Abstract: A system and method acquire raw data from drilling equipment that includes at least two drilling related parameters measured in real time during a drilling operation by a drilling rig and conditioning the raw data by removing outlier data values and/or filtering out noise. The conditioned data is processed to generate output values and generating an alarm based on the output values to indicate an abnormal drilling condition. Processing the conditioned data includes determining incremental changes in data values and whether the incremental changes are an increase, decrease or no change for each of the at least two drilling related parameters. The incremental changes are summed over a user-defined time period for each of the at least two drilling related parameters and compared to a threshold for the user-defined time period for each of the at least two drilling related parameters.

Abstract: A system and method acquire raw data from drilling equipment that includes at least two drilling related parameters measured in real time during a drilling operation by a drilling rig and conditioning the raw data by removing outlier data values and/or filtering out noise. The conditioned data is processed to generate output values and generating an alarm based on the output values to indicate an abnormal drilling condition. Processing the conditioned data includes determining incremental changes in data values and whether the incremental changes are an increase, decrease or no change for each of the at least two drilling related parameters. The incremental changes are summed over a user-defined time period for each of the at least two drilling related parameters and compared to a threshold for the user-defined time period for each of the at least two drilling related parameters.

Abstract: A foot actuated doorbell button assembly can comprise a housing that contains a button as well as a pedal that can be stepped on to actuate the button. The housing can be configured to mount to a wall or to the ground so that the pedal is positioned at or near the ground where it can be easily stepped on. The housing can contain wired or wireless circuitry to allow the doorbell button assembly to be used with virtually any of the existing doorbell assemblies currently available.

Abstract: A method of monitoring drilling conditions includes acquiring raw data from drilling equipment and conditioning the raw data to generate conditioned data. Conditioning the raw data includes removing outlier data values and/or filtering out noise. The method further includes processing the conditioned data to generate output values. Processing the conditioned data includes determining a slope of a first set of data values of the conditioned data. The first set of data values correspond to a regression length of time. Processing the conditioned data further includes determining whether a difference between the slope of the first set of data values and a median slope determined over a median window of time exceeds a threshold. The method also includes generating an alarm based on the output values to indicate an abnormal drilling condition.

Abstract: A foot actuated doorbell button assembly can comprise a housing that contains a button as well as a pedal that can be stepped on to actuate the button. The housing can be configured to mount to a wall or to the ground so that the pedal is positioned at or near the ground where it can be easily stepped on. The housing can contain wired or wireless circuitry to allow the doorbell button assembly to be used with virtually any of the existing doorbell assemblies currently available.

Abstract: A method of monitoring drilling conditions includes acquiring raw data from drilling equipment and conditioning the raw data to generate conditioned data. Conditioning the raw data includes removing outlier data values and/or filtering out noise. The method further includes processing the conditioned data to generate output values. Processing the conditioned data includes determining a slope of a first set of data values of the conditioned data. The first set of data values correspond to a regression length of time. Processing the conditioned data further includes determining whether a difference between the slope of the first set of data values and a median slope determined over a median window of time exceeds a threshold. The method also includes generating an alarm based on the output values to indicate an abnormal drilling condition.

Abstract: A clean room filter support system has a filter unit comprising a perimetrical frame having four sides of a predetermined vertical extent with upper and lower edges and filtering material held within the frame for air flow between a first plane incorporating rear face of the filter material and a second plane incorporating a front face of the filter material, at least one side of the perimetrical frame defines an outwardly projecting bracket. There is a connector extending vertically between the support surface and the filter unit frame that has a rod supported from the support surface and an anchor structure supported by the rod. A spring-loaded pin engages with the bracket and is adjustable to selectively engage the anchor structure to couple the filter unit by its bracket to the anchor structure, the pin being adjustable for selectively engaging the anchor structure. A clip interposed between the pin head and the bracket blocks shifting of the filter unit against the resiliency of the spring.

Abstract: A clean room ceiling filter system has a filter unit received by a filter unit receiving unit, the filter unit and filter receiving unit define cooperating latch and keeper structure that deflects into fastened engagement and releases from within the clean room by simultaneous pivoting of each latch member of each set of latch members. A tubular rod within the filter unit allows dispensing test material onto the filter media from within the clean room and adjustment of an air flow damper also from within the clean room.