Patent ID: 7797799
Filing Date: 2010-09-21
Classification: A44B,B60R,Y10T

Abstract:
1. A directional retention device comprising: a generally cylindrical button with a peripheral slot; a ring defining an aperture sized to fit around the button with the ring in the peripheral slot; wherein the button and ring are configured such that the ring is secured to the button when a predetermined force is applied to the ring in a first direction but is released from the button when the predetermined force is applied to the ring in a second direction opposing the first direction; wherein the slot is not symmetrical about a center axis of the button and has a deep portion and a shallow portion; wherein the slot has an axially extending recess; wherein the ring tapers from a thickened portion to a thinned portion and has an extension protruding axially from the thickened portion; and wherein the extension is configured to fit within the recess when the ring is in the slot, with the thickened portion in the deep portion and the thinned portion in the shallow portion, such that the ring is further secured to the button when force is applied in the first direction to push the extension further into the recess.