Wrench for a substantially circular workpiece
OwnerMasick C. Magarianinventor
Life of this patent
Estimating the term…
Abstract
A wrench for a substantially circular workpiece having an annular elastic body of rubber, plastic or the like adapted to be tensioned about the workpiece and having a resiliently compressible inner surface adapted to conform to the workpiece when the body is tensioned thereabout, and an outer surface providing outwardly extended grasping protuberances.
Claims7
A wrench for a substantially circular workpiece comprising an annular elastic body adapted to be tensioned about a workpiece and having a resiliently compressible inner surface adapted to conform to the workpiece when the body is tensioned thereabout, said body having an axial opening and predetermined forward and rearward ends, the inner surface having sets of serrations adjacent to the opposite ends with the individual serrations elongated axially of the opening, the set of serrations adjacent to the forward end being of a diameter approximately but larger than the diameter of the serrations at the rearward end to facilitate installation, and said body having an outer surface providing outwardly extended grasping protuberances.
In combination with a female hose coupling having opposite axial ends circumscribed by sets of serrations with the individual serrations being elongated longitudinally of the coupling, said coupling having a cylindrical surface between such sets, an annular elastic body having an axial opening therethrough providing inwardly disposed sets of serrations spaced to engage the serrations of the coupling with an inwardly disposed ridge between the serrations frictionally engaged with the cylindrical surface of the coupling and having outwardly disposed protuberances.
A wrench for a substantially circular workpiece comprising an annular elastic body having open opposite axial ends, said body being adapted to be tensioned about the workpiece, having a resiliently compressible inner surface adapted to conform to the workpiece when the body is tensioned thereabout, and an outer surface providing outwardly extended protuberances, the inner surface of the body having sets of serrations adjacent to opposite ends of the body with the individual serrations elongated axially of the body, the set of serrations adjacent to one end of the body being of a diameter less than the diameter of the set of serrations at the opposite end of the body and the sets being separated by a substantially cylindrical inwardly disposed ridge of a diameter less than that of the set of serrations of the larger diameter.
Dependencies are inferred from the claim text.