06-27 | Scraping Blade For Paint Scraper Intended For Removing Paint |
| EP05754930A EP1786633A1 (en) | 2004-06-28 | 2005-06-27 | A scraping blade for paint scraper intended for removing paint |
| CN2005800217883A CN1976817B (en) | 2004-06-28 | 2005-06-27 | A scraping blade for paint scraper intended for removing paint |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0401689A SE527249C2 (en) | 2004-06-28 | 2004-06-28 | Scratch blades for paint scraper intended for scraping paint |
| SE0401689-5 | 2004-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006001772A1 true WO2006001772A1 (en) | 2006-01-05 |
Family
ID=32733717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2005/001012 WO2006001772A1 (en) | 2004-06-28 | 2005-06-27 | A scraping blade for paint scraper intended for removing paint |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070209136A1 (en) |
| EP (1) | EP1786633A1 (en) |
| CN (1) | CN1976817B (en) |
| SE (1) | SE527249C2 (en) |
| WO (1) | WO2006001772A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308271A (en) * | 2014-09-10 | 2015-01-28 | 赵德金 | Deburring device for pipe |
| USD817560S1 (en) * | 2016-01-09 | 2018-05-08 | Jennifer Tipton | Animal grooming tool with wave pattern blade teeth |
| USD835858S1 (en) * | 2016-01-09 | 2018-12-11 | Jennifer Tipton | Animal grooming tool with wave pattern blade teeth |
| USD837464S1 (en) * | 2017-07-10 | 2019-01-01 | Everymarket Inc. | Pet grooming tool |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1388931A (en) * | 1920-03-13 | 1921-08-30 | Thomas B Oneill | Combined scraper and chopper |
| US1527561A (en) * | 1923-04-24 | 1925-02-24 | Klum Blaine | Scraper |
| US2843932A (en) * | 1956-11-06 | 1958-07-22 | Joseph B Ferguson | Tool for removing painted-over wallpaper |
| US3530524A (en) * | 1967-03-06 | 1970-09-29 | Earl J Clemans | Paint scraper hand tool |
| DE8810021U1 (en) * | 1988-08-05 | 1988-12-22 | Keim, Hans Jürgen | Device for cleaning a corrugated asbestos roof |
| US5839152A (en) * | 1996-12-02 | 1998-11-24 | Gene H. Howard | Apparatus for cleaning trowel blades |
| US6098292A (en) * | 1998-03-10 | 2000-08-08 | Harpell; William | Demolition tool |
| US6134743A (en) * | 1998-08-19 | 2000-10-24 | Pacific Handy Cutter, Inc. | Scraping tool system |
| US6732395B2 (en) * | 2001-12-13 | 2004-05-11 | Donald Gringer | Contour pull scraper with stowable file |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1241779A (en) * | 1916-09-26 | 1917-10-02 | Cornelius Suydam | Snow and ice remover. |
| US1791710A (en) * | 1927-12-28 | 1931-02-10 | Orin M Bullock | Tool |
| US2747911A (en) * | 1954-09-30 | 1956-05-29 | Paul H Kuever | Food handling and scraping tool for use with grills |
| US2824323A (en) * | 1956-01-13 | 1958-02-25 | Tos Oreste | Grill scraper and cleaner |
| US2957192A (en) * | 1958-06-02 | 1960-10-25 | Ila E Faughnder | Pot and pan scraper |
| US3789450A (en) * | 1972-02-29 | 1974-02-05 | Raymond Lee Organization Inc | Painter{40 s pal |
| US4200948A (en) * | 1979-03-28 | 1980-05-06 | Nesseth Arthur E | Paint scraper |
| US4704795A (en) * | 1985-02-22 | 1987-11-10 | Primich John V | Adjustable scraper |
| US4759092A (en) * | 1987-08-05 | 1988-07-26 | Duddy James J | Industrial-type scraper |
| US5546625A (en) * | 1995-07-13 | 1996-08-20 | Mealey, Sr.; Eddie H. | Multipurpose painter's tool |
| CN2354700Y (en) * | 1998-09-22 | 1999-12-22 | 连壁东 | Scraper |
| SE0002549L (en) * | 2000-07-04 | 2001-07-09 | Kapman Ab | Color scratch with nail countersink |
| CN2564267Y (en) * | 2002-02-20 | 2003-08-06 | 钱功青 | Paint scraper |
| NZ517835A (en) * | 2002-03-15 | 2003-03-28 | Murray Gordon Watkins | A scraper with undulating edges complementary to corrugated roofing sheets |
-
2004
- 2004-06-28 SE SE0401689A patent/SE527249C2/en not_active IP Right Cessation
-
2005
- 2005-06-27 US US11/630,962 patent/US20070209136A1/en not_active Abandoned
- 2005-06-27 WO PCT/SE2005/001012 patent/WO2006001772A1/en active Application Filing
- 2005-06-27 EP EP05754930A patent/EP1786633A1/en not_active Withdrawn
- 2005-06-27 CN CN2005800217883A patent/CN1976817B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1388931A (en) * | 1920-03-13 | 1921-08-30 | Thomas B Oneill | Combined scraper and chopper |
| US1527561A (en) * | 1923-04-24 | 1925-02-24 | Klum Blaine | Scraper |
| US2843932A (en) * | 1956-11-06 | 1958-07-22 | Joseph B Ferguson | Tool for removing painted-over wallpaper |
| US3530524A (en) * | 1967-03-06 | 1970-09-29 | Earl J Clemans | Paint scraper hand tool |
| DE8810021U1 (en) * | 1988-08-05 | 1988-12-22 | Keim, Hans Jürgen | Device for cleaning a corrugated asbestos roof |
| US5839152A (en) * | 1996-12-02 | 1998-11-24 | Gene H. Howard | Apparatus for cleaning trowel blades |
| US6098292A (en) * | 1998-03-10 | 2000-08-08 | Harpell; William | Demolition tool |
| US6134743A (en) * | 1998-08-19 | 2000-10-24 | Pacific Handy Cutter, Inc. | Scraping tool system |
| US6732395B2 (en) * | 2001-12-13 | 2004-05-11 | Donald Gringer | Contour pull scraper with stowable file |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0401689L (en) | 2005-12-29 |
| SE527249C2 (en) | 2006-01-31 |
| CN1976817B (en) | 2010-06-16 |
| CN1976817A (en) | 2007-06-06 |
| EP1786633A1 (en) | 2007-05-23 |
| SE0401689D0 (en) | 2004-06-28 |
| US20070209136A1 (en) | 2007-09-13 |
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