# US 2023/0263273 A1 · Metal one piece slide and pull for slide fastener > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0263273 A1 - Document ID: US20230263273A1 - Status: Published application - Kind: A1 - Application number: 18/309,797 - Filed: 2023-04-29 - Published: 2023-08-24 - Earliest claimed: 2016-04-01 - Assignees: Shah Technologies, LLC - Applicants: Shah Technologies LLC - Inventors: Nirav Ashok Shah - Web page: https://patentgrep.com/patent/US20230263273A1 ## CPC - A44B 19/262: {Pull members; Ornamental attachments for sliders} - A44B 19/30: with means for locking in position - A44B 19/26: Sliders - A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C) ## Abstract The invention involves a slide assembly for a zipper, and a method for manufacturing a zipper slide assembly. The slider assembly is formed in a single die cast operation to include the slider and the pull member being formed simultaneously. At least one side shifting slide is incorporated into the die, which allows the bridge and pull loop to be formed with their full geometric shape and without the converging flat surfaces required in the prior art. ## Claims ### Claim 1 A double chain slider assembly (80) for a zipper comprising: a metal slide member (12), said slide member (12) includes an upper guide (72), and a middle guide (76) separated and secured together with a first splitter (34) for guiding a first zipper chain, said slide member (12) further including a second splitter (35) separating and securing a lower guide (74) to the middle guide (76) for guiding a second zipper chain, said slide member (12) including a top surface (24), said top surface (24) including a bridge (16) formed as a continuous unbroken member having a first end (18) and a second end (20) integrally formed to the top surface (24), an inner surface (26) of the bridge (16) defining an opening between the bridge (16) and the top surface (24); a pull member (14) having a loop portion (38) and a first tab portion (40), said loop portion (38) formed as a continuous unbroken loop around the bridge (16) and integrally formed to the first tab portion (40); wherein the upper guide (72), the first splitter (34) and the middle guide (76) are constructed and arranged to interlock a first zipper chain when moved in a first direction, and disengage the first zipper chain when moved in a second direction, and wherein the middle guide (76), the second splitter (35) and the lower guide (74) are constructed and arranged to interlock a second zipper chain when moved in the first direction and disengage the second zipper chain when moved in the second direction. ### Claim 2 (depends on 1) The double chain slider assembly (80) for a zipper of claim 1 wherein the slider includes guide walls (36) integrally formed as part of the slider member (12) to guide the teeth of the zipper chain as they pass through the upper guide (72), the middle guide (76) and the lower guide (74). ### Claim 3 (depends on 1) The double chain slider assembly (80) for a zipper of claim 1 wherein the first tab portion (40) of the pull member (14) includes an aperture extending through the tab portion (40), the aperture positioned at an opposite end of the tab portion (40) with respect to the loop portion (38). ### Claim 4 (depends on 1) The double chain slider assembly (80) for a zipper of claim 1 wherein the first tab portion (40) of the pull member (14) includes a transverse aperture extending through the tab portion (40), the aperture positioned at an opposite end of the tab portion (40) with respect to the loop portion. ### Claim 5 (depends on 1) The double chain slider assembly (80) for a zipper of claim 1 wherein the first tab portion (40) of the pull member (14) includes an aperture extending through the tab portion (40), the aperture positioned at a center portion of the first tab portion (40) with respect to the pull member(14). ### Claim 6 (depends on 1) The double chain slider assembly (80) for a zipper of claim 1 wherein an inner surface (26) of said bridge (16) formed to be substantially flat as it extends transversely across said inner surface (26). ### Claim 7 (depends on 1) The slide assembly for a zipper of claim 1 wherein said loop portion (38) of said pull member (14) is substantially round. ### Claim 8 (depends on 1) The slide assembly for a zipper of claim 1 wherein said loop portion (38) of said pull member (14) is substantially square. ### Claim 9 (depends on 1) The slide assembly for a zipper of claim 1 wherein said loop portion (38) of said pull member (14) is polygon shaped. ### Claim 10 (depends on 1) The slide assembly of claim 1 wherein said pull member (14) includes indicia (78) formed integrally thereon. ### Claim 11 (depends on 1) The slide assembly of claim 1 wherein said slide member (12) includes indicia (78) formed integrally thereon, said indicia (78) formed during said die casting process. ### Claim 12 (depends on 1) The slide assembly of claim 1 wherein said slide assembly (10) is die cast. ### Claim 13 (depends on 10) The slide assembly of claim 10 wherein said metal is selected from the group consisting of zinc, aluminum, magnesium, titanium, copper, brass and combinations thereof.