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| Number | Title | Issue Date |
| 7232388 | Polymer composite bat A baseball bat is described having of an elongated cylindrical handle portion for gripping, a cylindrical barrel portion for striking and a tapered cylindrical mid-section connecting the handle portion and the barrel portion, wherein at least the barrel portion is t... | 06/19/2007 |
| 7229370 | Filament wound bat and winding and molding method therefore A method and apparatus for manufacturing a bat having an exterior and a hollow interior. The method consists of successive steps of placing a first layer of filament onto a rotating mandrel while simultaneously applying resin to the first layer; winding additional l... | 06/12/2007 |
| 7163475 | Ball bat exhibiting optimized performance via discrete lamina tailoring A ball bat exhibits improved barrel performance in regions located away from the “sweet spot” of the bat barrel, as a result of discrete lamina tailoring in those regions. One or more layers, or laminae, in regions of the bat barrel away from the sweet spot, are... | 01/16/2007 |
| 7118488 | Training putter with laser line projecting device A training putter with a laser line projecting device can be used for putting training to improve putting skill. The device is affixed to a putter head above its sweet spot, and emits a vertical light fan which projects a line on the around normal to the face of the... | 10/10/2006 |
| 7115054 | Ball bat exhibiting optimized performance via selective placement of interlaminar shear control zones A ball bat exhibits improved barrel performance in regions located away from the “sweet spot” of the bat barrel, as a result of strategic placement of interface shear control zones (“ISCZs”) in the barrel. The ball bat includes a barrel having a first region... | 10/03/2006 |
| 7052406 | Bowling pin and manufacturing method of the same The present invention provides a bowling pin which exhibits the excellent durability while satisfying conditions required on the bowling pin such as a weight and a dry sound which is generated at the time of hitting. A hollow portion which extends in the vertical di... | 05/30/2006 |
| 7011588 | Insert for a bat having an improved seam orientation A bat includes a substantially tubular frame, a substantially tubular body and at least one sheet. The frame extends along a longitudinal axis. The frame has a handle portion and a primary hitting portion. The body is coaxially aligned with the hitting portion of th... | 03/14/2006 |
| 7008339 | Composite over-wrapped lightweight core A baseball bat having a lightweight core comprised of an elongated handle portion and a striking portion, wherein the handle portion and/or the striking portion is/are over wrapped with a singular thin external polymer composite skin bonded with resin directly and r... | 03/07/2006 |
| 6790401 | Method for manufacturing a bowling pin A plastic bowling pin and method for manufacturing the bowling pin uses a first mold 8 having first axial rods 9 and 10 displaceable into and from the first molding cavity along a longitudinal axis “a” and a second mold 15 having seco... | 09/14/2004 |
| 6666775 | Pin for ninepins and bowling A pin for playing ninepins or for bowling is provided. The base portion of the pin is detachable from the pin body and is replaceable. The base portion comprises a material that is more robust, wear resistant and/or has a higher resistance to scoring than... | 12/23/2003 |
| 6478686 | Bowling pin having reinforcing structure A bowling pin includes a bar secured on top of a core for forming a neck portion of the bowling pin, and a reinforcing rod engaged in the core and the bare for reinforcing the core and the bar. The bar may include a projection engaged into the core for so... | 11/12/2002 |
| 6196928 | Plastic pin and method of making same A plastic pin, including a bowling pin, for bowling lanes, and a method of making same, are provided. The pin has a hard shell for surrounding a core of cellular and/or porous polymeric material. The shell defines a hollow interior and in a lower portion ... | 03/06/2001 |
| 6083112 | Method for manufacturing plastic bowling pins A method for manufacturing a plastic bowling pin that has a porous core and a resilient envelope includes the step of blow-forming the envelope in a blowing mold and removing the envelope from the blowing mold. The envelope is then cooled to a temperature... | 07/04/2000 |
| 6048283 | Toy game implements A toy game implement in the form of a baseball bat, a football or a bowling pin, each especially well-suited to manufacture by injection molding. The toy game implement includes a body having longitudinally spaced apart semi-annular ribs supported and rei... | 04/11/2000 |
| 5830074 | Magnetically responsive bowling pins A magnetically responsive bowling pin having a first upwardly open cavity in its head portion and a second elongated cavity smaller and cross-section and extending downwardly in the head portion of a bowling pin. The first cavity receives a plastic cap ha... | 11/03/1998 |
| 5655970 | Plastic pin A plastic pin having a porous and/or cellular core that is surrounded by a hard shell. To be able to influence the level of the center of gravity of the pin, the shell is provided with an aperture in which is secured an insert in the form of a hollow body... | 08/12/1997 |
