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US 4,420,016 AGranted
Kink-preventing spine for aquarium air hoses
OwnerRalph A. Nicholsinventor
Life of this patent
Estimating the term…
Abstract
A spine for flexible aquarium air hoses includes a plurality of rib members, each having at least three radially disposed ribs, and each adjacent pair of rib members are connected at the centers by a substantially flexible connecting member. The spine is inserted inside the flexible hose at areas where the hose is to be bent, thereby preventing kinking of the hose.
Claims9
A device for preventing kinks in air hoses for aquariums comprising:
- a plurality of rib members each having a plurality of radially disposed ribs;
- means extending between adjacent ribs for attaching the center of each of said rib members to the center of an adjacent one of said rib members, said means for attaching being substantially flexible under bending stresses;
- and wherein
- said rib members and said attaching means are integrally formed from a flexible extruded plastic material.
1 more element
A combination aquarium air hose and device for preventing kinks in the air hose comprising:
- an aquarium air hose of flexible plastic;
- an extruded plastic member of predetermined length extending longitudinally through said hose and having at least three radially disposed ribs extending through the length of the extruded member said extruded member is provided with a plurality of notches on said ribs at regular intervals whereby the bending strength of the extruded member is substantially lessened at the notches thus allowing for easy bending at the notches;
- and wherein said extruded plastic member bends with said air hose and said rib members preventing kinking thereof.
Dependencies are inferred from the claim text.