CA2055104C - Hockey puck - Google Patents

Hockey puck

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Publication number
CA2055104C
CA2055104C CA 2055104 CA2055104A CA2055104C CA 2055104 C CA2055104 C CA 2055104C CA 2055104 CA2055104 CA 2055104 CA 2055104 A CA2055104 A CA 2055104A CA 2055104 C CA2055104 C CA 2055104C
Authority
CA
Canada
Prior art keywords
hockey puck
projections
puck
hockey
puck according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA 2055104
Other languages
French (fr)
Other versions
CA2055104A1 (en
Inventor
Michael D. Keating
Robert W. Norris
Ronald K. Jakubas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2055104 priority Critical patent/CA2055104C/en
Publication of CA2055104A1 publication Critical patent/CA2055104A1/en
Application granted granted Critical
Publication of CA2055104C publication Critical patent/CA2055104C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

An ice hockey puck has more uniform play during a period when provided with projections positioned circumferentially about the end surfaces which lift the puck from the surface to reduce the snow plowing effect, and the stability of the puck is maintained when the projections are dome-shaped to terminate in arcuate or flat ends.

Description

Docket Number: ~-100-CAN
HOCKEY PUCK
sackground of khe Invention Field of the Invention This invention relates to an improvement in a sports game piece, and in one aspact, to an improved hockey puck for the game of ice hockey.

Description of the Prior Art Hockey pucks have traditionally been the same black cylindrical shape, about 3 inches in diameter, and one inch thick, weighing about 5-1/2 to 6 ounces. The outer cylindrical edge is knurled or ribbed with ridges and grooves following a generally helical path. They are generally formed of vulcanized rubber. Major manufacturers of the conventional pucks are the Viceroy Manufacturing Company and the Sherbrooke Drolet Company.
The traditional black hockey puck will cause black marks to form on the transparent wall of plexiglass surrounding the rink above the boards when the puck strikes the wall, and continual maintenance to clean the same for the spectators is required.
Further, the standard hockey puck becomes slower as the ice is worn, developing a snow condition, making the control of the puck more difficult for the players. The roughensd and loosened ice slows the traditional puck as it has a snow plowing effect as it is moved over the ice and, at that time, greater attention by the player is required to maintain control of the hockey puck.
Hockey players tape the blade of the hockey sticks and this is usually done with a black tape. Such tape with the black puck makes the puck harder to see coming off the stick. Having a puck which is harder to see against the black background of the tape is thus more dangerous to players and fans.
The hockey puck of the present invention meets the size and weight requirements of the standard hockey ~, f~

puck which is regulation with the game. The hockey puck of the present invention reduces the snow plowing effect that the hockey puck has with the ice, and particularly, as the ice becomes loosened and a snow develops on the surface. The hockey puck of the present invention mov~s more consistently and rapidly on the ice and affords greater control of the puck by the hockey player. The hockey puck may have dome shaped projections which are arcuate or flat on their outer surface. The flat surfaces on the projections give the puck the advantages of the rounded profile, in that they lift the puck off the surface o~ the ice and reduce the snow plow effect, but the flat ends on the projections give the puck more stability, due to the increased contact area with the rough and wet ice. A puck having the projections will travel more uniformly over the ice during the entire period of play.

Summary of the Invention The hockey puck of the present invention comprises a 5-1/2 to 6 ounce cylindrically object 3 inches in diameter and one inch thick. The pucX is provided with an outer cylindrical side surface which may be conventionally knurled to increase the frictional surface of ~he outer side wall. The puck is provided with axially spaced end walls, each being formed with at least three symmetrically circumferentially spaced circular projections having a domed, arcuate or flat, profile. In a preferred embodiment the projections, and end walls, including the projections, have a coating of material having a lower coefficient of friction than the material of the hockey puck. A preferred coating is polytetrafluoroethylene. A ring or band of a material, formed of the same material as the puck, but of a color different than the puck is inset in the puck around the central portion of the periphery of the side wall of the puck. The entire side wall of the puck including the : , :

-.

--3--hand is knurled.

