The present invention is a one-piece hand-held gardening tool comprising a rigid, high strength tool portion to be used as an implement in gardening activities and a rigid, high strength annular handle portion to be manually grasped when the tool portion is used as an implement in gardening activiti
The present invention is a one-piece hand-held gardening tool comprising a rigid, high strength tool portion to be used as an implement in gardening activities and a rigid, high strength annular handle portion to be manually grasped when the tool portion is used as an implement in gardening activities. The handle portion and the tool portion are molded integrally together from a molten material which provides the rigid, high strength tool portion and the rigid, high strength annular handle portion with suitable strength and rigidity for use in gardening activities when solidified. The handle portion has a hollow cavity surrounded by an annular, outer wall. The hollow cavity is formed in the handle portion by injecting pressurized gas into the molten material from which the rigid, high strength tool portion and the rigid, high strength annular handle portion are integrally molded before the solidification thereof. The hollow cavity is substantially enclosed within the handle portion to thereby prevent dirt and debris from collecting therein. The annular, outer wall surrounding the hollow cavity has a thickness suitable to provide the rigid, high strength annular handle portion with suitable strength and rigidity for use in gardening activities. The one-piece hand-held gardening tool is molded from less of the molten material than would be used to mold a substantially identical one-piece hand-held gardening tool devoid of hollow cavities and weighs less than the substantially identical one-piece hand-held gardening tool devoid of hollow cavities by virtue of forming the hollow cavity in the rigid, high strength annular handle portion thereof.
대표청구항▼
[ What is claimed:] [1.] A one-piece hand-held gardening tool comprising:a rigid, high strength tool portion constructed and arranged to be used as an implement in gardening activities; anda rigid, high strength annular handle portion constructed and arranged to be manually grasped with one hand whe
[ What is claimed:] [1.] A one-piece hand-held gardening tool comprising:a rigid, high strength tool portion constructed and arranged to be used as an implement in gardening activities; anda rigid, high strength annular handle portion constructed and arranged to be manually grasped with one hand when said tool portion is used as an implement in gardening activities,said handle portion and said tool portion being molded integrally together from a molten material which provides said rigid, high strength tool portion and said rigid, high strength annular handle portion with suitable strength and rigidity for use in gardening activities when solidified, said handle portion and said tool portion being dimensioned and configured to be suitable for one-handed use during gardening activities,said handle portion having a hollow cavity surrounded by an annular, outer wall, said hollow cavity being formed in said handle portion by injecting pressurized gas into the molten material from which said rigid, high strength tool portion and said rigid, high strength annular handle portion are integrally molded before the solidification thereof, said hollow cavity being substantially enclosed within said rigid, high strength handle portion to thereby prevent dirt and debris from collecting therein, said hollow cavity extending along at least a majority of a longitudinal extent of said handle portion,said annular, outer wall surrounding said hollow cavity having a thickness suitable to provide said rigid, high strength annular handle portion with suitable strength and rigidity for one-handed use in gardening activities,said one-piece hand-held gardening tool being molded from less of said molten material than would be used to mold a substantially identical one-piece hand-held gardening tool devoid of hollow cavities and weighing less than the substantially identical one-piece hand-held gardening tool devoid of hollow cavities by virtue of forming said hollow cavity in said rigid, high strength annular handle portion thereof.
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이 특허에 인용된 특허 (16)
Ewen James (Tucson AZ), Combined shovel and utility device.
Hartshorn Gordon K. (P.O. Box 338 Rollinsville CO 80474) Pyrtek Karen A. (50 Martins View Rd. Lake Hopatcong NJ 07849), Hand-held trowel with an accessible hollow handle compartment.
Hendry James W. (Spring Hill FL) Cahan Geoffery D. (Little Kingshill GB2), Process and apparatus for injection moulding and mouldings produced thereby.
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