초록 ▼

A super-tough molded elastomeric chewable polyurethane toy for an animal. The toy may be shaped to simulate a dog bone and to make swallowing difficult when being chewed. It is also chemically inert in the animal\s digestive system and is characterized by moderate hardness, resilient deformability,

A super-tough molded elastomeric chewable polyurethane toy for an animal. The toy may be shaped to simulate a dog bone and to make swallowing difficult when being chewed. It is also chemically inert in the animal\s digestive system and is characterized by moderate hardness, resilient deformability, large tensile strength and resistance to shearing. It is generally slightly heavier than water, but may be foamed or impregnated with air to float. The toy also makes use of a unique property of polyurethane whereby a surface-migrating flavoring pleasing to the animal is mixed with the polyurethane composition while the latter is in a liquid phase prior to being molded to the desired shape. Thus as the flavoring is chewed off or otherwise dissipated from the exterior surface of the toy, the flavoring is continuously replenished.

대표청구항 ▼

A molded one-piece polyurethane dog bone having an elongated body and enlarged opposite end portions; said bone having opposite lateral surfaces and upper and lower surfaces curving in compound curvatures; said curvatures comprising said upper and lower surfaces of said elongated body extending in o

A molded one-piece polyurethane dog bone having an elongated body and enlarged opposite end portions; said bone having opposite lateral surfaces and upper and lower surfaces curving in compound curvatures; said curvatures comprising said upper and lower surfaces of said elongated body extending in one direction from the mid-region of said body curving upwardly, the upper and lower surfaces of said body extending in the opposite direction from said mid-region curving downwardly, the upper and lower surfaces of the end portion in said one direction curving upwardly and downwardly respectively, the last named upper surface comprising a continuation of the upward curvature of said upper surface of said body, the last named lower surface recurving downwardly from the upward curvature of said lower surface of said body, the upper and lower surfaces of the end portion in said opposite direction curving upwardly and downwardly respectively, the last named upper surface recurving upwardly from the downward curvature of said upper surface of said body, and the last named lower surface comprising a continuation of the downward curvature of said lower surface of said body.