Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Hoffend, Jr.

Donald A. Hoffend, Jr., Pittsford, NY US

Patent application numberDescriptionPublished
20090146120MODULAR LIFT ASSEMBLY HAVING TELESCOPING MEMBER - A modular lift assembly configured for attachment between two substantially parallel support beams includes a chassis, at least one lift component attached to the chassis, a telescoping or other adjustable stiffener, and at least one attachment assembly. The chassis has a plurality of grooves formed in one surface thereof. The telescoping or other adjustable stiffener is disposed in at least one of the grooves and engages facing surfaces of adjacent parallel support beams. The attachment assembly is disposed in another of the grooves formed in the chassis for engaging at least one of the adjacent support beams.06-11-2009
20110001101MODULAR LIFT ASSEMBLY - A modular lift assembly includes a frame, at least one head block connected to the frame, a drum rotatably connected to the frame about an axis of rotation and having at least one winding section, and a drive mechanism operatively connected to the drum for rotating the drum. In various examples, the lift assembly includes at least one loft block internal or external relative to the frame. The loft block is configured to guide a cable from the at least one head block to a load. The lift assembly can further include a load brake positioned along the axis of drum rotation to reduce risks associated with a drive or motor failure.01-06-2011

Donald A. Hoffend, Jr. US

Patent application numberDescriptionPublished
20090045381MODULAR LIFT ASSEMBLY - A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to one or more portions of the frame. A plurality of head blocks can be connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up can maintain a predetermined fleet angle between a take off point from the drum and the head block.02-19-2009

Thomas R. Hoffend, Jr., Woodbury, MN US

Patent application numberDescriptionPublished
20100128351CURVED SIDED CONE STRUCTURES FOR CONTROLLING GAIN AND VIEWING ANGLE IN AN OPTICAL FILM - A method of making an optical film includes the steps of making a substrate having a first major surface and a second major surface opposite the first surface and forming a plurality of curved sided cone structures on the first surface. Each of the curved sided cone structures include a base located on the first surface, a vertex, and a curved side formed from an arc extending between the base and the vertex. The optical gain and viewing angle for the film can be controlled by adjusting angles representing a shape of each curved sided cone structure at its vertex and base.05-27-2010
20100165621COLLIMATING LIGHT INJECTORS FOR EDGE-LIT BACKLIGHTS - Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (07-01-2010