IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0505466
(2009-07-18)
|
등록번호 |
US-8256122
(2012-09-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
9 |
초록
▼
A two part scraper for scraping glass and other substrates, wherein a scraping part may be located on one side of the substrate and a handle member may be located on the other side. The two parts are magnetically coupled and move in tandem when the handle part is pulled by the user. A cutting blade
A two part scraper for scraping glass and other substrates, wherein a scraping part may be located on one side of the substrate and a handle member may be located on the other side. The two parts are magnetically coupled and move in tandem when the handle part is pulled by the user. A cutting blade may be received within a blade holder which may be mounted to the scraping part by screws and coil springs. The blade holder may be mounted at an angle such as a forty-five degree angle to the surface being scraped. The scraping part may comprise hook and loop material as a scrubbing surface and may have a suction cup located on that surface contacting the substrate. The handle part may have a soft felt lining for contacting the substrate.
대표청구항
▼
1. A two part scraping tool for scraping a free standing substrate by sandwiching the free standing substrate between the two parts of the scraping tool such that one of the two parts slides along and scrapes an exposed surface of the free standing substrate, the two part scraping tool comprising: a
1. A two part scraping tool for scraping a free standing substrate by sandwiching the free standing substrate between the two parts of the scraping tool such that one of the two parts slides along and scrapes an exposed surface of the free standing substrate, the two part scraping tool comprising: a scraping member for sliding along and scraping the exposed surface of the free standing substrate, comprising a scraping body further comprising a scraping blade having a cutting edge disposed substantially along at least one side of said scraping blade,a separate generally rigid blade holder which is disposed to cooperatively receive and retain said scraping blade in fixed relation thereto, and which said generally rigid blade holder is mountable to said scraping body,a removable fastener disposed to couple said generally rigid blade holder to said scraping body; anda first magnetically responsive member mounted to said scraping body; anda handle member comprising a handle body and a second magnetically responsive member mounted to said handle body; whereinwhen said handle member and said scraping member are placed in a deployed position said scraping blade is positioned on one side of the free standing substrate in scraping relation to the free standing substrate, and said handle member is placed on the opposed side of the free standing substrate such that said first magnetically responsive member magnetically attracts and retains said second magnetically responsive member against the free standing substrate with said handle member and said scraping member remaining in mutual opposition and in mutual proximity even when said handle member is pulled along the free standing substrate, whereinat least one of said first magnetically responsive member and said second magnetically responsive member comprises a permanent magnet, whereinsaid scrapping member includes a steel plate, and said handle member includes a steel plate, whereinsaid steel plates of the scrapping member and handle member ensure mutual magnetic attraction between the handle member and the scrapping member. 2. The two part scraping tool according to claim 1, wherein said fastener comprises an enlarged head and a spring disposed between said enlarged head and said generally rigid blade holder,said spring is less than fully compressed when disposed between said enlarged head and said blade holder, and has compressible play which enables said generally rigid blade holder to be resiliently urged against said scraping body. 3. The two part scraping tool according to claim 1, wherein said scraping body comprises a projection, andsaid generally rigid blade holder comprises an opening which is dimensioned and configured to cooperate with said projection, whereby said generally rigid blade holder is located on said scraping body prior to being fastened thereto by said fastener. 4. The two part scraping tool according to claim 1, wherein said generally rigid blade holder comprises a commercially available general purpose blade holder. 5. The two part scraping tool according to claim 1, wherein said generally rigid blade holder comprises at least two holes disposed thereon, and said fastener comprises at least two fasteners, and each one of said fasteners occupies one of said at least two holes. 6. The two part scraping tool according to claim 5, wherein said blade holder comprises a center line which is parallel to the direction of motion of said scraping body when said scraping body is being moved along the free standing substrate,said blade holder comprises a first hole and a second hole said first hole is disposed on one side of said center line, andsaid second hole is disposed on the other side of said center line in mirror image symmetric relation to said first said hole. 7. The two part scraping tool according to claim 1, wherein said scraping body comprises: a cleaning surface which contacts the surface of the free standing substrate when said scraping body is in said deployed position, andan externally exposed mounting surface for receiving said generally rigid blade holder, which said mounting surface is oriented at a non-perpendicular included angle, whereby when said scraping body is in the deployed position and said generally rigid blade holder is mounted on said mounting surface, said scraping blade is oriented along its length at said non-perpendicular angle relative to the free standing substrate. 8. The two part scraping tool according to claim 7, wherein said non-perpendicular included angle is within a range of about twenty degrees to about seventy degrees. 9. The two part scraping tool according to claim 7, wherein said non-perpendicular included angle is about forty-five degrees. 10. The two part scraping tool according to claim 1, wherein said scraping body comprises a cleaning surface which contacts the free standing substrate in said deployed position, and said scraping member further comprises a suction cup which bears against the free standing substrate when said scraping member is in said deployed position. 11. The two part scraping tool according to claim 7, wherein said cleaning surface of said scraping member comprises one of the hook members and the loop members of hook and loop fastening material. 