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Publication numberUSRE38093 E1
Publication typeGrant
Application numberUS 09/825,773
Publication dateApr 29, 2003
Filing dateApr 4, 2001
Priority dateMar 30, 1999
Fee statusPaid
Publication number09825773, 825773, US RE38093 E1, US RE38093E1, US-E1-RE38093, USRE38093 E1, USRE38093E1
InventorsLian-Jen Chiou
Original AssigneeDing Wei Enterprises, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mason's hand tool
US RE38093 E1
Abstract
A mason's hand tool includes a blade, a handle, and a head cap. The blade is fastened with one end of the handle. The handle has a head end opposite to the one end of the handle. The head cap is fastened with the hand end. The handle and the head cap are made integrally of a plastic material by injection molding. The head cap has a plurality of protruding which are anchored in the head end of the handle.
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Claims(11)
What is claimed is:
1. A hand tool comprising a blade, a handle, and a head cap, said blade being fastened with a first end of said handle, said handle having a head end opposite to said first end, said head cap being fastened with said head end; wherein said handle and said head cap are made integrally of a plastic material by injection molding; and wherein said head cap has a plurality of protrusions each having a retaining head, said protrusions being anchored in said head end of said handle.
2. A hand tool comprising a blade, a handle, and a head cap, said blade being fastened with a first end of said handle, said handle having a head end opposite to said first end, said head cap being fastened with said head end; wherein said head cap is provided with a plurality of threaded holes and bolts which are engaged with said threaded holes; wherein said head cap and said handle are made integrally of a plastic material by injection molding; and wherein said bolts are anchored in said head end of said handle.
3. The hand tool as defined in claim 1, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
4. The hand tool as defined in claim 2, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
5. A hand tool comprising, in combination: a handle having a first end and a second end; a blade attached to the first end of the handle; and a head cap fastened with the second end of the handle, the handle being made of a plastic material, the handle and the head cap being made integral by injection molding, and the head cap having at least one protrusion anchored in the second end of the handle, wherein said at least one protrusion includes a retaining head.
6. The hand tool as defined in claim 5, wherein the handle and the head cap are made integrally of a plastic material by injection molding.
7. The hand tool as defined in claim 5, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
8. A hand tool comprising, in combination: a handle having a first end and a second end; a blade attached to the first end of the handle; and a head cap fastened with the second end of the handle, the handle being made of a plastic material, the handle and the head cap being made integral by injection molding, and the head cap having at least one protrusion anchored in the second end of the handle, wherein said at least one protrusion comprises at least one bolt securely attached to the head cap, and said at least one bolt being anchored in the second end of the handle.
9. The hand tool as defined in claim 8, wherein the head cap includes at least one threaded hole for engaging with said at least one bolt.
10. The hand tool as defined in claim 8, wherein the handle and the head cap are made integrally of a plastic material by injection molding.
11. The hand tool as defined in claim 8, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
Description
FIELD OF THE INVENTION

The present invention relates generally to a hand tool, and more particularly to a mason's hand tool.

BACKGROUND OF THE INVENTION

As shown in FIGS. 1 and 2, a mason's hand tool of the prior art comprises a blade 10′ , a handle 20′ , and a head cap 25 30′ . The handle 20′ is made of a plastic material and is devoid of a skidproof surface enabling the hand of a person to get a firm grip on the handle 20′ . The head cap 25 30′ is fastened with the head end of the handle 20′ by rivet or adhesive and is therefore vulnerable to being detached from the head end of the handle 20′ especially at the time when the head cap 25 30′ is used by a mason to hit a nail or screw that is not completely fastened onto something.

SUMMARY OF THE INVENTION

The primary objective of the present invention is therefore to provide an improved hand tool which is free from the drawbacks of the prior art hand tool described above.

In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by a hand tool comprising a blade, a handle, and a head cap. The handle is provided with a skidproof surface to enable the hand of a person to get a firm grip on the handle. The handle and the head cap are made integrally of a rigid plastic material by injection molding.

