A tent for snow removal is provided. The tent comprises a tunnel portion comprised of a textile material. The tent further includes a front opening at a front side of the tunnel portion, a rear opening at a rear side of the tunnel portion, an enclosure affixed to the tunnel portion, a snow sensor mounted to the enclosure, wherein the snow sensor is configured and disposed to generate an electrical signal in response to snow contacting the sensor, and a heating system configured and disposed to heat the textile material, where the heating system is configured and disposed to be activated upon reception of the electrical signal.

A vault system is provided that secures a brace to the underside of a vault lid to improve the performance of the lid when the lid is subject to external loads. The vault has guiding features to receive a brace and place the brace in a particular position. Then, a vault lid is pressed into the vault, and tabs on the vault lid deflect into receiving portions on the ends of the brace to secure the brace to the vault lid. The resulting vault lid is reinforced with a brace. In some embodiments, the guiding feature comprises a rib in a recess in the brace, and in various embodiments, the tabs have an arm and a hook disposed on a distal end of the arm. The tab arms deflect to fit around the end of the brace, then an undercut on the hook secures the brace to the lid.

A vault system is provided that secures a brace to the underside of a vault lid to improve the performance of the lid when the lid is subject to external loads. The vault has guiding features to receive a brace and place the brace in a particular position. Then, a vault lid is pressed into the vault, and tabs on the vault lid deflect into receiving portions on the ends of the brace to secure the brace to the vault lid. The resulting vault lid is reinforced with a brace. In some embodiments, the guiding feature comprises a rib in a recess in the brace, and in various embodiments, the tabs have an arm and a hook disposed on a distal end of the arm. The tab arms deflect to fit around the end of the brace, then an undercut on the hook secures the brace to the lid.

An air manifold assembly for underground shelters which is capable of withstanding extreme weather conditions. The air manifold assembly includes a ventilation pipe, a tank-head-shaped dome, an annular plate, and a plurality of holes. A top end of the ventilation pipe is concentrically positioned within the annular plate. The annular plate is laterally connected about the ventilation pipe and joins the ventilation pipe to the tank-head-shaped dome. The tank-head-shaped dome protects and prevents the clogging and damage of the ventilation pipe. The tank-head-shaped dome is positioned adjacent to the top end of the ventilation pipe and is perimetrically connected to the annular plate. The plurality of holes exposes the ventilation pipe to the external atmosphere. The plurality of holes is radially distributed about the annular plate with each hole normally traversing through the annular plate. Opposite the tank-head-shaped dome, the ventilation pipe is connected to the underground shelter.

An air manifold assembly for underground shelters which is capable of withstanding extreme weather conditions. The air manifold assembly includes a ventilation pipe, a tank-head-shaped dome, an annular plate, and a plurality of holes. A top end of the ventilation pipe is concentrically positioned within the annular plate. The annular plate is laterally connected about the ventilation pipe and joins the ventilation pipe to the tank-head-shaped dome. The tank-head-shaped dome protects and prevents the clogging and damage of the ventilation pipe. The tank-head-shaped dome is positioned adjacent to the top end of the ventilation pipe and is perimetrically connected to the annular plate. The plurality of holes exposes the ventilation pipe to the external atmosphere. The plurality of holes is radially distributed about the annular plate with each hole normally traversing through the annular plate. Opposite the tank-head-shaped dome, the ventilation pipe is connected to the underground shelter.

An underground disaster shelter uses multiple shelter sections, an entranceway panel and a rear panel to create a structure that is protects against hazards in the external world. The underground disaster shelter is formed by serially connecting the shelter sections, connecting the entranceway panel adjacent to the head section of the series, and connecting the rear panel to the tail section of the series. Each of the shelter sections is equipped with a base, a gravity flange, a frame, and an exterior shell. The gravity flange is mounted around the base to retain the underground shelter at a desired depth. The frame is mounted onto the base and the exterior shell is mounted onto the frame. Accordingly, the frame, the base, and the exterior shell create a shelter section. The size of an interior compartment of the underground shelter is delineated by the number

An underground disaster shelter uses multiple shelter sections, an entranceway panel and a rear panel to create a structure that is protects against hazards in the external world. The underground disaster shelter is formed by serially connecting the shelter sections, connecting the entranceway panel adjacent to the head section of the series, and connecting the rear panel to the tail section of the series. Each of the shelter sections is equipped with a base, a gravity flange, a frame, and an exterior shell. The gravity flange is mounted around the base to retain the underground shelter at a desired depth. The frame is mounted onto the base and the exterior shell is mounted onto the frame. Accordingly, the frame, the base, and the exterior shell create a shelter section. The size of an interior compartment of the underground shelter is delineated by the number

The invention is an improved underground storm shelter that has a downwardly tapered rear end, a removable front wall having a slidable door, an interior chamber for an occupant to take shelter, a ventilation system for ventilating and providing air circulation within the chamber of the shelter, and an anchoring means for anchoring the shelter to the ground. The storm shelter is lightweight for transport and installation, but sturdy during inclement weather because of the anchoring system.

The invention is an improved underground storm shelter that has a downwardly tapered rear end, a removable front wall having a slidable door, an interior chamber for an occupant to take shelter, a ventilation system for ventilating and providing air circulation within the chamber of the shelter, and an anchoring means for anchoring the shelter to the ground. The storm shelter is lightweight for transport and installation, but sturdy during inclement weather because of the anchoring system.