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Serving leading biopharmaceutical companies globally:

Express Scripts
Covington
Chubb
Deloitte
Julphar
Baxter
Harvard Business School
US Department of Justice
Daiichi Sankyo
Chinese Patent Office

Generated: January 17, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,503,407

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Summary for Patent: 5,503,407
Title: Windbacks for rotating shafts
Abstract:An annular windback is provided in a housing containing a lubricant sump and a rotating shaft therein. The windback is located at one end of the sump and the shaft extends through the windback. The housing has a seal interacting between the housing and the shaft to prevent lubricant from exiting the sump and to prevent other media within the housing from entering the sump. The windback is located between the seal and the one end of the sump and has a spiral groove in the inner annular surface facing the shaft for providing a return path for lubricant carried toward the seal by shaft windage. One or more radial holes are formed in the windback at an axial location thereon between the seal and the closer end of the spiral groove to equalize the pressure at the aforesaid axial location between the windback and the shaft with the pressure in the remainder of the sump.
Inventor(s): McNickle; Alan D. (Sellersville, PA)
Assignee: Stein Seal Company (Kulpsville, PA)
Application Number:08/229,172
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 5,503,407

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Serving leading biopharmaceutical companies globally:

McKinsey
Medtronic
US Department of Justice
Accenture
Teva
Boehringer Ingelheim
Moodys
Colorcon
McKesson

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