Spark plug socket wrench
OwnerChia Hui Peng, Ying Hao Penginventors
Life of this patent
Estimating the term…
Abstract
A spark plug socket wrench includes a socket member having a non-circular chamber for receiving a nut member of a spark plug, and having an engaging hole for engaging with a driving tool, and having a compartment communicating with the chamber and the engaging hole of the socket member, a casing engaged into the compartment of the socket member and having a space for receiving an insulator of the spark plug, and a spring-biased projection attached to the casing and having a detent biased by a spring member for engaging with the spark plug and for retaining the spark plug to the socket member and for preventing the spark plug from being disengaged from the socket member inadvertently.
Claims11
A spark plug socket wrench for engaging with a spark plug which includes a nut member and a fragile porcelain insulator, said socket wrench comprising:
- a socket member including a non-circular chamber formed in a first end portion thereof for receiving the nut member of the spark plug, and including an engaging hole formed in a second end portion thereof for receiving a driving shank of a driving tool and for allowing said socket member and the spark plug to be rotated and driven by the driving tool, and including a compartment formed in a middle portion of said socket member and communicating with said chamber and said engaging hole of said socket member,
- a casing engaged into said compartment of said socket member and including a space formed in said casing for receiving and engaging with the insulator of the spark plug, and
- a spring-biased projection attached to said casing for engaging with the spark plug and for retaining the spark plug to said socket member and to prevent the spark plug from being disengaged from said socket member and for allowing the spark plug to be stably rotated and driven by said socket member.
Dependencies are inferred from the claim text.