Amtab Manufacturing Corporation

Other

Gregory Hanusiak

Doss Samikkannu

Jeremias C Rivera, Jr

Zelio Ferrarini

The present invention provides a mobile folding choral riser having lift-assist and stability mechanisms. In particular, the choral riser includes a gas cylinder that provides a force tending to extend the cylinder to assist in folding the riser into a storage position, the cylinder providing substantially no force to resist rapid extension thereof. In addition, the choral riser preferably includes a back railing linkage that permits independent raising and lowering of a back railing member when the choral riser is in a use or partially folded position but constrains the back railing member to a raised position when the choral riser is in an at least substantially fully folded position.

Mobile folding choral riser with high-speed cylinder lift-assist mechanism and partially independent back railing linkage

The present invention provides a mobile folding table with attached seating having an improved lift-assist mechanism. In particular, the table includes a gas cylinder that provides a force tending to extend the cylinder to assist in folding the table into a storage position, the cylinder providing substantially no force to resist rapid extension thereof. Preferably, a mobile folding table according to the present invention also includes a stabilizing mechanism including center bench legs attached to a center leg structure that is maintained substantially upright whether the table is in an unfolded use configuration, in a mobile folded storage configuration, or in the process of being folded or unfolded. In this manner, the attached benches are prevented from freely tipping when the table is being folded or moved.

Mobile folding table with high-speed cylinder lift-assist and stabilizer mechanisms

Mobile folding table with high-speed cylinder lift-assist and stabilizer mechanism

Mobile convertible bench

In one aspect, an improved locking mechanism for a mobile folding table is provided, permitting convenient access near the top of the folded table to a manual actuator for unlocking the table from a folded configuration. In another aspect, an improved lift-assisting mechanism for a mobile folding table is provided, with a clutch that engages the lift-assisting mechanism only when the table top halves are at an angle from the vertical that is equal to or larger than a predetermined angle. These two aspects may be advantageously and synergistically combined in the same mobile folding table.

Mobile folding table with improved locking and lift-assisting mechanisms

Choral riser

Table

An improved seating apparatus is provided, including a seat supported by a fixed seat post, the seat post mating with a support mount fixed to the bottom of the seat. The aligned surfaces of the seat post and support mount are of a non-circular cylindrical shape to prevent rotation of the support mount with respect to the seat post.

Growing community of inventors

Chicago, IL, United States of America

Gregory Hanusiak