Abstract: Systems and methods for the growing of microorganisms such as algae, yeast, and bacteria are described. Seed fermentation units are associated with final fermentation ponds in various arrangements. Continuous, semicontinuous, fed batch, and batch modes of operation of the seed and final fermentations are included. Harvest methods for the cellular material and related products are described.

Abstract: A chair frame (10) for a stackable chair. The chair frame (10) includes a seat support portion (12) for support the seat portion (18) of a chair, and includes a pair of leg assemblies (22, 24) oppositely disposed on either side of the seat support portion (12). Each leg assembly (22, 24) includes a front leg (26) and a rear leg (28), and an upper support member (30). Each upper support member (30) has an upper surface (38), at least a portion of which defines a curvilinear surface portion. Each leg assembly (22, 24) also includes a stacking bar (32) extending between the front leg (26) and the rear leg (28), the stacking bar (32) being disposed below, and being selectively space from, the upper support member (30).

Abstract: A molded foam spring seat includes a seat cushion having a bottom surface supported by a support frame having an opening therein. A drop-in frame is insertable within the opening, with the drop-in frame including a pair of opposed walls having fastening means thereon. A plurality of compression springs are each detachably extended between the fastening means on the drop-in frame. Each compression spring is in partial compression until compressed downward by a user seated on the seat cushion. Each compression spring resiliently rebounds to partial compression when the seat cushion is not compressed. The seat cushion includes sides tapered inwardly toward a seat cushion upper surface to reduce bulging of each side outwards with repetitive use of the seat cushion, and to minimize wear on the seat cushion sides when other seat cushions and support frames are positioned adjacent, or are stacked on the seat cushion.

Abstract: A stackable chair is provided which is configured to alter the forward shift of the center of gravity of a stack of the chairs such that a larger number of such chairs can be stacked in a stable stack as compared to a stack of prior art chairs. The stackable chair includes a seat member, a seat back extending from the seat member, a plurality of legs secured to the seat member and a seat pan secured to the bottom of the seat member. The seat member defines a wedge shape and the seat pan is disposed at angle with respect to the seat member. The seat member and the seat pan cooperate to alter the forward shift of the center of gravity to an arcuate path when the chairs are placed in a stack. Further, the seat pan is configured to protect the seat cushion upon which it rests against indentations.

Abstract: A stackable chair (10) and an associated stacking support assembly. The chair (10) includes a frame (22) defining at least first and second front leg members (14, 16) and first and second rear leg members (18, 20), with a seat portion (12) being supported on the frame (22). The chair (10) includes a stacking support assembly for facilitating the stacking of the chair (10) upon another chair (10). The stacking support assembly includes first and second lower support bars (26, 28) mounted on opposite sides of the frame (22) below the seat portion (12), and includes first and second upper support bars (30, 32) mounted on opposite sides of the frame (22) below the seat portion (12) and above, and selectively spaced from, the first and second lower support bars (26, 28), respectively.

Abstract: A chair frame and associated chair framing material. The chair frame (10) includes an upper frame portion (12) for supporting a seat (14) and a plurality of leg members (22, 24). The chair frame (10) is fabricated of elongated bar material (26) defining a substantially rectangular cross-section with corners which define expanded areas such that reenforcing ribs (28) are provided along the length of the elongated bar material (26).

Abstract: A device for selectively anchoring a seat assembly, such as a stool or chair, relative to a fixed station, such as a gaming machine or service station. The anchoring device includes a sled or support base for the seat assembly and a quick release anchoring system or connector assembly for releasably locking the sled or support base in a desired position relative to the fixed station and limiting lateral sliding movement of the sled in its locked position. The anchoring system is operable using a very small degree of vertical lifting of the seat assembly and sled base and which is locked automatically in the mating bracket against lateral displacement from the bracket after installation of the seat assembly in the mating bracket.

Abstract: A stacking interface device (10) for altering the stacked disposition of a chair (12) to facilitate the stable stacking of such chair on other chairs. The stacking interface device (10) includes an interface body (14) for being secured beneath the seat bottom (16) of a chair (12), the interface body (14) having a forward portion (18) and a rearward portion (20). The interface body (14) also defines a lower surface (22) for supporting the chair upon the seat cushion (24) of a second chair (12). The lower surface (22) of the interface body (14) is disposed at an angle relative to the lower surface (26) of the seat bottom (16) of the chair to which the device (10) is attached such that the distance between the lower surface (22) of the interface body (14) and the lower surface (26) of the seat bottom of the chair decreases from the forward portion (18) of the interface body to the rearward portion (20) of the interface body (14).