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| Number | Title | Issue Date |
| 7434538 | Water agitation system for water retention structure A water agitation system for use with a water retention structure, such as a bird bath or livestock water trough, includes a motor operatively connected to a drive shaft, and a blade assembly extending outwardly from the drive shaft. The motor is operable to rotate ... | 10/14/2008 |
| 7423243 | Heating system and method A fluid heating system includes a fluid receptacle having a fluid reservoir, and a heating control system configured to heat fluid retained within the fluid reservoir. The heating control system includes a processing unit, at least one fluid temperature sensor posit... | 09/09/2008 |
| 7331569 | Liquid aeration system and method A system for aerating liquid within a liquid retention structure including a liquid delivery tube in fluid communication with a gas exchange chamber and a pump. The gas exchange chamber includes an air inlet and a gas outlet. The pump is configured to pump liquid wi... | 02/19/2008 |
| 7285760 | Bucket with access door A bucket including a bottom section and a side wall extending upwardly therefrom to define an interior region. The bottom section has a compartment located therein. The bottom section further includes a door that may be moved between a first position that allows acc... | 10/23/2007 |
| 7241974 | System and method of deactivating a fluid receptacle deicer A deicing system configured to heat fluid within a fluid receptacle to prevent ice from forming includes a sensing unit and a heating element. The sensing unit is configured to detect a change in at least one of capacitance and resistivity. The heating element is co... | 07/10/2007 |
| 7178979 | Water agitation system for water retention structure A water agitation system configured to be positioned within a water retention structure configured to receive and retain water, includes a housing having a drive shaft extending downwardly therefrom; at least one upright member connected to a cross beam that is conf... | 02/20/2007 |
| 6484666 | Bird bath A bird bath includes a bird bath basin adapted to hold water, a base adapted to support the basin, a water reservoir contained within the base, an electrically operated pump contained with the base, and a mechanism, such as a timer or photocell, for contr... | 11/26/2002 |
| 6353708 | Apparatus for mounting an electrical heater through a water tank drain plug opening An electric water tank heater is installable through the drain plug opening of a water tank. The heater includes a power cord interconnected with a heating element through a temperature control device for delivering electrical power to the heating element... | 03/05/2002 |
| 6189487 | Heated animal bed A heated bed for dogs, cats or other animals which can provide a selected amount of heat to the animal depending upon environmental temperatures. The bed includes a hollow blanket casing within which is disposed at least three layers of foam insulation ma... | 02/20/2001 |
| 6084209 | Heated pet bed A heating pad for animals consisting of a plastic housing and an electric heating element. The base of the housing contains conical supports upon which the heating element rests. The heating element is supported in the housing to provide air gaps above an... | 07/04/2000 |
