WO2009097422A1 - Wall scraper - Google Patents
Wall scraper Download PDFInfo
- Publication number
- WO2009097422A1 WO2009097422A1 PCT/US2009/032426 US2009032426W WO2009097422A1 WO 2009097422 A1 WO2009097422 A1 WO 2009097422A1 US 2009032426 W US2009032426 W US 2009032426W WO 2009097422 A1 WO2009097422 A1 WO 2009097422A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- scraper
- handle
- end cap
- rear grip
- head
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/02—Scraping
- A47L13/08—Scraping with scraping blades
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/02—Scraping
- A47L13/022—Scraper handles
-
- 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 disclosure relates to a scraper.
- the present disclosure has particular applicability to wall scrapers with replaceable blades.
- Wall scrapers also called wall strippers, are used to remove paint, wallpaper, etc. from walls. They are typically used with two hands. All such scrapers provide a grip at the rear of the handle, and some have a knob on the front of the housing to provide an additional grip.
- a typical conventional design as shown in Fig. 1 , uses a standard replaceable blade, such as a 4" stripper blade held in place to a head by screws and a flat plate that mates with the head. The position of the head is fixed at an angle to the handle, to accommodate right- handed people.
- the fixed angle is often not quite right for the user (e.g., if the user is left-handed) or for a particular work situation, which may require a greater or lesser angle for scraping effectiveness and/or efficiency.
- An advantage of the present disclosure is a scraper with an adjustable scraper head whose angle with respect to its handle can be changed according to the user and/or to the job at hand.
- a scraper comprising an elongated handle; a scraper head for fixedly holding a blade, the scraper head being pivotably mounted to a first end of the handle for positioning the scraper head at a selected angle to the handle; and a lock engageable with the handle and the scraper head for fixing the scraper head at the selected angle.
- Figure 1 is a top view of a prior art scraper
- Figure 2 is a perspective view of a scraper according to an embodiment of the present disclosure
- Figure 3 is a side view of the scraper of Fig. 2;
- Figure 4 is a perspective view of an end cap of the scraper of Fig. 2;
- Figure 5 is a rear view of the scraper of Fig. 2;
- Figure 6 is a bottom view of the scraper of Fig. 2;
- Figure 7 is a partial perspective view of the scraper of Fig. 2.
- Figures 8a-c are views of the rear grip and end cap according to a further embodiment of the present disclosure.
- a scraper according to the present disclosure addresses the disadvantages of conventional wall scrapers having a head at a fixed angle to the handle.
- the present disclosure provides a scraper with an adjustable scraper head whose angle with respect to the handle can be changed to suit the user and/or the job.
- the scraper of the present disclosure also has textured grips for both the user's hands for better control, and storage space for extra blades inside its handle.
- a wall scraper 10 has a tubular metal handle 11 with an overmolded rear grip 11a and an end cap 26.
- handle 11 has an oval cross-section.
- a scraper head assembly 15 holds a blade 17, such as a standard 4" scraper blade, between metal head halves 16, 18.
- a knob 12 is provided on the scraper head assembly 15 having an overmolded grip 12a for better control and pressure.
- the head assembly 15 has a metal attachment member 19 which is securely fitted into the front end of handle 11.
- Attachment member 19 includes a splined circular detent ring 19a which mates with a corresponding splined circular detent ring 16a of upper head half 16.
- Knob 12 has a threaded shaft 12b which passes through aligned holes in upper head half 16 and attachment member 19, and threads into a fastener, such as captivated nut 20, at the bottom of attachment member 19.
- handle 11 is pivotably mounted to scraper head 15 via knob 12.
- the knob 12 acts as a lock to tighten and securely fix the upper head half 16 to the attachment member 19, after their corresponding detent rings are engaged as desired by the user for selecting the blade attack angle (i.e., the angle of blade 17 relative to handle 1 1).
- the blade 17 is captured in a conventional manner between upper head half 16 and lower head half 18, such as via screws that pass through holes 16b in upper head half 16 and corresponding through-holes in blade 17, and thread into holes 18a in lower head half 18.
