Scraper kit for masons

Information

  • Patent Grant
  • 6272708
  • Patent Number
    6,272,708
  • Date Filed
    Tuesday, March 14, 2000
    24 years ago
  • Date Issued
    Tuesday, August 14, 2001
    23 years ago
  • Inventors
  • Examiners
    • Smith; James G.
    • Shakeri; Hadi
    Agents
    • Rosenberg, Klein & Lee
Abstract
A mason's scraper kit that has an extension rod and a scraper that can be easily engaged with or disengaged from an end of the extension rod. The scraper includes a handle with a receptacle. The receptacle includes a first threaded section in an inner end thereof and a second threaded section in an outer end thereof. The end of the extension rod includes a first outer threading for engaging with the first threaded section of the receptacle of the scraper handle. The end of the extension rod further includes a second outer threading for engaging with the second threaded section of the receptacle of the scraper handle. An end block is removably mounted in a handle thereof for carrying at least one tool bit. The end block includes a tool-engaging hole for releasably engaging with a tool bit, thereby providing an additional function.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a scraper kit for masons, and more particularly to a scraper kit for masons including an extension rod and a scraper that can be attached to an end of the extension rod for removing redundant cement on high. The present invention also relates to a scraper that may carry an end block in a handle thereof and a plurality of tool bits are carried by the end block.




2. Description of the Related Art





FIG. 9

of the drawings illustrates a conventional handle of a mason's scraper. The scraper handle


50


is threadedly engaged with a threaded end


52


of an extension rod


51


for removing cement on high. Nevertheless, the length L1 of the threaded end


52


is too short such that the threaded end


52


tends to break or disengage from the handle


50


during use, as the extension rod


51


has a considerable length. A solution to this problem is shown in

FIG. 10

, wherein the threaded end


52


and corresponding threaded section of the scraper handle


50


are lengthened (see “L2”), yet the threading engagement/disengagement becomes time-consuming and inconvenient.




SUMMARY OF THE INVENTION




It is a primary object of the present invention to provide a mason's scraper kit that has an extension rod and a scraper that can be easily engaged with or disengaged from an end of the extension rod. The scraper includes a handle with a receptacle. The receptacle includes a first threaded section in an inner end thereof and a second threaded section in an outer end thereof. The end of the extension rod includes a first outer threading for engaging with the first threaded section of the receptacle of the scraper handle. The end of the extension rod further includes a second outer threading for engaging with the second threaded section of the receptacle of the scraper handle. Thus, engagement/disengagement of the scraper handle with/from the end of the extension rod can be easily achieved.




It is another object of the present invention to provide a mason's scraper that has an end block removably mounted in a handle thereof and a plurality of tool bits are carried by the end block. The end block includes a tool-engaging hole for releasably engaging with a tool bit, thereby providing an additional function.




It is a further of the present invention to provide a mason's scraper that has an anti-slip section on a handle thereof to prevent skip of user's finger during use.




Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an exploded perspective view of a mason's scraper in accordance with the present invention.





FIG. 2

is a perspective view of the mason's scraper in accordance with the present invention.





FIG. 3

is a perspective view illustrating use of the mason's scraper in accordance with the present invention.





FIG. 4

is a perspective view illustrating another use of the mason's scraper in accordance with the present invention.





FIG. 5

is a perspective view illustrating use of an end block of the mason's scraper in accordance with the present invention.





FIG. 6

is an exploded perspective view illustrating a scraper kit in accordance with the present invention.





FIG. 7

is a perspective view of the mason's scraper kit in accordance with the present invention.





FIG. 8

is a sectional view, in an enlarged scale, illustrating engagement between the mason's scraper and the extension rod of the scraper kit in accordance with the present invention.





FIG. 9

is a sectional view illustrating engagement between a conventional mason's scraper and an extension rod.





FIG. 10

is a sectional view illustrating another engagement between a conventional mason's scraper and an extension rod.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to

FIGS. 1 and 2

, a mason's scraper


100


in accordance with the present invention generally includes a handle


20


and a blade


10


attached to an end of the handle


20


. A recessed anti-skip portion


21


is provided on the handle


20


at a position adjacent to the blade


10


such that the user's finger (e.g., the thumb


201


,

FIG. 3

) may apply a force to the recessed anti-skip portion


21


when in use. The handle


20


includes a receptacle


23


that has a first threaded section


24


in an inner end thereof and a second threaded section


25


in an outer end thereof.




An end block


30


is removably mounted in the receptacle


23


of the handle


20


. The end block


30


includes a tool seat


31


and a hammer section


32


formed on an end of the tool seat


31


. The tool seat


31


includes a tool-engaging hole


33


on an end face of the other end thereof for releasably receiving a tool bit


35


. The tool-engaging hole


33


is preferably defined in a center of the tool seat


31


. The end face of the other end of the tool seat


31


further includes a plurality of grooves


34


for receiving different bits


35


. Preferably, the grooves


34


surround the central tool-engaging hole


33


. Thus, the end block


30


can be used as a screwdriver or the like, best shown in FIG.