The foregoing objective, features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a perspective view of a hand tool of the prior art.

FIG. 2 shows an exploded view of the hand tool of the prior art.

FIG. 3 shows a perspective view of a hand tool of the preferred embodiment of the present invention.

FIG. 4 shows a perspective view of an embodiment of a head cap of the hand tool of the present invention.

FIG. 5 shows a perspective view of another embodiment of a head cap of the hand tool of the present invention.

FIG. 6 shows a side view, partly sectioned, of the hand grip of the present invention having the head cap in FIG. 4.

FIG. 7 shows a side view, partly sectioned, of another partial grip of the present invention having the head cap in FIG. 5 4 .

DETAILED DESCRIPTION OF THE EMBODIMENT

As shown in FIG. 3, a hand tool embodied in the present invention is composed of a blade 10, a handle 20, and a head cap 30.

The handle 20 is fastened at one end thereof with the blade 10 which is used in spreading cement mortar or things of that nature. The cap 30 is fastened with the head end of the handle 20. In the preferred embodiment of the present invention, the handle 20 and the head cap 30 are made integrally of a rigid plastic material by injection molding. The handle 20 is provided on the outer surface of the one end thereof with a skidproof area 12 providing friction to enable the thumb and the index finger to hold the skidproof area 12 securely.

In order to enhance the fastening of the head cap 30 with the head end of the handle 20, the head cap 30 may be provided with a plurality of protrusions 31 each having a retaining head 32 which is greater in diameter than the protrusions 31, as shown in FIG. 5 and FIG. 7. The head cap 30 is thus securely attached to the handle 20, best shown in FIGS. 5 and 7. Now referring to FIG. 4, and FIG. 6, in another embodiment of the invention, the head cap 30 is provided with a plurality of threaded holes 35 and bolts 33 which are engaged with the threaded holes 35. Each bolt 33 has a head 34 which provides a similar function the retaining head 32 of FIG. 5. The head cap 30 is thus securely fastened with the handle 20, thanks to the protrusions 31 or the bolts 33 which are securely anchored in the head end of the handle 20. The head cap 30 of the present invention is not vulnerable to being separated from the head end of the handle 20 even if the head cap 30 is used to hit a nail or screw that is not completely fastened onto something.

The embodiment of the present invention described above is to be regarded in all respects as being merely illustrative and not restrictive. Accordingly, the present invention may be embodied in other specific forms without deviating from the spirit thereof. The present invention is therefore to be limited only by the scope of the following appended claims.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6772994Apr 22, 2003Aug 10, 2004Mayhew Tool ProductsPry bar handle
US7434318Jul 22, 2005Oct 14, 2008United States Gypsum CompanyTool with enlarged hammer element
US7523525May 5, 2003Apr 28, 2009Mayhew Steel Products, Inc.Pry bar ergonomic handle
US8118037 *Oct 9, 2009Feb 21, 2012Rey CardenasErgonomic hair coloring brush
US8151470 *Jul 21, 2005Apr 10, 2012John Dennis HallmanApparatus and method for alleviating ice freeze-up of vehicle windows
US20110083690 *Oct 9, 2009Apr 14, 2011Rey CardenasErgonomic hair coloring brush
US20120204394 *Feb 10, 2012Aug 16, 2012Herman WielandHand Tool for Removing a Fly-Screen from a Window Frame
Classifications
U.S. Classification30/169, 16/DIG.19, 30/340, 81/492, 81/489, 16/436
International ClassificationB25G1/10
Cooperative ClassificationY10T16/498, B25G1/10
European ClassificationB25G1/10
Legal Events
DateCodeEventDescription
Apr 6, 2004FPAYFee payment
Year of fee payment: 4
Mar 4, 2008FPAYFee payment
Year of fee payment: 8
Aug 3, 2010ASAssignment
Owner name: GOODLY-CH ENTERPRISE CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DING WEI ENTERPRISES, INC.;REEL/FRAME:024779/0643
Effective date: 20100721
Jan 16, 2012FPAYFee payment
Year of fee payment: 12