Abstract: A shock absorbing lighting device is provided which includes first and second end members each having an inner surface, an outer surface, and a peripheral edge. The first and second end members are held in spaced relationship by a plurality of elongated support members disposed in spaced relationship about the inner surfaces of the end members and adjacent to the peripheral edges of the end members to form a frame structure within which a light member is disposed. The light member is supported within the frame structure by resiliently urged hook members adapted to minimize transfer of shock from the frame structure to the light member.

Abstract: A device for forming joints in the fabrication of enclosure frames is disclosed comprising a first, second and third sleeve members each adapted to slidably receive a frame member. The sleeve members are constructed and arranged to be attached to each other so that the axes of the sleeve members are generally mutually perpendicular whereby two sleeve members are adapted to receive lateral frame members and one sleeve member is adapted to receive a vertical frame member. Securing means are associated with each sleeve member for releasably securing the frame members within the sleeve members. A skeletal frame for enclosures formed of the joint forming devices is disclosed.

Abstract: An adjustable shore frame is disclosed which has a first sleeve member adapted to slidably receive a major length adjusting vertical support member and a second sleeve member adjacent to the first sleeve member and adapted to slidably receive a minor length adjusting vertical support member. First adjusting members are adapted, in association with the first sleeve member, to longitudinally releasably engage a major length adjusting member relative to the first sleeve member to provide major or rough adjustment of the overall length of the shore. Second adjusting members are adapted, in association with the second sleeve member, to provide for continuous instantaneous extension or retraction of the minor length adjusting vertical support member longitudinally relative to the second sleeve member to provide for minor or fine adjustment of the overall length of the shore.