Abstract An engine block heater has a cylindrical body member adapted to be inserted into a round opening in an engine block wall and carries an electric heating coil for heating the space on the inner side of the wall. The body member is secured in the opening by means of an angular claimping member mounted on the inner side of the body member and formed of a bendable material. The clamping member has a longitudinal dimension less than the diameter of the opening and is engaged on the inside angle thereof by a pressure bar which is threaded on a screw extending through the body member whereby as the screw is turned from the outer side of the body member the pressure bar bears against the clamping member to straighten it into a longitudinal dimension greater than the diameter of the opening to engage against the inner side of the wall. The clamping member is channel-shaped in cross section and the pressure bar has its ends seated in the channels.
An engine jacket heater adapted to be inserted inwardly through a round opening in a cylinder block wall and secured thereto comprising, a. a cylindrical body member adapted to plug said opening and having a heating element mounted thereon to extend inwardly into the block with electric connection terminals projecting from the outer side thereof, b. a screw extending axially and loosely through the body member with the head thereof on the outside, c. an elongated clamping member having a broad V-shape with a pair of legs joined by a bendable center section, said center section journaled on the screw on the inner side of the body member with the legs diverging in their extension from the body member, d. the legs of the clamping member being channel shaped in cross section opening away from the body member, e. a pressure bar having a length less than the diameter of the opening and being threaded on the screw with the ends thereof slidably seated in the said leg channels whereby as the screw is turned from the outside and threaded into the pressure bar the pressure bar will be pulled toward the body member to spread the legs of said clamping member and bend said member toward a flattened condition, f. said clamping member having an initial length from tip to tip of the legs less than the diameter of the opening but having a length greater than the diameter of the opening when it is in its flattened condition.
Claim 2
Dependent Claim
250 words
An engine jacket heater adapted to be inserted inwardly through a round opening in a cylinder block wall and secured thereto comprising, a. a cylindrical body member adapted to plug said opening and having a heating element mounted thereon to extend inwardly into the block with electric connection terminals projecting from the outer side thereof, b. a screw extending axially and loosely through the body member with the head thereof on the outside, c. an elongated clamping member having a broad V-shape with a pair of legs joined by a bendable center section, said center section journaled on the screw on the inner side of the body member with the legs diverging in their extension from the body member, d. the legs of the clamping member being channel shaped in cross section opening away from the body member, e. a pressure bar having a length less than the diameter of the opening and being threaded on the screw with the ends thereof slidably seated in the said leg channels whereby as the screw is turned from the outside and threaded into the pressure bar the pressure bar will be pulled toward the body member to spread the legs of said clamping member and bend said member toward a flattened condition, f. said clamping member having an initial length from tip to tip of the legs less than the diameter of the opening but having a length greater than the diameter of the opening when it is in its flattened condition.