Brief Description of the Drawinqs The present invention will be further described with reference to the accompanying drawing wherein:
Figure 1 is a top plan view of the hocXey puck, th~ bottom view is the same;
Figure 2 is a side elevational view of the hockey puck:
~igure 3 is a detailed fragmentary elevational view of one of the projections on one end of the hockey puc3c;
Figure 4 is a vertical fragmentary sectional view of a further embodiment of a hockey puck constructed according to the present invention;
Figure 5 is a top plan view of another embodiment of the hockey puck of the present invention, the bottom view is the same;
Figure 6 i.s a side elevational view of the hockey puck of Figure 5, partially in section; and Figure 7 is a detailed fragmentary elevational view of one of the projections on one end of the hocXey puck of Figure 5.

Descri~tion of the Preferred Embodiment The present invention provides an improved hockey puck, generally designated 5, having a body 6 of the conventional circular or cylindrical shape with a thickness o~ about 2.54 cm and 7.62 cm in diameter. The outer cylindrical edge 8 of the puck is formed with ridges and grooves or a knurled surface, affording increased friction as designated by the knurled pattern 9.
Projecting from each of the end surfaces 10 and 11 are plurality of circular projections 12 positioned adjacent the outer wall and spaced symmetrically with respect to the periphery of the surface. Each projection has a height of between about 0.25 to 1 mm, preferably 0.5 to 0.7 mm above the surface and has a radius of between 1.27 to 6.35 mm, preferably 4.75 mm. The projection is preferably generally domed-shaped, and as illustrated in Figure 3, the profile is not formed on a predetermined center to be like that of a hemisphere but tapers from the center toward each of the edges of the projections where a small radiused edge is formed at the base of the projection. There are at least 3 projections 12, but, preferably ~ projections are spaced equally about the center.
The center of the projection is about 3.17 cm from the center of the hockey puck, and the total thickness of the hockey puck from the top of one pro~ection on one side 10 to the top of the projection 12 on the other side 11 is about 2.62 cm.
These projections and the end, as illustrated in Figure 3, are preferably provided with a coating 14 of polytetrafluorethylene, affording a coefficient of friction for the projections and end walls which is less than the coefficient of the material forming the body of the hcckey puck.
In Figure ~ there is illustrated a second embodiment of a hockey puck constructed according to the present invention wherein the body 16 is molded with a band 18 of material formed of a color differing from the black color of the puck. This band is formed of the same material as the puck but has a pigment added to give it a fluorescent color, orange or yreen. The band 18 is 1.27 to 13mm (0.500 + 0.300 to 0.510 + 0.005 inch) wide and is in a groove 19 3 to 3.3 mm (0.125 + 0.010 inch) deep.
The band 18 is flush with the edge wall. The edge wall and band 18 are both knurled. The band 18 provides higher visibility of the puck, for the players and for the fans.
A further embodiment is illustrated in Figures 5, 6 and 7. The hockey puck 20 has a body 21 of the , ' ' - ~ .

conventional circular or cylindrica:L shape with a thickness of about 2.54 cm and 7.62 cm in diameter. The outer cylindrical edge 22 of the puck is formed with ridges and grooves or a knurled surface, affording increased friction as designated by the knurled pattern 24, see Figure 6.
Projecting from each of the end surfaces 25 and 26 are a plurality of circular projections 28 positioned adjacent the outer wall of the puck and spaced symmetrically with respect to the pexiphery of the surface. Each projection has a height of between about 0.25 to lmm (o.01 to 0.04 inch), preferably 0.5 to 0.7mm (0.022 to 0.028 inch) above the end surface and has a radius of between 1.27 to 6.35mm (0.05 to 0.25 inch) preferably 4.75mm (0.187 inches). The projections 28 are generally domed-shaped and in this embodiment have a flat end surface, and, as illustrated in Figure 7, the profile is flat with blended radii leading to the edges and base of the projections. The edges are at an angle of about 45 degrees, between 44 and 46 degrees, to the end surface, 25 or 26, of the puck 20. The projections terminate with flat surfaces parallel to each other and to the surface of the puck. There are at least 3 projections 28, but, preferably 8 projections are equally spaced circumferentially and about the center of the puck. The projections are positioned as near the edge of the end surfaces 25 and 26 as possible, so the tangents of the circles formed by the radii joining the edges to the surface and the radiused edge of the puck coincide.
The center of the projections are about 3.17 (1.25 inches~ from the center of the hockey puck, and the total thickness of the hockey puck from the top of one projection on one side 25 to the top of the projection 28 on the other side 26 is about 2.62 cm to 2.77 cm (1.032 inches to 1.09 inches).
The entire hockey puck 20 can be provided with a coating of a material affording a coefficient of friction for the pro~ections 28 and end walls, 25 and 26, which i6 less than the coefficient of friction of the material forming the body of the hock~y puck 20. An example of such a material is polytetrafluorethylene.
The puck 20 may also have a band 30 about its periphery similar to the band 18.
The body 6, 16 or 20 of the puck may be formed of vulcanized rubber as is standard, but is preferably formed of a mixture of material having a durometer measure similar to that of vulcanized rubber. The example of a material is:
Product Supplier Parts by Weiqht Copo 1502 Copolymer, Inc. 100 Hard clay 37.5 15 Cumar Resin H2.5 5 Carnauba Wax 2 Zinc oxide 5 Stearic acid Sulfur 10 20 Methyl tuads 0.6 Altax R. T. Vanderbilt 2 Carbon black N550 2 Whiting 37.5 Other suitable polymeric materials may be suitable thermoplastic rubbers (TPR) having a durometer measure of 65 to 90. The bands 18 and 30 are placed into the groove, see 19 in Figure 4, and is also formed of the same material except the pigment is a fluorescent pigment of orange or green and not carbon black.
Having thus dessribed the invention it is to be appreciated that modifications may be made in makerial or ~ in some di ?n~ions and not depart from the spirit of the invention as defined in the appended claims.