- the rear grip 11a has two opposed side buttons 22 which extend through corresponding holes 1 Ib to hold the end cap 26 in place (see Figs. 2, 3, 5, and 7).
- end cap 26 is integral with buttons 22, and made of a plastic that allows buttons 22 to act as resilient spring tabs which flex when end cap 26 is inserted into grip 1 Ia, to engage holes 1 Ib, and allow removal of the end cap 26 from the rear grip 11a when the user depresses the buttons 22.
- End cap 26 holds spare blades (not shown) inside the hollow handle 11.
- end cap 26 is a screw-on arrangement or friction fit.
- rear grip 11a has a recessed portion l ie for the user's thumb when the user is gripping the rear grip 11a.
- a hinged end cap 30 is provided, along with a latch to secure the cap 30 in a closed position.
- Cap 30 includes a hinge half 30a which engages a mating hinge half Hd of rear grip 1 1a.
- Cap 30 also includes a resilient push point 30b and a finger with a detent 30c attached thereto which mates with a through hole 1 Ie in rear grip 1 Ia to retain the cap 30 in a closed position.
- the user pushes down on push point 30b in the top of cap 30, moving finger and detent 30c down, thereby releasing detent 30c from through hole l ie.
- Cap 30 also has an internal positioning section 3Od to hold the spare blades (not shown) in position when the end cap 30 is closed.
- the scraper of the present disclosure allows the blade 17 to be adjusted to any comfortable angle by unscrewing the knob 12, moving the head 15, and tightening the knob 12.
- the disclosed adjustable blade angle enables comfortable use of the scraper by right and left handed users.
- the grip 12a of knob 12 enables increased pressure to be applied to the scraper during use, because it allows the user to use both hands. Still further, enabling the use of both hands by the user allows greater control of the tool during scraping.
- the present disclosure can be practiced by employing conventional materials, methodology and equipment. Accordingly, the details of such materials, equipment and methodology are not set forth herein in detail.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09706096A EP2250034A4 (en) | 2008-01-30 | 2009-01-29 | Wall scraper |
CA2713730A CA2713730A1 (en) | 2008-01-30 | 2009-01-29 | Wall scraper |
CN2009801038802A CN101970249A (en) | 2008-01-30 | 2009-01-29 | Wall scraper |
MX2010008443A MX2010008443A (en) | 2008-01-30 | 2009-01-29 | Wall scraper. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US675408P | 2008-01-30 | 2008-01-30 | |
US61/006,754 | 2008-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009097422A1 true WO2009097422A1 (en) | 2009-08-06 |
Family
ID=40897746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/032426 WO2009097422A1 (en) | 2008-01-30 | 2009-01-29 | Wall scraper |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090188066A1 (en) |
EP (1) | EP2250034A4 (en) |
CN (1) | CN101970249A (en) |
CA (1) | CA2713730A1 (en) |
MX (1) | MX2010008443A (en) |
WO (1) | WO2009097422A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8356415B2 (en) * | 2009-12-18 | 2013-01-22 | Wen-Chen Lin | Scraping tool with blade lock assembly |
CN103556807A (en) * | 2013-08-16 | 2014-02-05 | 深圳市华南装饰设计工程有限公司 | Seam shoveling device |
US10383500B2 (en) * | 2014-09-07 | 2019-08-20 | Mario E. Magnani | Dual-bladed scraper with a rotatable blade-retaining head |
