sitting in one of these chairs. The Presidential Seal was embossed on these chairs with one currently in the Smithsonian Institution and another at the Lyndon Baines Johnson Library and Museum. With over 300 patents, Caldemeyer added the foot lift rest, heated seating and massage features to this chair and had the patent for the first entertainment center. Variants Recliners with casters Traditional home recliners are generally intended to be large immobile objects that never move and must be dragged or carried to be moved. Now home furniture manufacturers produce a thick padded leather or overstuffed fabric recliner with casters. Recliners with casters are also designed for a medical setting such as for use in a nursing home or hospital. Medical recliners often have accessory hooks and an optional removable arm and tray table. Wall hugger recliners Used for apartments, the wall hugger recliner is used to save space. A wall hugger recliner may be positioned with a few centimeters of clearance between itself and the wall and only reclines forward. This is achieved by utilizing a gliding mechanism underneath the seat that pushes the bottom half of the chair forward so the back of the recliner never gets any closer to the wall thus ensuring efficient usage of space. Riser armchairs A riser armchair or lift chair includes a standing-up system, for elderly and people with limited mobility. See also Ergonomy Massage chair Sunlounger References Products introduced in 1928 Accessibility Ergonomics