Pipes and tubular conduits – Combined – With hose protector
Reexamination Certificate
1999-04-29
2001-06-05
Hook, James (Department: 3752)
Pipes and tubular conduits
Combined
With hose protector
C138S166000, C138S167000, C138S168000, C138S169000, C030S210000, C174S136000
Reexamination Certificate
active
06240967
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
REFERENCE TO A MICROFICHE APPENDIX
Not Applicable
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to the shielding of the current carrying power cords against the inadvertent damage that occurs to the alternating current (hereafter referred to by the acronym ac) power cord when the blade or blades of a cutting tool make mechanical contact with the power cord connected thereto during the normal operation of the electrically powered tool. Specifically the invention describes a sleeve assembly that protects the power cord from inadvertent damage when a length of an electric cord proximate the cutting tool make physical contact with the cutting edge of the blade assembly of a cutting implement during its use
2. Description of the Related Art
Longitudinally extended tubular-shaped covering or electric cord sleeves of thermoplastic synthetic materials with form memory are known and disclosed as in U.S. Pat. No 4,944,976 to Plumer and U.S. Pat. No 5,505,230 to Bartholomew all disclose various designs for tubular enclosures. These tubular enclosures are primarily designed to protect electrical conducting devices over an emended period of time from such undesireable elements such as water and soil. The present invention is designed to prevent accidental damage to power cords connected to electrical trimming or cutting tools. During the use of ac powered trimming and cutting tools, the blades of the tool are sometime inadvertently brought in to contact with the power cord. This accidental contact with the blades by the power cord almost always results in some damage to the power cord causing temporary loss of the use of the ac-powered tool. The diameter of the power cord in many instances is less than the linear distance between adjacent teeth or the blades of a cutting tool. In those cases, the power cord can become wedged between teeth during physical contact therebetween resulting in damage as by shearing or sawing action to the power cord. Typically, a power cord used to supply ac power to an electrical cutting or trimming tool does not have any protective shielding for preventing damage to the cord if it intersects the cutting path of the blade or blades.
It is the primary object of this invention to provide an extended split tubular sleeve that will provide protection for a current carrying power cord when it makes accidental contact with the operating blades of an ac powered tool such as a hedge trimmer.
SUMMARY OF THE INVENTION
The present invention provides a protective sleeve assembly which generally comprises: a tubular sleeve having a longitudinal body which includes a corrugated surface; a split seam that extends from the first end of the tubular sleeve to its second end; and, mating opposing surfaces which extends along the tubular sleeve from the first to the second ends of the longitudinally split seam. The mating surfaces being either compressively contacting or interlocking with defined male and female construction. The protective sleeve assembly is designed to receive, as by insertion at the longitudinal split seam, an electrical power cord and thereby provide protection against blades of a cutting tool when it is used to provide electrical power to cutting implements.
The advantages of the present invention will become apparent from reading the description of the invention in the preferred embodiments given below.
REFERENCES:
patent: 3517702 (1970-06-01), Mueller et al.
patent: 4422478 (1983-12-01), Pentney et al.
patent: 4647715 (1987-03-01), Butler
patent: 4723822 (1988-02-01), Merdic
patent: 4944976 (1990-07-01), Plummer, III
patent: 4970351 (1990-11-01), Kirlin
patent: 5566722 (1996-10-01), Bartholomew
patent: 5771941 (1998-06-01), Almeida
patent: 5832960 (1998-11-01), Amatsutsu et al.
patent: 5901756 (1999-05-01), Goodrich
patent: 5905231 (1999-05-01), Houte et al.
patent: 5967194 (1999-10-01), Martin
patent: 5993249 (1999-11-01), Benson, Jr.
patent: 6018874 (2000-02-01), Todd
Levert Francis Edward
Levert Gerald Clemins
Hook James
Kemp Corporation
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