Systems, devices, and methods for precision boom deployment are provided in accordance with various embodiments. The tools and techniques provided may have space and/or terrestrial applications. Some embodiments include a boom deployment system that may include a furlable boom. Some embodiments include: boom reinforcement devices, end fitting devices, contoured support devices, edge support devices, spiral harness devices, latch devices, combined boom spool and tension drive devices, and/or rotary encoder devices. Some embodiments may utilize a composite slit-tube boom. Some embodiments utilize a furlable boom that may be fabricated with curvature along its length.

Various embodiments provide for bistable collapsible tubular mast (Bi-CTM) booms. Various embodiments provide CTM booms that may be bistable in nature, thereby achieving intrinsic benefits bistability may bring. Bistability may be achieved in various embodiments through specific combinations of the thin-shell cross-section geometry and the composite laminate selected for each thin-shell segment. Additionally, in various embodiments, the thin-shell geometry of each boom half may be different. Various embodiments may include combinations of circular, ellipsoidal, or parabolic segments that form each shell.

An example of support member is provided. The support member includes a plurality of elongated members connected to form a first elongated rigid structure. In addition, the support member includes a first elongated member of the plurality of elongated members disposed proximate to a first edge of the first elongated rigid structure with a first member top surface. The support member further includes a first stacking guide disposed on the first elongated member wherein a first attachment top surface is to slope toward the first member top surface. Also, the support member includes a second elongated member of the plurality of elongated members disposed proximate to a second edge of the first elongated rigid structure with a second member top surface. The second edge is opposite the first edge. The support member also includes a second stacking guide disposed on the second elongated member.

Extendible slit tube members and methods for manufacturing extendible slit tube members are provided. In one aspect, an extendible member (10) comprises a laminated shell (2) of plural fibre reinforced layers (P1-P5) constructed and arranged to be configurable between a coiled form and an extended form. In the extended form (12) the shell is resiliently biased in the form of an elongate tube having longitudinal edges (14) defining a slit (3) along its length and wherein the shell can be opened out at the slit to assume a flattened form in which it can be wound about an axis extending transversely to its longitudinal direction to assume its coiled form (11). In the region of one or both longitudinal edges (50), the amount of reinforcing fibre is less than in the region between the edge regions (51),In another aspect, a flexible cord (40) may be attached along the edge of a shell.

A post sleeve provides a substantially permanent base for supporting a post for a fence or sign, and from which one post can be removed and replaced with another post. The sleeve includes a concrete body that is poured on site, using a sleeve core prepositioned in the post hole, and around which wet concrete is poured. After the concrete is cured, the core is removed, leaving a post sleeve cavity configured to receive a post. The core can be rigid, or can include a flexible shell and stiffener. A preformed post sleeve top can be attached to the sleeve core and positioned therewith in the post hole, to become a permanent part of the post sleeve, once the concrete cures. A drain is attached to the core, and remains in the sleeve when the core is removed, and can be a percolation chamber, or passage extending below the sleeve.

A post sleeve provides a substantially permanent base for supporting a post for a fence or sign, and from which one post can be removed and replaced with another post. The sleeve includes a concrete body that is poured on site, using a sleeve core prepositioned in the post hole, and around which wet concrete is poured. After the concrete is cured, the core is removed, leaving a post sleeve cavity configured to receive a post. The core can be rigid, or can include a flexible shell and stiffener. A preformed post sleeve top can be attached to the sleeve core and positioned therewith in the post hole, to become a permanent part of the post sleeve, once the concrete cures. A drain is attached to the core, and remains in the sleeve when the core is removed, and can be a percolation chamber, or passage extending below the sleeve.

A deck framing system includes a perimeter support member that has a joist support wall and a web wall extending perpendicularly from the joist support wall. Each of a plurality of joist support brackets comprising an attachment portion configured to be attached to the web wall of the perimeter support member and a joist support portion. The joist support portion includes a pair of opposed lateral walls with each lateral wall configured to be attached to a corresponding lateral wall of a joist supported by the joist support wall.

Device, systems, and methods for boom deployment and/or boom stowage are provided in accordance with various embodiments. Some embodiments may facilitate root control of a boom utilizing a variety of tools and techniques. Some embodiments may facilitate boom tip control. Some embodiments may include a boom and a boom spool. Some embodiments include one or more devices that may include: one or more compliant components, one or more boom spreaders, one or more stabilizing tabs, one or more spool locks, one or more boom tip guides, one or more root clamps, and/or a single consolidation roller. Some embodiments include methods that may utilize one or more of the noted devices.

An example of support member is provided. The support member includes a plurality of elongated members connected to form a first elongated rigid structure. In addition, the support member includes a first elongated member of the plurality of elongated members disposed proximate to a first edge of the first elongated rigid structure with a first member top surface. The support member further includes a first stacking guide disposed on the first elongated member wherein a first attachment top surface is to slope toward the first member top surface. Also, the support member includes a second elongated member of the plurality of elongated members disposed proximate to a second edge of the first elongated rigid structure with a second member top surface. The second edge is opposite the first edge. The support member also includes a second stacking guide disposed on the second elongated member.

Systems for reinforcement of structural elements such as piles, posts, pillars, and pipes are disclosed. The present invention features reinforced structural elements. The reinforced structural elements may include a sleeve structure positioned around a length of the structural element such that there is a chamber between the structural element and the sleeve structure. This chamber may be filled with concrete or another core filler material so as to reinforce the structural element. The sleeve structures of the present invention may be formed by the assembly of multiple staggered segmented layers of coupled reinforcing shells such as rigid, semi-rigid, or flexible fiber-reinforced shells.