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US3918667A Expired / Lapsed US ⏱️ 0.0 years remaining

Mounting for pipes and conduits in studs and joists

Assignee: Individual
•
Filing: 1973-10-18
•
Granted: 1975-11-11
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Expires: 1993-10-18
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Abstract

Abstract A notch slightly larger than the diameter of the pipe or conduit is cut into the edge of a stud or joist. The pipe or conduit is then installed, fitting into the notch. A sheet metal reinforcement which is right angle in cross-section and is formed with a slot in one flange is nailed to the stud or joist with the pipe fitting into the slot. A split plastic sleeve is then slipped over the pipe and moved axially so that it fits around the pipe and into the slot and notch. The sleeve has a flange which fits outside the reinforcement and preferably has lugs fitting into notches in the reinforcement to position the flange so that a chordal edge is aligned with the edge of the stud.

Inventors

  • 👤 James E Madden

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 10:49
CPC Classifications
F; F16; F16L; F16L5/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 244 words
For use in mounting a pipe extending through a notch in a stud, in combination, a sheet metal reinforcement of L-shape cross-section having a first and a second flange disposed at right angles to each other and joining at a corner, said first flange formed with a slot extending from its outer edge to said corner, said slot having a keyhole-shape enlargement at said corner and notches formed in said first flange at said keyholeshape enlargement, both said flanges being formed with holes for fastening means to attach said reinforcement to a stud, and a sleeve comprising a cylindrical portion having an outside diameter less than that of said keyhole enlargement and greater than the width of said slot remote from said keyhole enlargement and having a peripheral flange at one end, said cylindrical portion and said peripheral flange formed with a slit to permit said sleeve to be distended and slipped over a pipe prior to assembly of said combination and then moved axially into assembled position with said peripheral flange in contact with said first flange and said cylindrical portion extending from said first flange on the same side of said first flange as said second flange, said sleeve being formed with ears complementary to said notches to locate said sleeve relative to said reinforcement and to restrain movement of said sleeve relative to said reinforcement after assembly, said peripheral flange being truncated at a chordal line aligned with said second flange.
Claim 2
Dependent Claim 244 words
For use in mounting a pipe extending through a notch in a stud, in combination, a sheet metal reinforcement of L-shape cross-section having a first and a second flange disposed at right angles to each other and joining at a corner, said first flange formed with a slot extending from its outer edge to said corner, said slot having a keyhole-shape enlargement at said corner and notches formed in said first flange at said keyholeshape enlargement, both said flanges being formed with holes for fastening means to attach said reinforcement to a stud, and a sleeve comprising a cylindrical portion having an outside diameter less than that of said keyhole enlargement and greater than the width of said slot remote from said keyhole enlargement and having a peripheral flange at one end, said cylindrical portion and said peripheral flange formed with a slit to permit said sleeve to be distended and slipped over a pipe prior to assembly of said combination and then moved axially into assembled position with said peripheral flange in contact with said first flange and said cylindrical portion extending from said first flange on the same side of said first flange as said second flange, said sleeve being formed with ears complementary to said notches to locate said sleeve relative to said reinforcement and to restrain movement of said sleeve relative to said reinforcement after assembly, said peripheral flange being truncated at a chordal line aligned with said second flange.
Claim 3
Dependent Claim 19 words
The combination of claim 1 in which said cylindrical portion is thin-walled and formed with external longitudinal reinforcing splines.

References Cited (Backward Citations)

US973568A Cited
US1062635A Cited
US1094990A Cited
US1809864A Cited
US2420826A Cited
US3034185A Cited
US2952730A Cited
US3229026A Cited
US3366356A Cited
US3481571A Cited
US3634608A Cited
US3684220A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-10 1979-05-12 1979-11-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-10 1983-05-12 1983-11-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-10 1987-05-12 1987-11-11 $7700.00 Window Closed / Lapsed

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