Patents by Inventor John E. Sheaffer
John E. Sheaffer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7451723Abstract: A multipurpose rat cage is provided for housing a plurality of different species of rodents therein. The rat cage includes a cage bottom having a plurality of integral side walls, a floor and an open top end. The floor has a length and a width such that the area of the floor is between 80 square inches and a 140 square inches.Type: GrantFiled: October 15, 1998Date of Patent: November 18, 2008Assignee: Lab Products Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Jessica R. Matthews, legal representative, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer, Albert P. Ruggieri
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Patent number: 6526915Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.Type: GrantFiled: June 13, 2000Date of Patent: March 4, 2003Assignee: Lab Products, Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Albert P. Ruggieri, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer
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Publication number: 20020069834Abstract: A combination food and liquid dispenser for an animal cage including a first compartment and a second compartment being in vertical relation to each other. The second compartment is constructed to receive food therein and provide an animal access to the food item disposed therein and the first compartment is constructed to receive a liquid container therein and provide an animal with access to the liquid container disposed in the first compartment. A bracket assembly is affixed to the dispenser and supports the dispenser within the cage on less than four side walls thereof. A filter cap for the animal cage includes a body portion dimensioned to fit upon and cover over the top of the cage.Type: ApplicationFiled: May 17, 2001Publication date: June 13, 2002Inventors: Eric A. Deitrich, John E. Sheaffer
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Patent number: 6341581Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.Type: GrantFiled: March 7, 2000Date of Patent: January 29, 2002Assignee: Lab Products, Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Albert P. Ruggieri, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer
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Patent number: 6336427Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.Type: GrantFiled: June 13, 2000Date of Patent: January 8, 2002Assignee: Lab Products, Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Albert P. Ruggieri, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer
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Patent number: 6336425Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.Type: GrantFiled: June 13, 2000Date of Patent: January 8, 2002Assignee: Lab Products, Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Albert P. Ruggieri, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer
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Patent number: 6295950Abstract: A combination food and liquid dispenser for an animal cage including a first compartment and a second compartment being in vertical relation to each other. The second compartment is constructed to receive food therein and provide an animal access to the food item disposed therein and the first compartment is constructed to receive a liquid container therein and provide an animal with access to the liquid container disposed in the first compartment. A bracket assembly is affixed to the dispenser and supports the dispenser within the cage on less than four side walls thereof. A filter cap for the animal cage includes a body portion dimensioned to fit upon and cover over the top of the cage.Type: GrantFiled: January 20, 1999Date of Patent: October 2, 2001Assignee: Lab Products, Inc.Inventors: Eric A. Deitrich, John E. Sheaffer
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Patent number: 6227146Abstract: A filter bonnet for an open-top cage includes: a filter top adapted to cover the open top of the open-top cage. The filter top has a body portion with a perforated top wall and side walls extending therefrom forming an open bottom end. A shield is permanently affixed to the top wall and disposed within an area defined by the side walls.Type: GrantFiled: June 7, 1999Date of Patent: May 8, 2001Assignee: Lab Products Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, John E. Sheaffer, Dale Murray, Lynn Irwin
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Patent number: 6158387Abstract: A ventilated cage and rack system which maximizes cage density within the rack is provided. The rack includes at least one air exhaust plenum, and at least one canopy disposed within the rack. The canopy is capable of supporting a first cage within the rack above the canopy, and also positioning a second cage below the canopy so as to maintain a gap between the top of the second cage and the canopy to permit air to be drawn into the air exhaust plenum from the interior of the second cage through the top of the second cage and to also permit ambient air to be drawn across the top of the second cage into the air exhaust plenum.Type: GrantFiled: September 10, 1998Date of Patent: December 12, 2000Assignee: Lab Products Inc.Inventors: George Gabriel, Chin Soo Park, John E. Sheaffer
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Patent number: 6041741Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.Type: GrantFiled: June 26, 1998Date of Patent: March 28, 2000Assignee: Lab Products, Inc.Inventors: George S. Gabriel, Neil E. Campbell, Chin Soo Park, Albert P. Ruggieri, John E. Sheaffer, Dale Murray, Eric A. Deitrich, Lynn Irwin, Rodney Gerringer