5


. The tool seat


31


includes an outer threading


36


adjacent to the hammer section


32


. Thus, the end block


30


may be received in the receptacle


23


of the handle


20


with the outer threading


36


engaged with the second threaded section


25


of the receptacle


23


.





FIG. 3

illustrates use of the mason's scraper in accordance with the present invention, wherein the thumb


201


of the user's hand


200


is placed on the recessed anti-skip section


21


on the handle


20


to prevent undesired skip during use. Thus, the user may use the blade


10


of the scraper


100


to remove redundant cement


300


.

FIG. 4

illustrates another use of the mason's scraper, wherein the user may use the hammer section


32


to break hardened cement


400


. The hammer section


32


is made of rigid material, e.g., metal.




Turning to

FIG. 6

, when removing cement on high that is not reachable by hand, the scraper in accordance with the present invention may be attached to an end of an extension bar


40


. As illustrated in

FIGS. 6 through 8

, the end of the extension rod


40


includes a first outer threading


41


for engaging with the first threaded section


24


of the receptacle


23


of the scraper handle


20


. The end of the extension rod


40


further includes a second outer threading


43


for engaging with the second threaded section


25


of the receptacle


23


of the scraper handle


20


. In this embodiment, the second outer threading


43


is formed on an outer periphery of a stub


42


projected from a side of an end cap


44


. The end cap


44


has a hole (not labeled) and thus slidable along the extension rod


44


. The end cap


44


covers the receptacle


23


of the handle


20


when the handle


20


is attached to the end of the extension rod


40


. Thus, engagement/disengagement of the scraper handle


20


with/from the end of the extension rod


40


can be easily achieved, as the threaded sections


24


,


25


are shorter than those of conventional design.




According to the above description, it is appreciated that the mason's scraper in accordance with the present invention may remove redundant cement without the risk of skip during use by means of provision of the anti-skip section on the handle. In addition, the hammer section on the end block securely received in the handle may be used to break hardened cement. Furthermore, the end block may be removed and the handle is attached to an end of an extension rod so as to remove cement on high. The threading engagement between the extension rod and the handle is reliable to prevent breakage in the engaging area, yet the engagement/disengagement is easier.




Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.



Claims
  • 1. A scraper comprising:a handle and a blade attached to an end of the handle, the handle including a receptacle, and an end block removably mounted in the receptacle of the handle, the end block being capable of carrying at least one tool bit, the end block being removed from the receptacle of the handle when using as a screwdriver.
  • 2. The scraper kit as claimed in claim 1, wherein the handle includes an anti-skip section adjacent to the blade for preventing skip of use's finger during use.
  • 3. The scraper kit as claimed in claim 1, further comprising an end block that is removably mounted in the receptacle of the handle after disengaging the extension rod from the handle, the end block including an outer threading for releasably engaging with the second threaded section of the receptacle.
  • 4. The scraper kit as claimed in claim 3, wherein the end block includes a hammer section located outside the handle when the end block is received in the receptacle of the handle.
  • 5. The scraper kit as claimed in claim 3, wherein the end block includes a tool seat with an end face, the end face having a tool-engaging hole for releasably receiving a tool bit.
  • 6. The scraper kit as claimed in claim 5, wherein the tool-engaging hole is located in a center of the end face.
  • 7. The scraper kit as claimed in claim 5, wherein the end face of the tool seat includes a plurality of grooves for receiving different bits.
  • 8. The scraper kit as claimed in claim 6, wherein the end face of the tool seat includes a plurality of grooves surrounding the tool-engaging hole for receiving different bits.
  • 9. A scraper kit comprising:a handle and a blade attached to an end of the handle, the handle including a receptacle, the receptacle including a first threaded section in an inner end thereof and a second threaded section in an outer end thereof; and an extension rod including an end having a first outer threading for releasably engaging with the first threaded section of the receptacle, an end cap being slidably mounted to the end of the extension rod, the end cap including a second outer threading for releasably engaging with the second threaded section of the receptacle.
  • 10. The scraper kit as claimed in claim 9, wherein the end cap includes a stub having an outer periphery on which the second outer threading is formed.
  • 11. The scraper kit as claimed in claim 9, further comprising an end block that is removably mounted in the receptacle of the handle after disengaging the extension rod from the handle, the end block including an outer threading for releasably engaging with the second threaded section of the receptacle.
  • 12. The scraper kit as claimed in claim 11, wherein the end block includes a hammer section located outside the handle when the end block is received in the receptacle of the handle.
  • 13. The scraper kit as claimed in claim 11, wherein the end block includes a tool seat with an end face, the end face having a tool-engaging hole for releasably receiving a tool bit.
US Referenced Citations (12)
Number Name Date Kind
5161278 Tomm Nov 1992
5546625 Mealey, Sr. Aug 1996
5566596 Lin Oct 1996
5575030 Girard Nov 1996
5613413 Huang Mar 1997
5720063 Chacon Feb 1998
5868048 Cassutti et al. Feb 1999
5881615 Dahl et al. Mar 1999
5957014 Tseng et al. Sep 1999
6009581 Davis et al. Jan 2000
6131222 Anderson et al. Oct 2000
6131290 Chiou Oct 2000