US 9,808,056 B1
Self stopping bead with outer shell and inner resilient tube
Steven A. Cipolla, Warwick, RI (US)
Assigned to National Chain Company, Warick, RI (US)
Filed by Steven A. Cipolla, Warwick, RI (US)
Filed on Mar. 1, 2016, as Appl. No. 15/57,693.
Application 15/057,693 is a division of application No. 14/529,977, filed on Oct. 31, 2014, granted, now 9,451,813.
Claims priority of provisional application 62/007,507, filed on Jun. 4, 2014.
Int. Cl. A44C 25/00 (2006.01); A44C 27/00 (2006.01); A44C 11/00 (2006.01)
CPC A44C 25/00 (2013.01) [A44C 11/002 (2013.01); A44C 27/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A bead construction comprising:
a shell in the form of a round or oval shape having bead holes at respective opposed sides of the shell and having respective inner and outer diameters;
a resilient hollow tube that is disposed within the shell, that extends between the respective opposed sides of the shell and that has respective inner and outer diameters;
said resilient hollow tube having opposed ends and a length that is substantially the same as the distance between the respective bead holes so that the opposed ends of the resilient hollow tube are disposed within the respective bead holes;
wherein the shell has a uniform wall thickness between the bead holes;
wherein a hollow space is formed between the inner diameter of the shell and the outer diameter of the resilient hollow tube;
wherein each bead hole has a defined bead hole thickness as measured between the respective inner and outer diameters of the shell at each bead hole to thus define inside and outside bead hole diameters;
wherein the opposed ends of the resilient hollow tube extend into and across the complete bead hole thickness;
wherein the opposed ends of the resilient hollow tube each have a planar end face surface;
wherein, at each of the opposed ends of the resilient hollow tube, the planar end face surface of the resilient hollow tube terminates at the outside diameter of the respective bead holes;
wherein at each of the opposed ends of the resilient hollow tube, the planar end face surface of the resilient hollow tube extends in a common plane that is orthogonal to a longitudinal axis of the resilient hollow tube;
wherein the resilient hollow tube has both a larger outer diameter and a larger inner diameter at a location half way between the end bead holes than at either of the bead holes;
wherein the resilient hollow tube forms the larger outer diameter and larger inner diameter by being formed in a single expanded diameter center section that is disposed between the opposed end bead holes;
wherein the shell is constructed of metal, an alloy or other deformable material suitable for making jewelry including one of gold, silver, platinum, stainless steel, and brass, and said resilient hollow tube is constructed of polyurethane; and
wherein the polyurethane resilient hollow tube has a shore A hardness range of 60A to 95A.