# US 8,770,509 B2 · Bobbin for roll stock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,509 B2 - Document ID: US8770509B2 - Status: Granted - Kind: B2 - Application number: 13/021,322 - Filed: 2011-02-04 - Published: 2012-08-09 - Granted: 2014-07-08 - Earliest claimed: 2011-02-04 - Assignees: Tama Plastic Industry - Applicants: Gil Tzur; Ran Cohen - Inventors: Gil Tzur; Ran Cohen - Web page: https://patentgrep.com/patent/US8770509B2 ## CPC - B65H 75/187: {Reinforcing end caps} - B65H 75/143: {at least one end flange being shaped to cover the windings} - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract In one embodiment of the present invention, a device for supporting and storing wound material thereon may include a substantially cylindrical, hollow bobbin having a thickness defined by an inner and outer diameter for supporting and storing material wound around the exterior surface thereof, and a reinforcing apparatus located at one end of the bobbin, the apparatus having generally a cylindrical shape and a length comprising two zones, the outside surface of the first zone being in contact with a portion of an inner surface of the bobbin, and the second zone of the apparatus extending beyond the end of the bobbin. ## Claims ### Claim 1 A device for supporting and storing wound material thereon, comprising: a substantially cylindrical, hollow bobbin having a thickness defined by an inner and outer diameter for supporting and storing the material wound around an exterior surface of the bobbin, and a reinforcing apparatus located at one end of the bobbin, said apparatus having generally a cylindrical shape and a length comprising first and second zones, an outer surface of the first zone being in contact with a portion of an inner surface of the bobbin, and the second zone of the apparatus positioned entirely beyond an end of the bobbin, the first and second zones secured to one another through a releasable connection, wherein the first zone has an outer diameter such that the first zone fits within the inner surface of the bobbin and wherein the second zone has an outer diameter larger than the inner diameter of the bobbin, whereby the reinforcing apparatus provides strength and support to the bobbin. ### Claim 2 (depends on 1) The device of claim 1, wherein the bobbin and reinforcing apparatus are in a torque-transfer relationship. ### Claim 3 (depends on 1) The device of claim 1, further comprising a second reinforcing apparatus located at a second end of the bobbin. ### Claim 4 (depends on 1) The device of claim 1, wherein the reinforcing apparatus is one of fixedly secured or removably connected to the bobbin. ### Claim 5 (depends on 4) The device of claim 4, wherein the reinforcing apparatus is maintained by the friction between contact surfaces of the bobbin and the reinforcing apparatus. ### Claim 6 (depends on 1) The device of claim 1, wherein the outer surface of the first zone of the reinforcing apparatus comprises at least one ridge to create a grip between the inner surface of the bobbin and the reinforcing apparatus. ### Claim 7 (depends on 1) The device of claim 1, wherein the reinforcing apparatus has an open inner space that communicates with a hollow interior of the bobbin and an inner surface of at least one of the first and second zones of the reinforcing apparatus comprises longitudinal slots or grooves. ### Claim 8 (depends on 1) The device of claim 1, wherein the bobbin comprises a degradable material or a reusable material. ### Claim 9 (depends on 1) The device of claim 1, wherein the reinforcing apparatus is water resistant and comprises a different material from that of the bobbin. ### Claim 10 (depends on 1) The device of claim 1 wherein an inner diameter of the reinforcing apparatus is substantially the same throughout its length. ### Claim 11 (depends on 1) The device of claim 1, wherein the wound material applies to the reinforcing apparatus and bobbin a pressure per square foot in the range of about 0 to about 50 bar per square foot. ### Claim 12 (depends on 11) The device of claim 11, wherein the wound material is selected from the group consisting of netting, fabric, plastic film, composite wrapping material, carpeting and a paper product. ### Claim 13 (depends on 11) The device of claim 11, wherein the wound material comprises wrapping material for bales of cotton, hay or straw. ### Claim 14 (depends on 1) The device of claim 1, wherein the first zone includes a length between about 20 mm and about 250 mm, an inner diameter between about 35 mm and about 135 mm, and the outer diameter between about 40 mm and about 140 mm, and the second zone of said reinforcement apparatus has a length between about 5 mm and about 100 mm, an inner diameter between about 40 mm and about 140 mm, and the outer diameter between about 50 mm and about 150 mm. ### Claim 15 (depends on 1) The device of claim 1, wherein the releasable connection is a male-female connection. ### Claim 16 A product for maintaining or storing a wound stock material, comprising: a substantially cylindrical, hollow cardboard bobbin for winding and maintaining the wound stock material thereon; and a first reinforcing apparatus in connection with the bobbin located at an end of the bobbin and characterized by adding rigidity, strength and protection to the bobbin, the first reinforcing apparatus including a first zone, a portion of which is positioned within the bobbin, and a second separate zone, positioned on another portion of the first zone, the first and second zones secured to one another through a releasable connection, wherein the wound stock material is wound on the bobbin and reinforcing apparatus. ### Claim 17 (depends on 16) The product of claim 16, further comprising a second reinforcing apparatus at a second end of the bobbin. ### Claim 18 (depends on 16) The product of claim 16, wherein the wound stock material comprises netting, fabric, plastic film, composite wrapping material or paper products. ### Claim 19 (depends on 16) The product of claim 16, wherein the wound material is for agricultural uses. ### Claim 20 (depends on 16) The device of claim 16, wherein the releasable connection is a male-female connection. ### Claim 21 A device for supporting and storing wound material thereon, comprising: a substantially cylindrical, hollow bobbin having an inner and outer diameter for supporting and storing the wound material around an exterior surface of the bobbin, and a reinforcing apparatus located at one end of the bobbin, said apparatus having generally a cylindrical shape and a length, the reinforcing apparatus comprising a first cylindrical sleeve portion having a flanged end, at least part of which is in contact with an inner surface of the bobbin, and a second, separate cylindrical end portion, at least a part of which is positioned over the first sleeve portion, the first and second portions secured to one another through a releasable connection, wherein the second end portion has an outer diameter larger than the inner diameter of the bobbin, wherein at least a part of the first sleeve portion has a first outer diameter such that the part of the first portion having the first outer diameter fits within the inner diameter of the bobbin, whereby the reinforcing apparatus provides strength and support to the bobbin. ### Claim 22 (depends on 21) The device of claim 21, wherein the flanged end of the first sleeve portion and the second cylindrical end portion are secured together to inhibit movement between the first and second portions. ### Claim 23 (depends on 22) The device of claim 22, wherein the first sleeve portion and second end portion are secured together by a male-female press-fit, wherein one aspect of the male-female press-fit is the flanged end of the cylindrical sleeve portion adapted to receive a portion of the second cylindrical end portion therein. ### Claim 24 (depends on 21) The device of claim 21, wherein the releasable connection is a male-female connection.