| 5649869 | Fluorescent bowling pins A bowling pin for use with an automatic scorer includes a wood core and an ionomer cladding having an outer surface which surrounds the standing portion of the pin. The pin includes a first fluorescent coating on the outer surface in a preselected area, p... | 07/22/1997 |
| 5630762 | Method of making a bowling pin having expanded copolymer core Bowling pins formed by molding a plastic shell about a foamed plastic core have not heretofore come into practical use because of inability to withstand shocks in service, resulting in separation of the shell from the core. According to the present invent... | 05/20/1997 |
| 5595542 | Material filled plastic bowling pin A plastic pin, such as a bowling pin, for bowling lanes. The pin has a hard shell that surrounds a core of cellular and/or porous material, preferably a thermoplastic material. The interior of the shell has at least one partition that divides the hollow i... | 01/21/1997 |
| 5569093 | Hollow plastic pin with varying wall thickness A plastic pin, including a bowling pin, for bowling lanes, and a method of making the same. The pin has a hard shell that surrounds a core of cellular and/or porous material. The shell has a lower bulging portion, thereabove a neck-like reduced diameter p... | 10/29/1996 |
| 5510067 | Method of producing a plastic pin having an insert in a neck portion A method of producing a plastic pin, including a bowling pin, having a cellular and/or porous core that is surrounded by a solid-walled, noncellular and nonporous shell. The shell is initially produced as a whole body in a mold. While the material of the ... | 04/23/1996 |
| 5354239 | Bowling pin with interlocking shell to form core and base A method for forming a plastic composite bowling pin includes removing the surface skin of a foam core, mounting a plastic base ring on such core, and molding a relatively thick elastomer shell around the prepared core and the base ring so that the harden... | 10/11/1994 |
| 4893814 | Plastic candlepin construction A candlepin has a central section that contains a dense weight material and has a thinned portion adjacent each of its bases substantially at the strike zone thereof to give the pin a more lively action.... | 01/16/1990 |
| 4848745 | Fiber reinforced article A filament winding process is disclosed for producing articles having a layer of wound helically extending fibers sandwiched between generally longitudinal fibers. The process is well adapted for use with thermoplastic resins and for producing articles ha... | 07/18/1989 |
| 4793614 | Plastic bowling pin A bowling pin defined primarily by a main one-piece plastic body part which defines the outside configuration of the pin and has a substantially planar base surface on the lower end thereof. A bore arrangement extends coaxially upwardly within the interio... | 12/27/1988 |
| 4457511 | Plastic bowling pin and method of making the same An injection molded bowling pin with a core of thermoplastic plus a blowing agent and a solid skin of thermoplastic per se injected into the mold at one and the same time. The bowling pin is molded by a process wherein a foam material for forming the core... | 07/03/1984 |
| 4351786 | Method for making a stress-relieved composite foamed resin baseball bat or bowling pin Composite bowling pins and baseball bats are formed with foamed, cured-in place plastic bodies securely adhered to a central aluminum core by a somewhat thermoplastic adhesive coating. The exothermic reaction attendant to curing the plastic so softens the... | 09/28/1982 |
| 4351530 | Plastic bowling pin This specification discloses a bowling pin fabricated in three sections from plastic material having two different physical characteristics; the hollow top and bottom sections having approximately the same high density, same coefficient of restitution and... | 09/28/1982 |
| 4210992 | Method of making a molded plastic bowling pin A molded plastic bowling pin incorporating a core extending the length of the pin substantially from its base to its head and constituted of a plurality of plastic core elements of varying sizes and shapes such that the composite pin incorporating the sam... | 07/08/1980 |
| 4123057 | Molded plastic bowling pin and method for the manufacture thereof A molded plastic bowling pin incorporating a core extending the length of the pin substantially from its base to its head and constituted of a plurality of plastic core elements of varying sizes and shapes such that the composite pin incorporating the sam... | 10/31/1978 |
| 3984104 | Plastic bowling pin This specification discloses a bowling pin fabricated from plastic material and which incorporates the physical characteristics of a bowling pin fabricated from wood, such as weight, outside dimensions, balance around a vertical axis, base attachment, cen... | 10/05/1976 |
| 3971837 | Process for manufacturing a composite foamed synthetic resin bowling pin A composite foamed synthetic resin bowling pin is formed by first placing a base support element composed of a disc element and having a central sleeve with a hollow reinforcing tube secured thereto and an annular collar with an outwardly extending transv... | 07/27/1976 |