US10456945B2 (en) * | 2014-12-29 | 2019-10-29 | Robert Bosch Tool Corporation | Tool for manually operating oscillating motorized tool accessory |
CN105839899A (en) * | 2016-05-18 | 2016-08-10 | 长葛市唯美装饰行 | Adjustable scraper knifefor decoration |
US11124019B1 (en) * | 2021-05-28 | 2021-09-21 | Donald Curtis | Electrically powered stripping tool |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001054867A1 (en) * | 2000-01-29 | 2001-08-02 | Fast Industriprodukter Hb | Connection for broom handle or the like |
US6272708B1 (en) * | 2000-03-14 | 2001-08-14 | Martin Chen | Scraper kit for masons |
US6598301B2 (en) * | 2000-06-02 | 2003-07-29 | American Safety Razor Company | Multi-purpose razor blade tool |
US6625837B2 (en) * | 2000-12-27 | 2003-09-30 | Zhen-Yuan Jiang | Cleaning brush structure |
WO2006040417A1 (en) * | 2004-10-08 | 2006-04-20 | Roger Fuchs | Scraper |
CA2594292A1 (en) * | 2006-07-26 | 2008-01-26 | Ngok Wing Kwok | Kitchen knife with removable handle weights |
Family Cites Families (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US538010A (en) * | 1895-04-23 | Holder for scrapers | ||
US713979A (en) * | 1902-04-09 | 1902-11-18 | Noe Galipeau | Wood-scraper. |
US740087A (en) * | 1902-09-18 | 1903-09-29 | John W Carleton | Scraper. |
US725480A (en) * | 1902-12-08 | 1903-04-14 | John B Price | Floor and hardwood scraper. |
US842275A (en) * | 1906-03-08 | 1907-01-29 | Stanley Rule & Level Co | Scraper. |
US966962A (en) * | 1910-03-05 | 1910-08-09 | Starrett L S Co | Floor-scraper. |
US1170319A (en) * | 1912-04-08 | 1916-02-01 | E C Stearns & Company | Floor-scraper. |
US1434914A (en) * | 1922-02-24 | 1922-11-07 | Rhodes Robert Worley | Scraper |
US1500643A (en) * | 1922-11-24 | 1924-07-08 | Oscar L Scalbom | Cutter holder |
US1565186A (en) * | 1924-08-22 | 1925-12-08 | Moon Don Pardee | Razor-blade holder |
US1617563A (en) * | 1925-11-30 | 1927-02-15 | Baum Henry | Compound tool |
US2226794A (en) * | 1936-08-24 | 1940-12-31 | Frank B Williams | Scraping and cutting tool |
US2215216A (en) * | 1936-12-14 | 1940-09-17 | Joseph A Gits | Cutting implement |
US2133087A (en) * | 1937-03-09 | 1938-10-11 | Eric W Ericsson | Scraper |
US2202264A (en) * | 1938-09-26 | 1940-05-28 | Gustav T Peterson | Scraper |
US2257314A (en) * | 1939-04-29 | 1941-09-30 | Jr Charles P Shinn | Scraper |
US2306083A (en) * | 1940-05-01 | 1942-12-22 | Edmund Marcotte | Scraper |
US2333184A (en) * | 1940-08-03 | 1943-11-02 | Kalin Albert | Governor |
US2404141A (en) * | 1943-12-11 | 1946-07-16 | Nelson Jennings | Razor blade holder |
US2791027A (en) * | 1953-05-20 | 1957-05-07 | James R Davidson | Scraping and cutting tool |
US3324548A (en) * | 1965-04-27 | 1967-06-13 | Mascia Peter | Tool-holding knife |
US3593417A (en) * | 1969-08-13 | 1971-07-20 | Stanley Works | Hand tool having a holder for spare blades and the like |
US3924329A (en) * | 1973-06-25 | 1975-12-09 | Stanley Tools Ltd | Hand tool comprising a handle and removable blade |
US4124915A (en) * | 1977-08-15 | 1978-11-14 | S/V Tool Company, Inc. | Combination scraper and squeegee |
USD271628S (en) * | 1981-10-26 | 1983-11-29 | Conchemco, Incorporated | Windshield cleaner |
US4481689A (en) * | 1982-07-19 | 1984-11-13 | Burton Westmoreland | Scraping tool |
US4468831A (en) * | 1983-06-27 | 1984-09-04 | The Weller Company | Ice scraper |
US4617736A (en) * | 1984-08-02 | 1986-10-21 | Mccrary Mark W | Swivel headed scraping device |
