Inpro Corporation

Roger W Lehrkamp

Matthew G Bennett

This disclosure is concerned with a readily changeable sign display system which facilitates easy alteration of the sign indicia displayed but is also resistant to unauthorized tampering so that it can be deployed where it is not under continuous surveillance when exposed to the general public. It comprises vertical frame members which provide tracks for the insertion of horizontal frame members. In some embodiments the vertical frame members are joined to each other with a backing member while in other embodiments intermediate channel members are placed between the vertical frame members and adjacent members are joined by a backing member. The horizontal frame members carry grooves for the insertion of sign panels which carry indicia. The tracks for the horizontal frame members carry removable obstructions which hold these members in the tracks. The obstructions at the upper end of the tracks are readily removable.

Sign display system which accommodates interchangeable panels in a tamper resistant manner

The present application discloses means for vertically mounting curtains for easy traverse utilizing an easily mountable bendable track for providing an adjustable path for traverse and flexible carriers which are readily affixable to the bendable track at any point in its length and traverse the bendable track under the load of a supported curtain with a minimum of noise. It discloses a bendable track with both a top and a bottom rib, each of which has a horizontal ledge and a curved profile extending from each ledge away from the main body of the rail and a roller free carrier which can be elastically expanded to snap over the lower horizontal ledge of the track. It further discloses that the surface of the horizontal ledge as well as the ends of the carrier are made of materials having a low coefficient of sliding friction such as exhibited by ABS, nylon, PVC and polyacetal and that the ends of the carrier have a surface with an arcuate surface which is adapted to ride on the lower horizontal ledge.

Bendable track and flexible carrier for curtains

The present disclosure is concerned with an improved latching mechanism for the hinged section of a ceiling track for traveling curtain. The latching mechanism is designed to make a readily audible sound when it is locked. It is based upon a generally oval shaped lock knob which passes through a generally oval shaped aperture in the bottom wall of a receiver for the lock knob. The aperture is designed so that when the lock knob is rotated its long axis no longer aligns with the long axis of the aperture it can no longer pass through the aperture. The bottom wall of the receiver carries two upwardly extending side walls that must be pushed outward to allow the passage of the lock knob as it rotates and that carry gaps that accommodate the tips of the lock knob and allow the side walls to move back toward their undeformed position.

Safety loading unit for ceiling track with easy to use latching

A wall guard for use around wall corners is disclosed in which the wall guard includes a pair of retainers are flexibly mounted to one another. The retainers are coupled to one another by way of an adhesive tape material that extends over the back sides of the retainers. A cover is secured to the pair of retainers for absorbing impacts from passing traffic to thereby protect the corner of the wall against wear and tear.

Growing community of inventors

Milwaukee, WI, United States of America

Roger W Lehrkamp