Q.e.d. Environmental Systems, Inc.

Other

David B Kaminski

David A Fischer

David Mioduszewski

Mark T Weinberger

Hunter C Anstadt

Daniel O Hayes

Daniel W Moy

John E Saarinen

A soil sampler includes a base and a plunger insertable into the base. The depth in which the plunger is inserted into the base determines the size of the sample collected by the soil sampler. The depth in which the plunger is inserted into the base can switch between a first size and a second size, allowing the user to collect different sample sizes using a single soil sampler. The soil sample that is collected can then be ejected from the soil sampler by shifting the plunger to an eject position relative to the base in which the plunger can shift further into the base to eject the soil sample.

Soil sampler

Soil sampler tool

A system for sampling groundwater from a well that includes a pump configured to be at least partially submerged in the groundwater within the well and pump the groundwater out of the well, a sensor configured to output a signal indicative of the depth of the groundwater in the well, and a controller in communication with the sensor. The controller is configured to receive the signal indicative of the depth of the groundwater from the sensor and compensate for groundwater ingress into the well by adjusting a rate of flow of groundwater pumped by the pump based on the signal to stabilize the depth of groundwater in the well while the pump is pumping groundwater from the well.

Environmental groundwater sampling system

A method for using a controller to control a fluid pump by controlling the rate at which the pump fills with fluid and subsequently discharges fluid. The pump includes a chamber for collecting fluid from within a well bore in which the pump is disposed. A user inputs a pump cycle time and a pump cycle volume to the controller. The pump cycle time input is used to determine a cycling period for the pump. The pump cycle volume is used to allot a portion of the cycling period to the refilling of the pump with fluid and the remaining portion of the cycling period to the discharging of fluid from the pump. The controller controls the pump such that the pump is vented to atmosphere during the refill portion, allowing the pump to fill with fluid, and such that pressurized fluid, such as compressed gas, is injected into the pump during the discharge cycle, causing fluid collected within the pump to be discharged. In another mode of operation, a sensor is coupled to the controller. The sensor sense when the water level in the well bore drops below a maximum desired drawdown level, and the controller adjusts the pumping rate to avoid exceeding the maximum drawdown level.

Bladder-type sampling pump controller

A method and apparatus for monitoring the fluid level in a well bore to limit fluid drawdown in the well bore to a maximum set level. The user first determines the static water level in the well bore by lowering a sensor into the well bore. The sensor is configured to sense when it makes contact with water, so that the user can be made aware that the sensor has reached the static water level. The user then lowers the sensor to a maximum desired drawdown level. The sensor is then set to sense when it loses contact with the water. The sensor is then monitored to determine if the fluid had has dropped below the maximum desired drawdown level, and an audible and/or visual alarm alerts the user whenever the maximum desired drawdown level is exceeded.

Method and apparatus for measuring groundwater levels

The present invention provides a method for monitoring select purge water parameters and determining when the parameters have stabilized. The method includes the steps of selecting which parameters are to be monitored and selecting the time interval between which evaluation readings are performed. The time interval may be selected in set time increments from within a predetermined time range. With the passing of each interval, the results of the evaluation readings are stored in a memory device for at least one, and more preferably a plurality, of consecutive readings. If the readings do not fall within the defined stabilization ranges for the selected parameters, the oldest scan is deleted from the memory device. The comparison of the reading results is again performed with the start of the next interval, with the new reading results being compared to the two old reading results. When the selected parameter values do fall within the defined ranges for three consecutive readings, the operator is alerted that stabilization has been obtained.

Method for analyzing purge water

A reservoir for power steering fluid includes an upright housing that forms an upper interior space for storage of a reserve fluid supply, and a lower interior space containing a fluid filter. Fluid connectors are provided for causing fluid to flow in a circumferential swirling pattern as it moves through the filter, such that the flowing fluid has a relatively long residence time in the lower portion of the reservoir for achievement of an effective cooling action. The fluid filter is connected in a return line form the power steering unit to the associated pump, so that the filter exerts a back pressure on fluid flowing from the power steering unit to the filter.

Power steering fluid reservoir

A display for holding a golf ball for viewing includes a pair of body members, including a front body member having an opening for viewing a portion of the golf ball surface, and an internal opening behind the viewing opening for accommodating the ball such that it is trapped between the two body members.

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Clayton, CA, United States of America

David B Kaminski