US4575936A (en) * | 1985-02-06 | 1986-03-18 | Donald Gringer | Blade retaining tool head |
US4712269A (en) * | 1986-06-09 | 1987-12-15 | Worthen Billie C | Vehicle ice scraper having deformable blade |
USD307963S (en) * | 1987-11-10 | 1990-05-15 | Mr. Longarm, Inc. | Squeegee handle |
USD320921S (en) * | 1989-01-05 | 1991-10-22 | Warner Manufacturing Company | Wallstripper tool |
US5056226A (en) * | 1991-02-01 | 1991-10-15 | Allway Tools, Inc. | Tool for carrying a scraping or stripping blade |
USD343265S (en) * | 1991-03-28 | 1994-01-11 | Detailed Designs, Inc. | Squeegee |
USD360505S (en) * | 1993-08-18 | 1995-07-18 | Goodman Sheldon H | Squeegee |
US6334254B1 (en) * | 1998-07-31 | 2002-01-01 | American Safety Razor | Wide blade scraper |
USD441156S1 (en) * | 1999-05-31 | 2001-04-24 | Aharon Zegman Ltd. | Scraper |
US6286215B1 (en) * | 1999-06-14 | 2001-09-11 | Hyde Manufacturing Company | Retractable blade scraper |
US6519801B1 (en) * | 2000-11-10 | 2003-02-18 | Chien-Chuan Chao | Paint scraper |
US6453563B1 (en) * | 2001-01-05 | 2002-09-24 | Hyde Manufacturing Company, Inc. | Hand tool handle |
US6742215B2 (en) * | 2001-02-06 | 2004-06-01 | A. Richard S.E.N.C. | Ergonomic drywall knife |
US6715210B2 (en) * | 2002-06-26 | 2004-04-06 | Chien-Chuan Chao | Scraper |
DE20214102U1 (en) * | 2002-09-12 | 2004-02-12 | Kluth, Karlheinz | Hand scraper tool for removal of frost, snow or ice from a vehicle windscreen has blade tip directed towards user |
USD502580S1 (en) * | 2003-06-14 | 2005-03-01 | Robert D. Williams | Surface squeegee |
USD515262S1 (en) * | 2004-07-13 | 2006-02-14 | Hayco Manufacturing Limited | Cleaning implement |
USD541617S1 (en) * | 2005-07-22 | 2007-05-01 | United States Gypsum Company | Handle for taping knife with enlarged hammer end |
US20070074401A1 (en) * | 2005-07-22 | 2007-04-05 | Myers Matthew E | Taping knife handle with identification insert |
US20070294850A1 (en) * | 2006-06-22 | 2007-12-27 | Warren L. Murphy | Spatula tool system |
-
2009
- 2009-01-27 US US12/360,458 patent/US20090188066A1/en not_active Abandoned
- 2009-01-29 CA CA2713730A patent/CA2713730A1/en not_active Abandoned
- 2009-01-29 CN CN2009801038802A patent/CN101970249A/en active Pending
- 2009-01-29 MX MX2010008443A patent/MX2010008443A/en not_active Application Discontinuation
- 2009-01-29 EP EP09706096A patent/EP2250034A4/en not_active Withdrawn
- 2009-01-29 WO PCT/US2009/032426 patent/WO2009097422A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001054867A1 (en) * | 2000-01-29 | 2001-08-02 | Fast Industriprodukter Hb | Connection for broom handle or the like |
US6272708B1 (en) * | 2000-03-14 | 2001-08-14 | Martin Chen | Scraper kit for masons |
US6598301B2 (en) * | 2000-06-02 | 2003-07-29 | American Safety Razor Company | Multi-purpose razor blade tool |
US6625837B2 (en) * | 2000-12-27 | 2003-09-30 | Zhen-Yuan Jiang | Cleaning brush structure |
WO2006040417A1 (en) * | 2004-10-08 | 2006-04-20 | Roger Fuchs | Scraper |
CA2594292A1 (en) * | 2006-07-26 | 2008-01-26 | Ngok Wing Kwok | Kitchen knife with removable handle weights |
Also Published As
Publication number | Publication date |
---|---|
US20090188066A1 (en) | 2009-07-30 |
MX2010008443A (en) | 2011-03-02 |
EP2250034A4 (en) | 2011-03-02 |
EP2250034A1 (en) | 2010-11-17 |
CN101970249A (en) | 2011-02-09 |
CA2713730A1 (en) | 2009-08-06 |
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