Abstract: A detonator block for housing a detonator has a body configured to host the detonator; the body having a first end that is configured to be attached to a sub; the body having a second end, opposite to the first end, and configured to connect to a gun; and a printed circuit board located inside the body, the printed circuit board being electrically connected to the detonator. The body has a holder that is configured to hold the detonator inside the body.

Abstract: Door alarm systems, methods, and apparatus are disclosed. A door alarm system may monitor a door of a refrigeration device and detect a failed attempt at closing the door. In response to detecting the failed attempt, the door alarm system may generate a notification of the detected, failed attempt so that remedial action may be taken.

Abstract: A detonator block for housing a detonator has a body configured to host the detonator; the body having a first end that is configured to be attached to a sub; the body having a second end, opposite to the first end, and configured to connect to a gun; and a printed circuit board located inside the body, the printed circuit board being electrically connected to the detonator. The body has a holder that is configured to hold the detonator inside the body.

Abstract: A refrigerator includes a biological information obtaining unit for obtaining biological information of a person upon detection of the person in the vicinity of the refrigerator. The refrigerator further includes an advice generating portion for generating advice about health care based on analysis of the biological information and a display configured to display the advice in response to a user request.

Abstract: A refrigerator includes a biological information obtaining unit for obtaining biological information of a person upon detection of the person in the vicinity of the refrigerator. The refrigerator further includes an advice generating portion for generating advice about health care based on analysis of the biological information and a display configured to display the advice in response to a user request.

Abstract: A door ajar detection system is provided. The door ajar detection system may be incorporated in a refrigerator to provide a warning when a door is left in an open position, or to prevent a false door-closed detection. The system utilizes like magnetic poles of magnets positioned opposite to each other to push one or more doors in a refrigerator into a full open position such that a door ajar detection assembly may provide an accurate reading. A latch assembly may be provided to hold the one or more doors in a closed position against the force of the like magnetic poles.

Abstract: Provided are a refrigerator and a diagnostic system for the same. The refrigerator includes a selection unit, a control unit, a modulator, and a sound output unit. The selection unit receives a diagnosis performance command. The control unit generates a control signal including product information when the selection unit receives the diagnosis performance command. The modulator generates a frequency signal according to the control signal generated by the control unit. The sound output unit outputs a sound including the product information according to the frequency signal generated by the modulating unit.

Abstract: A load sensing system for a wheelchair lift arrangement includes an elongated member that is rotatable about a longitudinal axis between an unloaded position and a loaded position; a biasing member that biases the elongated member toward the unloaded position; at least one contact member connected to the elongated member and configured to contact a bridge plate; and a switch assembly operatively connected to the elongated member, the switch assembly being configured to be activated to prevent operation of the wheelchair lift arrangement when the elongated member is in the loaded position. A method of regulating movement of a lift platform of a wheelchair lift arrangement is also provided.

Abstract: A smart refrigerator system includes a plurality of compartments for storing food items and one or more tag readers. The smart refrigerator system may read a tag coupled to a food item using one of one or more tag readers. The smart refrigerator system may determine an identity of the food item, an associated date of the food item, and/or a compartment containing the food item. The smart refrigerator system may track item information that includes the identity of the food item, a state of the food item, and/or a compartment location of the food item. The smart refrigerator system may receive item usage information indicating when a user plans to use the food item and change a temperature of the food item. The smart refrigerator system may also generate a notification regarding freshness and/or a spoilage level of the food item and present it to the user.

Abstract: Embodiments of the present invention relate to systems, methods, and apparatus for reliably communicating a detonation signal and perforating oil and/or gas well casings. Particularly, at least one embodiment includes a pass-through bulkhead connection switch that can reliably withstand high operating temperatures and pressures. Such pass-through bulkhead connection switch can be used in perforating gun assemblies and can eliminate or reduce incidents of failed detonations.

Abstract: An interlock device for a switch housed within a casing of a double door structure includes a lever, pivotably supported at an intermediate portion, that pivots a first end portion of said lever downward, when the first door closes a portion of said opening, a link member with a stud, the stud moving the link member upward from a first position to a second position, when the first door is closed, a pushing member mounted on a guide plate of the link member, the pushing member being pushed inward, when the link member is located at the second position, and a switch that turns ON a power supply, when the pushing member contacts the switch in the third position.