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US3861674A Expired / Lapsed US ⏱️ 0.0 years remaining

Composite diving board

Assignee: NORMAN BUCK Manufacturing CO Inc
•
Filing: 1973-07-09
•
Granted: 1975-01-21
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Expires: 1993-07-09
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Abstract

Abstract A composite diving board has an inboard end portion adapted to be secured to a fixed support, an intermediate and fulcrum area portion to be supported by a fulcrum, and a free tip end portion. Such a composite diving board comprises a metallic core and an enveloping tubular structure. The metallic core comprises preferably a plurality of longitudinally extending extruded members adhesively bonded together to form a longitudinally extending web with downwardly projecting ribs. The strength of the bond between said extruded members is increased by bonding a horizontal member, preferably metallic, to the upper surface of the web. While said web and ribs may be formed by a single extrusion, extrusion problems increase with the cross-section size increase of the extrusion and hence, the multiple piece construction of smaller pieces is preferable. The enveloping tubular structure comprises substantially low density polyurethane foam disposed between the metallic ribs and adjacent the outside of the ribs on both sides and at all areas other than the fulcrum area and the fixed end portion of the board. Preferably, the lower surface of the foam and the lower edges of the ribs lie in a common plane. A convering layer, preferably of fiberglass and resin, envelopes the metal web and the foam and is connected therewith. Preferably, a skid-resisting surface is disposed over the top surface of the board and over the horizontal member secured to the top of the web. Blocks of closed cell, relatively low density neoprene are disposed between the ribs, underlie and are connected with the botton of said web, and are disposed at the fulcrum areas of the board. Blocks of solid polyethylene are disposed between the ribs, underlie and are connected with the bottom of said web, and are disposed at the anchor or inboard end of the board. Below said blocks are disposed sheets of solid, relatively high density neoprene. Other features are disclosed, the principal ones of which include: watertight sleeve means passing through the board at the fixed or inboard end portion; bolt means passing through said sleeve and securing the inboard end of the board to a fixed support; a layer of skid-resisting means covering the upper heads of said bolt means and covering the upper surface of the board; and means to bond the various parts of the composite board together.

Inventors

  • 👤 Jr Norman Buck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 16:33
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; A; A63; A63B; A63B5/00; A63B5/08; A63B5/10; B32B27/00; B32B27/06; B32B27/08; B32B7/00; B32B7/04; B32B7/12; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2315/00; B32B2315/08; B32B2315/085; B32B2323/00; B32B2323/04; B32B2363/00; B32B2375/00; Y; Y10; Y10S; Y10S273/00; Y10S273/04; Y10S273/07; Y10S273/08; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/239; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/24521; Y10T428/24537; Y10T428/24777; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249987; Y10T428/24999

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 124 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metallic web having a plurality of downwardly projecting ribs; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs, and wherein the substantially low density polyurethane foam is adjacent the outer surface of an outer rib, adjacent the bottom surface of said web, and said foam extends angularly toward and terminates at an outer edge of said web; and an enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 2
Dependent Claim 124 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metallic web having a plurality of downwardly projecting ribs; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs, and wherein the substantially low density polyurethane foam is adjacent the outer surface of an outer rib, adjacent the bottom surface of said web, and said foam extends angularly toward and terminates at an outer edge of said web; and an enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 3
Dependent Claim 36 words
The combination of claim 1, wherein the lower surface of said foam is substantially flush with the lower surfaces of said ribs and the lower surface of said surface layer extends substantially in a common plane.
Claim 4
Dependent Claim 17 words
The combination of claim 1, wherein said board is enveloped in a layer of fiberglass and resin.
Claim 5
Dependent Claim 18 words
The combination of claim 3, wherein the upper surface of the board is provided with a skid-resisting surface.
Claim 6
Dependent Claim 100 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metallic web having a plurality of downwardly projecting ribs, said web and said ribs comprising a plurality of angle and channel sections adhered together; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs; and An enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 7
Dependent Claim 100 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metallic web having a plurality of downwardly projecting ribs, said web and said ribs comprising a plurality of angle and channel sections adhered together; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs; and An enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 8
Dependent Claim 25 words
The combination of claim 5, wherein a horizontal sheet is disposed over and adhered to said web, and a covering is provided over said sheet.
Claim 9
Dependent Claim 15 words
The combination of claim 6, wherein the cover over said sheet comprises a metallic sheet.
Claim 10
Dependent Claim 49 words
The combination of claim 6, wherein bolt means are provided having heads positioned above said metal sheet and stem portions extending through the board to secure it to a fixed support means, and a layer of skid-resisting means covers the board, and covers the heads of said bolt means.
Claim 11
Dependent Claim 119 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metalic web having a plurality of downwardly projecting ribs; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs; and blocks of cushioning material disposed between adjacent ribs at the fulcrum area of the diving board and connected with the bottom surface of said web and the adjacent side walls of said ribs; and an enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 12
Dependent Claim 119 words
A composite diving board adapted to be secured at its inboard end portion to a fixed support, be supported intermediate its length by a fulcrum, and having its tip portion free and unsupported comprising: a metalic web having a plurality of downwardly projecting ribs; substantially low density polyurethane foam disposed between adjacent ribs and connected with the bottom surface of said web and the adjacent side walls of said ribs; and blocks of cushioning material disposed between adjacent ribs at the fulcrum area of the diving board and connected with the bottom surface of said web and the adjacent side walls of said ribs; and an enveloping layer means enclosing and connected with said web, ribs, and polyurethane foam.
Claim 13
Dependent Claim 23 words
The combination of claim 9, wherein a layer of fiberglass and resin is disposed between said metal web and ribs and said blocks.
Claim 14
Dependent Claim 21 words
The combination of claim 10, wherein a primer is used between said metal web and ribs and said fiberglass and resin.
Claim 15
Dependent Claim 35 words
The combination of claim 9, wherein a sheet of impact and abrasion resisting material is disposed below and connected with said blocks, said sheet being adapted to rest directly on a diving board fulcrum means.
Claim 16
Dependent Claim 28 words
The combination of claim 6, wherein bolt means extend through the board to secure it to a fixed support means, and plastic sleeve means encase the bolt means.
Claim 17
Dependent Claim 44 words
The combination of claim 5, wherein blocks of relatively high density material resisting compression are disposed between ribs at the inboard end portion of the board and are connected with the bottom surface of said web and the adjacent side walls of said ribs.
Claim 18
Dependent Claim 20 words
The combination of claim 14, wherein fiberglass and resin are disposed between said metal web and ribs and said blocks.
Claim 19
Dependent Claim 36 words
The combination of claim 14, wherein a sheet of impact and abrasion resisting material is disposed below and connected with said blocks, said sheet being adapted to rest directly on a diving board fixed support means.

References Cited (Backward Citations)

US2831688A Cited
US3035837A Cited
US3249659A Cited
US3184233A Cited
US3416793A Cited
US3709733A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-20 1978-07-22 1979-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-20 1982-07-22 1983-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-20 1986-07-22 1987-01-21 $7700.00 Window Closed / Lapsed

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