The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1989
Filed:
Jun. 15, 1987
James W Hancock, Cochranville, PA (US);
Other;
Abstract
A job site formed double sealed, double wall insulated spa pipe coupling is effected between two axially connected coupling components each having a plastic inner pipe and a concentric plastic outer pipe of considerably larger diameter with the pipes being connected by in situ foam insulation filing the space between the pipes. One component has the outer pipe and the foam insulation severed to expose the bare outer periphery of the inner pipe over a short length. The second component similarly formed includes a radially enlarged section over a short length to define a radially enlarged hub. An annular cylindrical collar of a length equal to the length of the hub is adhesively fixed on its inner periphery to the outer diameter of the outer pipe of the first component. The bare inner pipe is adhesively coated and fixed insertably into the interior of the radially enlarged inner pipe at said hub and an annular cylindrical coupler having a length equal to the combined axial length of the collar and the hub and having an inner diameter equal to the outer diameter of the collar and hub is adhesively sealed concentrically about the collar and hub to complete the double sealed pipe coupling.