# US 2004/0185229 A1 · Cellular structure with internal limiting member and method for making cellular structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2004/0185229 A1 - Document ID: US20040185229A1 - Status: Published application - Kind: A1 - Application number: 10/767,447 - Filed: 2004-01-29 - Published: 2004-09-23 - Earliest claimed: 2002-10-11 - Inventors: Fu-Lai Yu - Web page: https://patentgrep.com/patent/US20040185229A1 ## CPC - B31D 3/0215: {for window coverings} - E06B 9/262: with flexibly-interconnected horizontal or vertical strips; Concertina blinds {, i.e. upwardly folding flexible screens} - E06B 9/386: Details of lamellae - E06B 2009/2627: {Cellular screens, e.g. box or honeycomb-like} - Y10T 428/24149: Honeycomb-like - Y10T 428/24165: Hexagonally shaped cavities - Y10T 428/24661: Forming, or cooperating to form cells - Y10T 428/24744: Longitudinal or transverse tubular cavity or cell - B31D: MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C (manufacture by dry processes of articles made from particles or fibres consisting of wood or other lignocellulosic or like organic material B27N; making layered products not composed wholly of paper or cardboard B32B; making articles from cellulosic fibrous suspensions, e.g. wood pulp, D21J) - E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention relates to a cellular structure for use in honeycomb window shades having plurality of rows forming a single column of double cells, which forms a uniformly pleated appearance for the face and rear of the cellular structure. Each of the plurality of rows of double cells is constructed of a longitudinal strip of material having a greater width portion and a limiting member portion. The limiting member portion serves to restrict the extent to which any row may be stretched. The present invention further relates to a method for making the cellular structure. ## Claims ### Claim 1 A cellular structure for use in a honeycomb window shade having a face and a rear, the cellular structure comprising: a single column of a plurality of longitudinally extending rows of double cells including a front cell and a back cell, each of the rows comprising a strip of material having a first surface and a second surface, the strip of material comprising a greater width portion and a limiting member portion, the limiting member portion is secured to the greater width portion at a first end of the limiting member portion on the first surface of the strip, the limiting member portion forming part of the front cell and the back cell, the greater width portion also forming part of the front cell and back cell; and a first row of the plurality of rows is secured to a second row of the plurality of rows along at least one longitudinally extending line provided substantially at a second end of the limiting member portion. ### Claim 2 (depends on 1) The cellular structure of claim 1, wherein each of the rows is comprised of a single strip of material. ### Claim 3 (depends on 1) The cellular structure of claim 1, wherein each of the rows is comprised of a plurality of strips of material. ### Claim 4 (depends on 1) The cellular structure of claim 1, wherein the first row of the plurality of row is secured to the second row of the plurality of rows with a first and a second glue line, the first glue line at an end of the greater width portion, and the second glue line formed on the at least one longitudinally extending line. ### Claim 5 (depends on 1) The cellular structure of claim 1, wherein the greater width portion of each row comprises at least a first crease defining a first pleat for the front cell and a second crease defining a second pleat for the back cell. ### Claim 6 (depends on 1) The cellular structure of claim 1, wherein each of the front cell and back cell for each row are longitudinally parallel and laterally even. ### Claim 7 (depends on 1) The cellular structure of claim 1, wherein the limiting member portion of the strip of material is of a width less than one-half a width of the greater width portion. ### Claim 8 (depends on 7) The cellular structure of claim 7, wherein the limiting member portion of the strip of material is of a width between one-quarter and one-third the width of the greater width portion. ### Claim 9 (depends on 1) The cellular structure of claim 1, wherein the front cell is larger than the back cell. ### Claim 10 A cellular structure for use in a honeycomb window shade, the cellular structure comprising: a single column of a plurality of longitudinally extending rows of double cells, the plurality of rows comprising at least a first row and a second row, the first row including a front cell and a back cell and further comprising: a strip of material having a first surface and a second surface, the strip of material comprising a first greater width portion and a first limiting member portion, a first longitudinal glue line on the first surface of the strip at a first end of the first limiting member portion, the first glue line securing the first end of the first limiting member portion to the first surface of the strip on the first greater width portion, the front cell formed by the first limiting member portion and a first section of the first greater width, the back cell formed by the first limiting member portion and a second section of the first greater width, a second longitudinal glue line on the second surface of the strip at a second end of the first limiting member portion, the second glue line securing the second surface of the strip to the second row, a third longitudinal glue line on the second surface of the strip at a first end of the first greater width portion, the third glue line further securing the strip to the second row; the second row constructed as the first row; and the first row secured to the second row with the second glue line and third glue line at the second surface of the strip of the second row on the second greater width portion. ### Claim 11 (depends on 10) The cellular structure of claim 10, wherein each of the rows is comprised of a single strip of material. ### Claim 12 (depends on 10) The cellular structure of claim 10, wherein each of the rows is comprised of a plurality of strips of material. ### Claim 13 (depends on 10) The cellular structure of claim 10, wherein the first greater width portion of the first row further comprises a pleat for the front cell, and a pleat for the back cell. ### Claim 14 (depends on 10) The cellular structure of claim 10, wherein each of the front cell and back cell for each row of double cells are longitudinally parallel and laterally even. ### Claim 15 (depends on 10) The cellular structure of claim 10, wherein the first limiting member portion of the strip of material is of a width less than one-half a width of the first greater width portion. ### Claim 16 (depends on 15) The cellular structure of claim 15, wherein the limiting member portion of the strip of material is of a width between one-quarter and one-third the width of the greater width portion. ### Claim 17 (depends on 10) The cellular structure of claim 10, the front cell is larger than the back cell. ### Claim 18 (depends on 17) The cellular structure of claim 17, wherein a face of the cellular structure is comprised of the plurality of rows which are stacked such that the front cells and back cells alternate. ### Claim 19 A method for making a cellular structure comprising a plurality of rows for use in a honeycomb window shade, each row constructed of a strip of material, the method comprising the steps of: forming a first row from a first strip of material by securing a first end of a limiting member portion of the first strip to a greater width portion of the first strip; forming a second row from a second strip of material by securing a first end of a second limiting member portion of the strip to a greater width portion of the second strip; stacking the first row with the second row; and securing the first row to the second row by securing a second end of the limiting member portion of the first row to the greater width portion of the second strip. ### Claim 20 (depends on 19) The cellular structure of claim 19, wherein each of the rows is comprised of a single strip of material. ### Claim 21 (depends on 19) The cellular structure of claim 19, wherein each of the rows is comprised of a plurality of strips of material. ### Claim 22 (depends on 20) The method of claim 20, wherein securing the first row to the second row further comprises securing an end of the greater width portion of the first row to the greater width portion of the second row. ### Claim 23 (depends on 20) The method of claim 20, wherein a first crease and a second crease are formed in the greater width portion of the first row; ### Claim 24 (depends on 20) The method of claim 20, wherein a third crease is formed between the limiting member portion of the first row and the greater width portion of the first row. ### Claim 25 (depends on 20) The method of claim 20, wherein a fourth crease is formed on the limiting member portion of the first row. ### Claim 26 (depends on 20) The method of claim 20, wherein the first end of the limiting portion of the first row is secured on a first surface of the first strip to the greater width portion of the first strip on the first surface of the first strip.