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Patent number: 6029698Abstract: A device for regulating exhaust air flow in a ventilation system when a rack is removed from the system. The device includes a housing forming an air conduit. A valve is mounted in the housing with the valve being moveable between an open position when the device is connected to the rack, and in one of a plurality of partially preset closed positions when the device is not connected to the rack. A valve adjustment member selects the one of a plurality of partially closed positions and is preset during factory testing. When valve is installed at facility and valve is removed from rack the adjustment is fully automatic. The technician merely disconnects the exhaust drop hose with valve attached, and valve automatically adjusts to a preset back pressure duplication position (partially closed position).Type: GrantFiled: June 17, 1998Date of Patent: February 29, 2000Assignee: Lab Products, Inc.Inventors: Dale Murray, John E. Sheaffer, Ronald W. Hardesty
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Patent number: 5954013Abstract: A ventilated cage and rack system which maximizes cage density within the rack is provided. The rack includes at least one air exhaust plenum, and at least one canopy disposed within said rack. The canopy is capable of supporting a first cage within the rack above the canopy, and also positioning a second cage below the canopy so as to maintain a gap between the top of the second cage and the canopy to permit air to be drawn into the air exhaust plenum from the interior of the second cage through the top of the second cage and to also permit ambient air to be drawn across the top of the second cage into the air exhaust plenum.Type: GrantFiled: September 18, 1996Date of Patent: September 21, 1999Assignee: Lab Products Inc.Inventors: George Gabriel, Chin Soo Park, John E. Sheaffer
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Patent number: 5950567Abstract: A multiple dosage feeder for a cage is provided. The multiple dosage feeder includes a frame having a cage-interior side, a food holding member rotatably mounted on the frame, and a food presentation member disposed on the cage-interior side of the frame. The food holding member holds a plurality of measured dosages of food or other substances, and at least a portion of the food holding member extends to the cage-interior side of the frame. The food presentation member permits access to a single dosage of the plurality of dosages by an animal within the cage. At least a portion of the food holding member is rotatable within the food presentation member so as to expose the single dosage of the plurality of dosages, while the food presentation member prevents access to any remaining dosages on the cage-interior side of the frame.Type: GrantFiled: November 1, 1996Date of Patent: September 14, 1999Assignee: Lab Products, Inc.Inventors: John E. Sheaffer, Theodore William Frentzel, Jr., Arvind Krishna Bhide, Charles Elwood Cover
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Patent number: 5924384Abstract: A combination food and liquid dispenser for an animal cage including a first compartment and a second compartment being in vertical relation to each other. The second compartment is constructed to receive food therein and provide an animal access to the food item disposed therein and the first compartment is constructed to receive a liquid container therein and provide an animal with access to the liquid container disposed in the first compartment. A bracket assembly is affixed to the dispenser and supports the dispenser within the cage on less than four side walls thereof. A filter cap for the animal cage includes a body portion dimensioned to fit upon and cover over the top of the cage.Type: GrantFiled: October 12, 1995Date of Patent: July 20, 1999Assignee: Lab Products, Inc.Inventors: Eric A. Deitrich, John E. Sheaffer
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Patent number: 5735233Abstract: An animal cage rack locking mechanism is provided for releasable locking a cage to an animal cage rack. An indexing arm disposed in a sleeve extends into the slide path of the cage and is coupled to a locking arm also disposed in the sleeve. When the cage is slid into the rack, the indexing arm causes the locking arm to extend from the sleeve to lock the cage in place.Type: GrantFiled: November 9, 1995Date of Patent: April 7, 1998Assignee: Lab Products, Inc.Inventors: Eric A. Deitrich, John E. Sheaffer, Neil E. Campbell, James Best, William Marston, Ronald W. Hardesty
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Patent number: 5694885Abstract: An animal feeder that can be mounted on a wall of an animal cage includes a feeder assembly including a back wall, a trough region integrally formed with the back wall and a front wall integrally formed with the trough region and a securing member for securing the feeder asssembly to the wall of the cage. The feeder assembly includes a plurality of slots providing the animal access to a food item placed therein. The animal feeder may include a perch assembly releasably mounted to the feeder assembly. The perch assembly which includes a perch constructed from a plurality of wires, includes a mounting assembly for releasably mounting said perch assembly to said feeder assembly.Type: GrantFiled: October 12, 1995Date of Patent: December 9, 1997Assignee: LAB Products, Inc.Inventors: Eric A. Deitrich, John E. Sheaffer
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Patent number: D476452Type: GrantFiled: May 18, 2001Date of Patent: June 24, 2003Assignee: Lab Products, Inc.Inventors: Eric A. Dietrich, John E. Sheaffer
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Patent number: D397526Type: GrantFiled: November 1, 1996Date of Patent: August 25, 1998Assignee: Lab Products Inc.Inventor: John E. Sheaffer
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Patent number: D403130Type: GrantFiled: November 1, 1996Date of Patent: December 22, 1998Inventors: Gary B. Bunney, John E. Sheaffer, Dale R. Murray
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Patent number: D420772Type: GrantFiled: October 15, 1998Date of Patent: February 15, 2000Assignee: Lab Products, Inc.Inventors: George S. Gabriel, John E. Sheaffer, Rodney Gerringer