Abstract: An improved force module is used in orthodontic applications for treating patients with overbite or other dental problems. The improved force module may act as a force limiter to limit movement of a pushrod attached to either an archwire or bow and thereby limit a force generated by a spring attached to the pushrod. The improved force module is designed for use in an orthodontic system which self-adjusts, thus eliminating the need for routine adjustment. Also, the improved force module maintains its shape and strength for several months, may be made from a shape memory polymer, and may contain an embedded reinforcing wire or fiber.

Abstract: This invention relates to supports for cameras and the like on tripods. Such supports normally provide for tilting and panning of the camera. The invention is concerned with the smooth operation of the support bearings and includes means for maintaining between two relatively rotating surfaces a thin film of a suitable liquid. Further, the support bearings include a hydrostatic control means which allows for adjustment of the bearing friction drag.

Abstract: This invention relates to supports for cameras and the like on tripods. Such supports normally provide for tilting and panning of the camera. The invention is concerned with the smooth operation of the support bearings and includes means for maintaining between two relatively rotating surfaces a thin film of a suitable liquid and means for adjusting the thickness of the liquid film between the rotating surfaces.

Abstract: The present invention relates to slipping pan clutches for cameras and the like, the clutch allowing slipping disengagement of the camera or the like from damped panning operation on a sudden or quick panning movement.