.

Claims (11)

1. A hockey puck having a body of a circular shape and thickness of a conventional hockey puck, said body having oppositely projecting spaced ends, characterized in that each end has at least three symmetrically circumferentially spaced circular dome-shaped projections formed integrally with said body on said ends and extending therefrom between 0.25 to 1mm and terminating with a dome-shaped end surface substantially parallel to each other and to the surface of the puck.
2. A hockey puck according to claim 1 wherein said projections terminate in flat surfaces.
3. A hockey puck according to claim 2 wherein the projections and end portions of the puck are coated with polytetrafluoroethylene.
4. A hockey puck according to claim 1 or claim 2 wherein said projections have a diameter of between about 9 to 10mm at their base.
5. A hockey puck according to claim 1 or 2 wherein said projections extend from said end portions between about 0.5 and 0.6 mm.
6. A hockey puck according to claim 1 wherein there are eight projections which are domed-shaped and symmetrically spaced near the periphery of each end.
7. A hockey puck having a body of a shape, size, weight and thickness to meet the specifications for a regulation hockey puck, said body having opposite circular ends and a peripheral edge wall connecting said ends, said edge wall having a groove extending circumferentially of said body, a band of material similar to the material of said body and comprising a pigment of a color other than said body disposed in said groove, said band having an outer surface flush with the peripheral edge wall of said body, and said body having at least three symmetrical circumferentially spaced dome shaped projections extending from each of said circular ends and formed integrally with said body.
8. A hockey puck according to claim 7 wherein said projections are formed with flat ends and each projection has a center which centers are spaced around the end surface of the body about 3.17 mm from the center of each said end surface.
9. A hockey puck according to claim 7 wherein said ends are coated with polytetrafluoroethylene.
10. A hockey puck according to claim 7 or 8 wherein said projections extend from said ends between about 0.5 to 0.7 mm.
11. A hockey puck according to claim 7 or 8 wherein said pigment gives said band a fluorescent color.
CA 2055104 1991-11-07 1991-11-07 Hockey puck Expired - Fee Related CA2055104C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2055104 CA2055104C (en) 1991-11-07 1991-11-07 Hockey puck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2055104 CA2055104C (en) 1991-11-07 1991-11-07 Hockey puck

Publications (2)

Publication Number Publication Date
CA2055104A1 CA2055104A1 (en) 1993-05-08
CA2055104C true CA2055104C (en) 1998-09-29

Family

ID=4148717

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2055104 Expired - Fee Related CA2055104C (en) 1991-11-07 1991-11-07 Hockey puck

Country Status (1)

Country Link
CA (1) CA2055104C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2174579A1 (en) * 1996-04-19 1997-10-20 Ross Ainslie Puck for playing of hockey and hockey-like games on a variety of playing surfaces

Also Published As

Publication number Publication date
CA2055104A1 (en) 1993-05-08

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