12. The two part scraping tool according to claim 1, wherein said scraping blade comprises a commercially available general purpose cutting blade. 13. The two part scraping tool according to claim 1, wherein said handle member comprises a contact surface which contacts the free standing substrate when said handle member is in said deployed position, and wherein said contact surface of said handle member comprises soft felt material. 14. The two part scraping tool according to claim 1, wherein said handle member has a length of about three to three and one half inches and a width of about two inches, whereby said handle member is easily and effectively grasped in the hand of an adult user. 15. The two part scraping tool according to claim 1, wherein said scraping body comprises a cleaning surface which contacts the free standing substrate in said deployed position, and said cutting edge of said scraping blade contacts the free standing substrate at a location outside the bounds of said cleaning surface of said scraping body. 16. The two part scraping tool according to claim 1, wherein said second magnetically responsive member comprises at least one magnet, and said handle member comprises a magnetically responsive plate bearing an opening for receiving a said magnet. 17. A two part scraping tool for scraping a free standing substrate by sandwiching the free standing substrate between the two parts of the scraping tool such that one of the two parts slides along and scrapes an exposed surface of the free standing substrate, the two part scraping tool comprising: a scraping member for sliding along and scraping the exposed surface of the free standing substrate, comprising a scraping body further comprising a scraping blade having a cutting edge disposed substantially along at least one side of said scraping blade, which said scraping blade is mountable on said scraping body,a fastener disposed to retain said scraping blade to said scraping member at a non-perpendicular included angle between the surface of the free standing substrate being scraped by said scraping tool and the length of said scraping blade, wherein said fastener is disposed to secure said blade to said scraping body, anda first magnetically responsive member mounted to said scraping body;a handle member comprising a handle body and a second magnetically responsive member mounted to said handle body; whereinwhen said handle member and said scraping member are be placed in a deployed position wherein said scraping blade is positioned on one side of the free standing substrate in scraping relation to the free standing substrate, and said handle member is placed on the opposed side of the free standing substrate such that said first magnetically responsive member magnetically attracts and retains said second magnetically responsive member against the free standing substrate with said handle member and said scraping member remaining in mutual opposition and in mutual proximity even when said handle member is pulled along the free standing substrate, andat least one of said first magnetically responsive member and said second magnetically responsive member comprises a permanent magnet, whereinsaid scraping body comprises a suction cup which bears against the free standing substrate when said scraping member is in said deployed position, whereinsaid scrapping member includes a steel plate, and said handle member includes a steel plate, whereinsaid steel plates of the scrapping member and handle member ensure mutual magnetic attraction between the handle member and the scrapping member. 18. The two part scraping tool according to claim 17, wherein said handle member comprises a contact surface which contacts the free standing substrate when said handle member is in said deployed position, and wherein said contact surface of said handle member comprises soft felt material. 19. A two part scraping tool for scraping a free standing substrate by sandwiching the free standing substrate between the two parts of the scraping tool such that one of the two parts slides along and scrapes an exposed surface of the free standing substrate, the two part scraping tool comprising: a scraping member for sliding along and scraping the exposed surface of the free standing substrate, comprising a scraping body further comprising a cleaning surface which contacts the free standing substrate in said deployed position,a scraping blade having a cutting edge disposed substantially along at least one side of said scraping blade, which said scraping blade is mountable on said scraping body,a fastener disposed to retain said scraping blade to said scraping member at a non-perpendicular included angle between the surface of the free standing substrate being scraped by said scraping tool and the length of said scraping blade, wherein said fastener is disposed to secure said blade to said scraping body, anda first magnetically responsive member mounted to said scraping body;a handle member comprising a handle body and a second magnetically responsive member mounted to said handle body; whereinwhen said handle member and said scraping member are placed in a deployed position wherein said scraping blade is positioned on one side of the free standing substrate in scraping relation to the free standing substrate, and said handle member is placed on the opposed side of the free standing substrate such that said first magnetically responsive member magnetically attracts and retains said second magnetically responsive member against the free standing substrate with said handle member and said scraping member remaining in mutual opposition and in mutual proximity even when said handle member is pulled along the free standing substrate, andat least one of said first magnetically responsive member and said second magnetically responsive member comprises a permanent magnet, whereinsaid cleaning surface of said scraping member comprises one of the hook members and the loop members of hook and loop fastening material, whereby said two part scraping tool cleans both by scraping and by scrubbing, whereinsaid scrapping member includes a steel plate, and said handle member includes a steel plate, whereinsaid steel plates of the scrapping member and handle member ensure mutual magnetic attraction between the handle member and the scrapping member. 20. The two part scraping tool according to claim 19, wherein said handle member comprises a contact surface which contacts the free standing substrate when said handle member is in said deployed position, and wherein said contact surface of said handle member comprises soft felt material.
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