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US4512042A Expired / Lapsed US ⏱️ 0.0 years remaining

Railing for spa or the like

Assignee: Kohler Co
•
Filing: 1983-05-16
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Granted: 1985-04-23
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Expires: 2003-05-16
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Abstract

Abstract A railing for a spa or the like is disclosed. In one embodiment, there is a tubular railing having an upwardly extending portion leading from an inlet, a downwardly extending portion leading to an outlet, and a cross portion connecting the upper ends of the upwardly and downwardly extending portions. The railing has an outer decorative tube and an inner insulating tube. The insulating tube is formed so as to permit the passage of air through the railing from the inlet to the outlet end. The railing provides a Hartford loop to protecting an air pump from the backflow of water from a spa, while at the same time hiding the connection between the pump and spa. The railing is also specially designed such that the grip portion of the railing does not become unacceptably hot due to air pumped through the railing.

Inventors

  • 👤 William H. Striegel
  • 👤 Willard H. Schmitz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 01:17
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/144; A; A61; A61H; A61H33/00; A61H33/02; A61H33/026; A61H33/60; A61H33/601; A61H33/6021; A61H33/6026; A61H2033/023

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 194 words
A railing for a spa or the like, comprising: a tubular railing having an upwardly extending portion leading from an inlet, a downwardly extending portion leading to an outlet, and a cross portion connecting the upper ends of the upwardly and downwardly extending portions; at least a grip section of said railing comprising an outer decorative tube and a flexible inner insulating tube; said insulating tube having been formed separately from the outer decorative tube and then having been positioned therein so as to permit the passage of air through the insulating tube, from its inlet end to its outlet end; a cover ring which bears axially against and covers the junction of the insulating tube and the outer decorative tube in the direction of air flow to restrict the entry of air therebetween; and a guide sleeve extending from said cover ring and inserted in the inlet end of the insulating tube to guide air into the insulating tube; whereby the sleeve limits the inward movement of the inlet end of the flexible insulating tube away from the outer tube, and covers a radially inward junction between the cover ring and insulating tube.
Claim 2
Dependent Claim 194 words
A railing for a spa or the like, comprising: a tubular railing having an upwardly extending portion leading from an inlet, a downwardly extending portion leading to an outlet, and a cross portion connecting the upper ends of the upwardly and downwardly extending portions; at least a grip section of said railing comprising an outer decorative tube and a flexible inner insulating tube; said insulating tube having been formed separately from the outer decorative tube and then having been positioned therein so as to permit the passage of air through the insulating tube, from its inlet end to its outlet end; a cover ring which bears axially against and covers the junction of the insulating tube and the outer decorative tube in the direction of air flow to restrict the entry of air therebetween; and a guide sleeve extending from said cover ring and inserted in the inlet end of the insulating tube to guide air into the insulating tube; whereby the sleeve limits the inward movement of the inlet end of the flexible insulating tube away from the outer tube, and covers a radially inward junction between the cover ring and insulating tube.

References Cited (Backward Citations)

US2974746A Cited
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US3090489A Cited
US3463691A Cited
US3559694A Cited
US4072612A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-04-22 1988-10-22 1989-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-04-22 1992-10-22 1993-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-04-22 1996-10-22 1997-04-23 $7700.00 Window Closed / Lapsed

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