Deformable sleeve with resilient core structure

A deformable sleeve with a resilient core structure, which is characterized by:

• a side of the sleeve, a top of the sleeve and a bottom of the sleeve;
• the resilient core device with a tubular structure of one or more solid parts is set within the inner boundary of the deformable sleeve;
• a surface structure of gaps, notches, voids or cavities within an inner boundary of the deformable sleeve in between the tubular structure of one or more solid parts of the resilient core device, and the surface structure limits the reduction in distance between the top and bottom of the deformable sleeve caused by actuation, the surface structure partially limits a width of the deformable sleeve from an inside of the deformable sleeve to the side of the deformable sleeve when the deformable sleeve is in its undeformed position, and partially limits a narrowest width size of the deformable sleeve from the inside of the deformable sleeve to the side of the deformable sleeve when a deformable sleeve is in the deformed position;
• the side of the sleeve has a predetermined shape that is adjusted by the gaps, notches, and voids or cavities of the surface structure when pressure is applied along the direction of the top of the sleeve, and the pressure required for deformation is derived from force exerted by a hand or other mechanism;
• an outer wall of the resilient core device is partially connected, or secured to the deformable sleeve at one or more ends of the deformable sleeve;
• and
• the resilient core device forms an air-tight combination with the deformable sleeve;
• and
• wherein the resilient core device includes a latch, a latch release button, a spring and a lever.