Abstract: Methods, apparatus, and systems are provided for sensing pressure. One example apparatus includes a housing having a first port, a chamber disposed in the housing and having a second port, wherein the second port is coupled to the first port such that a volume inside the chamber is in fluid communication with an environment external to the housing, and a pressure sensor assembly at least partially disposed in the chamber and configured to sense a pressure of a fluid in the chamber. The chamber may be mechanically coupled to the housing via a portion of an exterior surface of the chamber such that a pressure response of the pressure sensor assembly is independent of extraneous loading on the housing.

Abstract: Methods, apparatus, and systems are provided for sensing pressure. One example apparatus includes a housing having a first port, a chamber disposed in the housing and having a second port, wherein the second port is coupled to the first port such that a volume inside the chamber is in fluid communication with an environment external to the housing, and a pressure sensor assembly at least partially disposed in the chamber and configured to sense a pressure of a fluid in the chamber. The chamber may be mechanically coupled to the housing via a portion of an exterior surface of the chamber such that a pressure response of the pressure sensor assembly is independent of extraneous loading on the housing.

Abstract: A modified trampoline holder structure comprises a plurality of transverse tubes, six connection sleeves, and three supporting tubes. The transverse tubes are connected together into a ring shape. Each connection sleeve firmly clamps the joint of two adjacent transverse tubes. Each connection sleeve is inserted into an end opening of one supporting tube. Locking bumps are formed at two sides of the inner edge of each tube clamping portion. Corresponding locking grooves are formed at two sides of the joint of two adjacent transverse tubes. When the tube clamping portion firmly clamps the joint of two adjacent transverse tubes, the locking bump and the locking groove will be locked together. Each insertion tube portion is composed of at least two arc-shaped sheets. Detents that can be locked together are formed on the two arc-shaped sheets.

Abstract: The present invention discloses a trampoline frame structure, which comprises: multiple transverse pipes, six joint sleeves, and three support pipes, wherein all the transverse pipes are interconnected to form a circle; each joint sleeve has an insertion portion and a clamping portion, and the clamping portion can tightly clamp the connection portions of the transverse pipes, and the insertion portion of each joint sleeve is inserted into the opening of the end of the support pipe, and thus, the support pipes can support the circle formed by the transverse pipes. The trampoline frame structure of the present invention is constructed without the welding used in the conventional technology, and can be easily assembled and disassembled, and can be conveniently stored with less storage space occupied.

Abstract: A multi-layer vacuum assembly-enabled fundamental building material to strengthen the safety of a building structure includes a main body which has a plurality of vacuumized layers formed from the exterior towards the interior that are divided by a plurality of spacers. The shape of the main body may be designed according to requirements of the building structure. The main body further has a first latch section and a second latch section located on the outer side thereof. The vacuumized layers can cushion damage resulting from impact of external forces. It also can block thermal conduction, thereby achieve shock resistant, fire resistant, heat and cold isolation effects.

Abstract: A multi-layer vacuum assembly-enabled fundamental building material to strengthen the safety of a building structure includes a main body which has a plurality of vacuumized layers formed from the exterior towards the interior that are divided by a plurality of spacers. The shape of the main body may be designed according to requirements of the building structure. The main body further has a first latch section and a second latch section located on the outer side thereof. The vacuumized layers can cushion damage resulting from impact of external forces. It also can block thermal conduction, thereby achieve shock resistant, fire resistant, heat and cold isolation effects.