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Sewage lift mechanism with remote alarmRelated Patent Categories: Pumps, Condition Responsive Control Of Pump Drive Motor, Responsive To Accumulation Of Pumped Liquid In ReceiverSewage lift mechanism with remote alarm description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070025860, Sewage lift mechanism with remote alarm. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATIONS [0001] This application claims the benefit of priority to U.S. Application No. 60/704,115 filed Jul. 29, 2005, which is incorporated herein by reference. BACKGROUND [0002] The present invention generally relates to a sewage lift mechanism for use in residences or commercial buildings configured to reduce the likelihood of mechanical failure and further provided with an audible alarm to signal users of a potential overflow. BACKGROUND OF THE INVENTION [0003] Sewage lift stations are commonly used in buildings where gravity flow sewer systems are not feasible. It is often necessary to forcibly pump sewage from a collection basin or other containment area to a remote sewer line or septic system. One such example would be in a residence with a basement where the basement toilet facilities are positioned below or down gradient the sewer lines. [0004] Where it is necessary to forcibly pump sewage to a remote sewer line, it is common to provide a sewer lift station in which sewage is accumulated and, when a predetermined level of sewage is accumulated, a mechanical pump forces the sewage to a remote sewer line or other suitable place, such as a sewage treatment facility. A common sewage lift station includes a barrel shape sewage receptacle or housing which is formed into the substructure of a building. It is to be understood that the receptacle or housing can take any common shape. The sewage receptacle or housing will have a contiguous wall with a bottom and spaced apart top, again preferably in a barrel type configuration. [0005] Sewage passes through a sewage inlet pipe mounted through the wall structure near the top of the sewage receptacle, where it drops into the receptacle by gravitational face. A mechanical pump is provided and is generally mounted to the bottom or floor of the receptacle. Such pumps are commonly referred to as submersible or sump pumps. The pump has an inlet portion and an outlet connected to an outlet pipe. The outlet pipe is connected to a sewer line, septic line, or other intended sewer receiving location. The pump is provided with a trigger mechanism to periodically activate the pump when sewage levels reach a predetermined depth, thereby causing the pump to forcibly discharge sewage through the outlet pipe. One such common triggering mechanism is a float which includes a buoyant portion and a link connected to an electronic switch within the pump. The float is buoyant and will generally remain on the upper surface or top of the accumulating sewage. When the float reaches a predetermined height or level, it triggers the switch which activates the pump, discharging sewage through the outlet pipe. [0006] In known configurations of sewage lift stations, the inlet pipe passes through the housing wall into the inner chamber or portion of the housing. As sewage passes through the inlet pipe, it allows to drop into the sewage receptacle by gravitational force. It is not uncommon for solids commonly found within sewage flow to drop on top of the float, or similar triggering mechanism, which renders that triggering mechanism inoperable. When the float or triggering mechanism is inoperable, the pump is never signaled to evacuate the sewage housing and an overflow of sewage will occur. It is therefore desirable to provide a sewage lift station which is configured to eliminate the possibility of sewage solids trapping the pump triggering mechanism or otherwise rendering it inoperable. [0007] Sewage lift stations are generally provided with an electrical alarm system which sounds when a sewage overflow is about to occur. Alarms are generally positioned within the sewage receptacle and attached to an inner surface of the wall. Because of the severe climate of the sewage receptacle and continued exposure to various sewage solids and liquids, lift station alarms have a high failure rate and a high rate of false alarm. The instant invention overcomes the limitations and problems particular to the previously known sewage lift stations as identified above and commonly known within the industry. BRIEF DESCRIPTION OF THE DRAWINGS [0008] The invention is illustrated using the following figures along with a detailed description of the invention: [0009] FIG. 1 is a cross-sectional view of one embodiment of the invention. [0010] FIG. 2 is a top plan view of the invention. [0011] FIG. 3 is a perspective partial view another embodiment of the invention. [0012] FIG. 4 is a partial cross-sectional view of yet another embodiment of the invention. DETAILED DESCRIPTION OF THE INVENTION [0013] The present invention relates to a new and novel sewage lift station 102 for accumulating and conveying sewage to a remote destination. [0014] Referring now generally to FIG. 1, an embodiment of the invention is shown which includes a substantial barrel shape sewage receptacle or housing 104. The housing 104 includes a contiguous wall 106 with a spaced apart top 108 and bottom 110. A sewer inlet pipe 112 is mounted onto the wall 106 of the sewer housing 104. A sewage drop pipe 114 is formed into the wall 106 of the housing 104 adjacent to and generally downward from the inlet pipe 112. [0015] The sewage drop pipe 114 includes a lower portion 118 which depends generally downward from the side of the housing 104 toward the bottom surface 110 and away from the top surface 108. The sewage drop pipe 114 also includes an upper portion 116 which is oriented generally upward and adjacent the inlet pipe 112. It is preferred that the upper portion 116 of the sewage drop pipe 114 be positioned substantially on the outer surface of the housing 104, although it may be formed integrally therewith. The lower portion 118 of the sewage drop pipe 114 is preferably positioned inward or inside the housing 104 although it may also be formed integrally therewith. An opening 115 is provided through the housing 104 wall 106 so that sewage can pass from the inlet pipe 112 to the lower portion 118 of the sewage drop pipe 114. [0016] Generally, the sewer inlet pipe 112 will be connected to, or near, the confluence of the lower portion 118 and upper portion 116 of the sewer drop pipe. It is to be understood that the piping discussed herein may be manufactured from discrete pipe sections common in the industry or may be of unitary and integral manufacture. [0017] A submersible pump or sump pump 122 is provided within the housing 104 preferably mounted to the bottom surface 110. Sump pumps 122 require an electrical connection for operational power, which due to the inherent nature of such requirement, is not discussed in detail herein. The sump pump 122 is provided with a pump inlet 124, a triggering mechanism 126, a float 128 and an outlet pipe 130 as is common and standard on known sump pumps. The pump outlet pipe 130 is connected to a remote destination for sewage, such as a sewage line 132, septic line or treatment facility. The sump pump 122 works in the common manner. As sewage accumulates in the receptacle 104, the float 128 is elevated and whereupon a predetermined accumulation of sewage is reached, the triggering mechanism 126 is activated, whether electronically or mechanically. When the triggering mechanism 126 is activated, the pump motor draws sewage through the pump inlet 124 and forcibly expels the sewage through the outlet pipe 130 to the remote sewer line 132. [0018] In the instant embodiment of the invention, as sewage is passed through the inlet pipe 112 into the sewage drop pipe 114, it falls by gravitational force through the lower portion 118 of the sewage drop pipe 114, through the pipe orifice and into the sewage receptacle 104. The outlet portion 118 of the sewage drop pipe 114 is positioned generally below or downward the float 128 and triggering mechanism 126 of the sump pump 122, so that sewage cannot drop onto the float 128 or triggering mechanism 126. [0019] Known and common sewage lifts, sewage typically flows from an inlet pipe directly to the inside of the housing. Because the sewage pipe necessarily must be up gradient to allow for gravitational drop of sewage into the housing solids within the sewage can trap or damage the sump pump, particularly the float and triggering mechanism. It is not uncommon for the triggering mechanism to be trapped or damaged by solids in the sewage stream and prevented from activating the pump when the predetermined sewage level is reached. Continue reading about Sewage lift mechanism with remote alarm... Full patent description for Sewage lift mechanism with remote alarm Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Sewage lift mechanism with remote alarm patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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