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Harvard Business School
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AstraZeneca
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Last Updated: January 26, 2022

DrugPatentWatch Database Preview

Claims for Patent: 3,958,535

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Summary for Patent: 3,958,535
Title: Universal animal feed bag
Abstract:A universal disposable water bag for supplying bacteria-free water and/or premedicated water to laboratory animals comprises a generally rectangular plastic bag having a plastic demand feeding valve located on a wide face near one end of the bag so that when it is positioned in a holder the valve may feed vertically, horizontally or at an inclination. The demand feeding valve also has means for piercing the bag just prior to positioning it for use. The holder is constructed to shield the bag from the claws of the animals and has hooks to secure it to the cage.
Inventor(s): Salvia; Matthew (Stanfordville, NY)
Assignee:
Application Number:05/517,509
Patent Claims:1. A universal disposable water bag for feeding laboratory animals comprising a generally rectangular, flat bag of plastic sheeting adapted to be heat sealed and enclose a quantity of sterile water, having a demand feeding valve made of hard moldable plastic, heat sealed to a flat face of said bag, said valve comprising a fitment with two longitudinally spaced detents and a flange portion that is heat sealed to the bag, a valve body having a boss normally engaging the detent farthest from the flange, a piercing means at the end within said fitment and a demand feeding valve with a spring reed control means at the other end whereby pushing the valve body towards the flange to engage the other detent will pierce the bag and release the sterile water for feeding the animals.

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Serving leading biopharmaceutical companies globally:

Dow
Mallinckrodt
Boehringer Ingelheim
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Medtronic
Colorcon

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