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US4052499A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of reinforcing the handle of hockey sticks

Assignee: KARHU HOCKEY FINLAND Oy
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Filing: 1975-07-07
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Granted: 1977-10-04
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Expires: 1995-07-07
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Abstract

Abstract Method of reinforcing the handle of hockey sticks by molding against opposite sides of the handle a layer of synthetic resin in which are embedded reinforcing fibers extending longitudinally of the handle. These layers are bevelled along their opposite edges.

Inventors

  • 👤 Marcel Goupil
  • 👤 Gaston Ruel
  • 👤 Marc Ruel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 03:37
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B29C43/14; B29C70/00; B29C70/68; B29C70/86; B29C2791/00; B29C2791/001; B29K; B29K2101/00; B29K2101/10; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29L; B29L2031/00; B29L2031/46; B29L2031/463; B29L2031/52; B29L2031/5227

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 279 words
The method of reinforcing the handle of a hockey stick comprising the steps of laying a roving of reinforcing fibers impregnated with uncured thermosetting synthetic resin longitudinally in the flat bottom of an elongated open top female solid having straight side walls flaring upwardly from said bottom and having corner faces at the junction of said bottom and side walls which are inclined relative to said bottom and side walls, using the handle of a hockey stick as a male molding part, said handle made of a compressible material selected from the group consisting of wood and foam plastic and having a substantially rectangular cross-section defining a pair of wider main faces and a pair of narrower and faces, positioning said handle longitudinally in said mold and with one main face of said handle substantially parallel to said bottom and with the longitudinal edges of said main face abutting the respective side walls of said mold and retaining said main face spaced from said bottom, thereby defining a molding space between said female mold and said handle, pressing said handle towards said bottom and against said roving to cause said side walls to engage said narrower end faces of said handle and compress said handle and seal said molding space along said side walls, and to cause said roving to flatten and to fill said molding space and to adhere to said handle main face, heat curing said resin, removing said handle from said female mold with the cured resin forming a flat layer covering and adhering to said face and having bevelled longitudinal edges, and said layer having said fibers embedded therein and longitudinally extending along said handle.
Claim 2
Independent Claim 279 words
The method of reinforcing the handle of a hockey stick comprising the steps of laying a roving of reinforcing fibers impregnated with uncured thermosetting synthetic resin longitudinally in the flat bottom of an elongated open top female solid having straight side walls flaring upwardly from said bottom and having corner faces at the junction of said bottom and side walls which are inclined relative to said bottom and side walls, using the handle of a hockey stick as a male molding part, said handle made of a compressible material selected from the group consisting of wood and foam plastic and having a substantially rectangular cross-section defining a pair of wider main faces and a pair of narrower and faces, positioning said handle longitudinally in said mold and with one main face of said handle substantially parallel to said bottom and with the longitudinal edges of said main face abutting the respective side walls of said mold and retaining said main face spaced from said bottom, thereby defining a molding space between said female mold and said handle, pressing said handle towards said bottom and against said roving to cause said side walls to engage said narrower end faces of said handle and compress said handle and seal said molding space along said side walls, and to cause said roving to flatten and to fill said molding space and to adhere to said handle main face, heat curing said resin, removing said handle from said female mold with the cured resin forming a flat layer covering and adhering to said face and having bevelled longitudinal edges, and said layer having said fibers embedded therein and longitudinally extending along said handle.
Claim 3
Dependent Claim 21 words
A method as claimed in claim 1, further including heating said handle prior to pressing the same against the resin-impregnated roving.
Claim 4
Dependent Claim 32 words
A method as claimed in claim 1, wherein said handle is made of wood and is heated to about 150°F. for at least two minutes before laying said handle against said roving.
Claim 5
Dependent Claim 30 words
A method as claimed in claim 1, wherein said fibers are glass fibers and said resin is a thermosetting resin capable of adhering to wood and to set the fibers.

References Cited (Backward Citations)

CA591454A Cited
US1186692A Cited
US2749266A Cited
US3205288A Cited
US3657040A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-03 1981-04-04 1981-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-03 1985-04-04 1985-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-03 1989-04-04 1989-10-04 $7700.00 Window Closed / Lapsed

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