Portable greenhouse structure and method and appartus for assembling same

An apparatus for joining a first panel to a second panel along abutting edges thereof, the apparatus comprising:

• a first extrusion attached to the abutting edge of the first panel, wherein the first extrusion comprises a stem which projects away from a plane of the panel and has a panel side and a mating side;
• a second extrusion attached to the abutting edge of the second panel, wherein the second extrusion comprises a stem which projects away from a plane of the panel and has a panel side and a mating side;
• and
• a clamp which holds the stem of the first extrusion and the stem of the second extrusion together such that the mating side of the first extrusion is in contact with the mating side of the second extrusion.

A method for joining a first panel to a second panel along abutting edges thereof, the method comprising:

• attaching a first extrusion to the abutting edge of the first panel, wherein the first extrusion comprises a stem which projects away from a plane of the panel and has a panel side and a mating side;
• attaching a second extrusion to the abutting edge of the second panel, wherein the second extrusion comprises a stem which projects away from a plane of the panel and has a panel side and a mating side;
• abutting the mating sides of the first and second extrusions;
• and
• clamping together the stems of the first extrusion and the second extrusion, such that the mating side of the first extrusion is in contact with the mating side of the second extrusion.

An apparatus for joining a plurality of rounded corners of a plurality of panels, the apparatus comprising:

• an extrusion attached to the rounded corner of each panel, wherein the extrusion comprises a mating side and a stem which projects away from the plane of the panel;
• a base having a front surface, a planar rear surface, and a plurality of curved bearing surfaces extending between the front surface and the rear surface, wherein the bearing surfaces on the base are sized and shaped to mate with the mating sides of the extrusions, and wherein the number of bearing surfaces on the base corresponds to the number of panels to be joined;
• and
• a clip having a plurality of gripping surfaces substantially conforming to the shape of the bearing surfaces on the base, wherein the clip is attachable to the base such that the extrusion stem is sandwiched between the gripping surfaces of the clip and the bearing surfaces of the base.

A process for joining a plurality of rounded corners of a plurality of panels, the process comprising:

• attaching an extrusion attached to the rounded corner of each panel, wherein the extrusion comprises a mating side and a stem which projects away from the plane of the panel;
• abutting the mating side of each extrusion to a base having a front surface, a planar rear surface, and a plurality of curved bearing surfaces extending between the front surface and the rear surface, wherein the bearing surfaces on the base are sized and shaped to mate with the mating sides of the extrusions, and wherein the number of bearing surfaces on the base corresponds to the number of panels to be joined;
• and
• attaching the extrusions to the base using a clip having a plurality of gripping surfaces substantially conforming to the shape of the bearing surfaces on the base, wherein the clip is attachable to the base such that the extrusion stem is sandwiched between the bearing surfaces of the clip and the bearing surfaces of the base.