A collapsible canopy with an improved locking mechanism. The collapsible canopy has at least three supporting legs. The collapsible canopy also has a central lock that is used for locking the collapsible canopy in an unfolded state and permits the collapsible canopy to be folded into a folded state when the central lock is unlocked. An outer retractable unit is connected between each adjacent supporting leg. An inner retractable unit having an inner end is connected between each supporting leg and the central lock. The inner end of the inner retractable unit is connected through the central lock. Reinforcement bars are pivotally connected between the outer retractable units and the inner retractable units, the reinforcement bars function to maintain the shape of the collapsible canopy when the collapsible canopy is in a locked and unfolded position.

Passageway including a section that is extendable and retractable, the section including frame, slide track assemblies, and scissor bar assembly. The frame includes upright members on a first side of the frame. The slide track assemblies are disposed proximately to the upright members. Each of the slide track assemblies includes a slide track and a slide block. The slide track has a cavity and a channel. The slide block can ascend, descend, and rotate within the cavity. The slide block includes a guide block that extends from the slide block through the channel. The scissor bar assembly is secured to the upright members and slide blocks of the slide track assemblies such that the upright members are enabled to extend and retract with respect to each other along an arcuate path, wherein the guide block limits rotation of the slide block to rotation of the guide block within the channel.

Passageway including a section that is extendable and retractable, the section including frame, slide track assemblies, and scissor bar assembly. The frame includes upright members on a first side of the frame. The slide track assemblies are disposed proximately to the upright members. Each of the slide track assemblies includes a slide track and a slide block. The slide track has a cavity and a channel. The slide block can ascend, descend, and rotate within the cavity. The slide block includes a guide block that extends from the slide block through the channel. The scissor bar assembly is secured to the upright members and slide blocks of the slide track assemblies such that the upright members are enabled to extend and retract with respect to each other along an arcuate path, wherein the guide block limits rotation of the slide block to rotation of the guide block within the channel.

A modular tent frame system comprises a number of folding frame elements which permit the shelter to be rapidly deployed in extreme environmental conditions. Telescopically sliding legs permit the tent frame to be unfolded, and the tent fabric attached to the frame, which the frame is on the ground and the tent can then be raised by sliding the outer leg elements up the inner leg elements to thereby raise the tent to the desired height, even in high winds.

A modular tent frame system comprises a number of folding frame elements which permit the shelter to be rapidly deployed in extreme environmental conditions. Telescopically sliding legs permit the tent frame to be unfolded, and the tent fabric attached to the frame, which the frame is on the ground and the tent can then be raised by sliding the outer leg elements up the inner leg elements to thereby raise the tent to the desired height, even in high winds.

A floating vessel modular protection and security device includes a stationary bowed frame configured to be positioned over a floating vessel, the stationary frame and a moveable bowed frame. A stationary flexible cover extends from one end to the other end of the stationary bowed frame, covering stationary crossbeams. The stationary flexible cover having a length from end to end that is shorter than a length of the floating vessel. A moveable flexible cover extends from one end to the other end of the moveable bowed frame, covering the movable bowed frame crossbeams. The movable bowed frames slides on the upper moveable frame track and lower stationary frame track simultaneously to repeatedly retract and deploy to access or secure a floating vessel.

A folding canopy with an eave structure includes a plurality of support legs and a canopy top folding assembly. The canopy top folding assembly includes a hingedly connected folding top strut and a hingedly connected folding slant strut. Each of the support legs is disposed with a top seat and a sliding seat disposed one above the other. An eave mechanism is disposed between the folding slant strut and the top seat, and the eave mechanism includes a diagonal strut and an eave strut. One end of the diagonal strut is hingedly connected to the folding slant strut, and the other end of the diagonal strut is hingedly connected the eave strut, and an inner end of the eave strut is hingedly connected to the top seat.

Erectable shelter frame structures including a plurality of rib assemblies. Preferably, each rib assembly has a receptacle for receiving a respective end of a purlin arrangement, the other end of which is attached to a receptacle of a subsequent rib assembly. The joints are formed by toggle clamps that assist in facilitating the ease by which the shelter structure can be assembled or disassembled. Methods of construction and disassembly of the shelter frame structure are also disclosed.

Erectable shelter frame structures including a plurality of rib assemblies. Preferably, each rib assembly has a receptacle for receiving a respective end of a purlin arrangement, the other end of which is attached to a receptacle of a subsequent rib assembly. The joints are formed by toggle clamps that assist in facilitating the ease by which the shelter structure can be assembled or disassembled. Methods of construction and disassembly of the shelter frame structure are also disclosed.

Device for tensioning a fabric of a tent comprising a tensioning device, a corner protection device as well as a fastening element, wherein the tensioning device (9) presses against at least one tensioning element (6) of the corner protection device (5), on which the fabric of the tent (1, 12) can be arranged, wherein a fastening element (7) is arranged on the lower part (59) of the corner protection device (5).