Abstract: A method of manufacturing a filter that includes providing a tube having a cylindrical wall and a hollow interior. The method forms a first indentation within the tube in which a first portion of the of the cylindrical wall concaves into the hollow interior, and forms a second indentation within the tube in which a second portion of the cylindrical wall concaves into the hollow interior. The first and second indentations create 1) a first chamber and a second chamber in the tube that are separated by both indentations and 2) a path within the hollow interior formed between the first and second indentations that fluidly couples both chambers together.

Abstract: A tapered tip for being attached to a wrapper containing a smokeable substance. The tip is formed by a tube having a conical frustrum shape having two ends forming first and second openings at opposite ends of the tube. The openings are fluidly connected to each other by a chamber disposed between the two ends. The chamber and the two are axially aligned. The tip is formed by rotating a tube while applying heat to a section. The heated section is squeezed and a pivoting rod is inserted. The rollers and rod are removed and heat is applied. The heated portion is squeezed a second time and the rod is reinserted. The rollers and rod are removed and heat is applied. The heated portion is again squeezed and the pivoting rod is again reinserted. The rollers and rod are removed and heat is applied to the end of the tube.

Abstract: A method of manufacturing a tip for use with smokeable substances. A tube is rotated while applying heat to a section. The heated section is squeezed with tapered rollers and a pivoting rod is inserted. The rollers and rod are removed and heat is again applied. The heated portion is squeezed a second time with the tapered rollers and the rod is reinserted. The rollers and rod are removed and heat is again applied. The heated portion is again squeezed with the tapered rollers and the pivoting rod is again reinserted. The rollers and rod are removed and heat is applied to the end of the tube. The tube is scored above the end to form a scored line. Heat is applied to the scored line. Water is sprayed onto the scored line to split the tube into two pieces. Heat is applied to the tube at the split end.

Abstract: A method of manufacturing a tip for use with smokable substances. A tube is rotated while applying heat to a section of the tube (step 1). The tube is pulled apart to separate the tube into two sections, each section having a closed end (step 2). Heat is applied to the closed end of one section in a direction to cause it to open (step 3), and then heat is applied in a second direction to the end (step 4). A plug is inserted into the end and a roller is used to form an opening with a flat external surface (step 5). Heat is applied, and the ends are pulled apart to separate the section into two parts (step 7). While continuing to apply heat, air is injected into the opened end to form a tip having openings at its two ends connected by an open chamber (step 8).

Abstract: A method of manufacturing a tip for use with smokable substances. A tube is rotated while applying heat in a horizontal and vertical direction to an end of the tube. The heated end is squeezed with rollers and while a rotating t-shaped plug is inserted into the heated end of the tube. The rollers and t-shaped plug are removed and a scoring wheel is applied to the tube to create a scratch. Then heat is applied to the scratch. An end of the tube is clamped with a rotating chuck and water is sprayed at the scratch to create a thermal shock which separates the tube into two pieces. Heat is applied to a section of one end of the pieces. Tapered rollers are applied to the heated section to taper a diameter of the piece along the heated section.

Abstract: A method of manufacturing a tip for use with smokeable substances. A tube is rotated while applying heat to a section. The heated section is squeezed with tapered rollers and a pivoting rod is inserted. The rollers and rod are removed and heat is again applied. The heated portion is squeezed a second time with the tapered rollers and the rod is reinserted. The rollers and rod are removed and heat is again applied. The heated portion is again squeezed with the tapered rollers and the pivoting rod is again reinserted. The rollers and rod are removed and heat is applied to the end of the tube. The tube is scored above the end to form a scored line. Heat is applied to the scored line. Water is sprayed onto the scored line to split the tube into two pieces. Heat is applied to the tube at the split end.