David Halpert

David Halpert was an inventor of various chemical patents in the 1950s and 1960s relating to surface plating of titanium, aluminum and aluminum base alloys critical for the successful development of the Chinook Helicopter, under the auspices of Vertol Aircraft Corporation, formerly Piasecki Helicopter Corporation, subsequently Boeing Vertol, then Boeing Helicopters, and currently Boeing Rotorcraft Systems, a US aircraft manufacturer, now part of Boeing Defense, Space & Security.^{[1][2][3][4][5][6][7][8][9][10]} Although Boeing is a known name in the large commercial aircraft industry and defense aircraft manufacturing, its most widely recognized helicopter product has historically been the easily identifiable tandem rotor heavy-lift Boeing Vertol CH-47 Chinook helicopter – one of the few aircraft from the 1950s–1960s still in production, most recently in international news for the 2011 Chinook shootdown in Afghanistan which killed 38 people, including 17 Navy SEALs.^{[11][12][13][14][15][16]}

References

1. ^ "Electroplating titanium ano titanium alloys – US 2921888 A". IP.com. http://ip.com/patent/US2921888. Retrieved November 12, 2011. 
2. ^ http://images.ip.com/pageimg/patent.uspto/02/921/02921888.tif?t=BD4J6BH33A5FAF6B2EAB4A50AD46B3&w=fp1&r=US2921888
3. ^ "Electroplating titanium ano titanium alloys – VERTOL AIRCRAFT CORP". Freepatentsonline.com. January 19, 1960. http://www.freepatentsonline.com/2921888.html. Retrieved November 12, 2011. 
4. ^ "Patent Images". Patimg2.uspto.gov. http://patimg2.uspto.gov/.piw?Docid=02921888&homeurl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO2%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r%3D1%2526f%3DG%2526l%3D50%2526co1%3DAND%2526d%3DPALL%2526s1%3D%252522david%252Bhalpert%252522%2526OS%3D%252522david%252Bhalpert%252522%2526RS%3D%252522david%252Bhalpert%252522&PageNum=&Rtype=&SectionNum=&idkey=NONE&Input=View+first+page. Retrieved November 12, 2011. 
5. ^ "Method and composition for treating aluminum and aluminum alloys". Freepatentsonline.com. http://www.freepatentsonline.com/2883311.pdf. Retrieved November 12, 2011. 
6. ^ "United States Patent: 2883311". Patft.uspto.gov. April 21, 1959. http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PALL&s1=%22david+halpert%22&OS=%22david+halpert%22&RS=%22david+halpert%22. Retrieved November 12, 2011. 
7. ^ "House Report 112-78 – NATIONAL DEFENSE AUTHORIZATION ACT FOR FISCAL YEAR 2012". Gpo.gov. http://www.gpo.gov/fdsys/pkg/CRPT-112hrpt78/html/CRPT-112hrpt78.htm. Retrieved November 12, 2011. 
8. ^ April 20, 1959, The Inquirer (Philadelphia; Triangle Publications)
9. ^ Oct 4, 1959, The Inquirer (Philadelphia; Triangle Publications)
10. ^ February 15, 1960, The Inquirer (Philadelphia; Triangle Publications)
11. ^ "Helicopter Shot Down: 22 Navy SEALs Dead in Crash in Afghanistan – ABC News". Abcnews.go.com. August 6, 2011. http://abcnews.go.com/International/helicopter-shot-25-navy-seals-dead-crash-afghanistan/story?id=14245387. Retrieved November 12, 2011. 
12. ^ Jon Boone in Kabul. "Worst US loss of life in Afghan war as helicopter crash kills 38 | World news | guardian.co.uk". The Guardian. UK. http://www.guardian.co.uk/world/2011/aug/06/us-biggest-loss-afghan-war-helicopter-crash-38. Retrieved November 12, 2011. 
13. ^ "The crash of Boeing's CH-47C Chinook 74-22292". Chinook-helicopter.com. http://www.chinook-helicopter.com/history/aircraft/C_Models/74-22292/74-22292.html. Retrieved November 12, 2011. 
14. ^ "Washington Mourns U.S. Troops Killed In Afghan Helicopter Crash". Fox News. April 7, 2010. http://www.foxnews.com/politics/2011/08/06/washington-mourns-us-troops-killed-in-afghan-helicopter-crash/. Retrieved November 12, 2011. 
15. ^ "22 Navy SEALs among 30 U.S. troops killed in Afghanistan as NATO helicopter is shot down". The Washington Post. May 26, 2011. http://www.washingtonpost.com/world/asia/dozens-of-us-troops-feared-killed-as-nato-helicopter-crashes-in-afghan-offensive/2011/08/06/gIQAlbT2xI_story.html. Retrieved November 12, 2011. 
16. ^ "Afghanistan, Taliban: Bodies of 30 Americans killed aboard copter are flown home – Los Angeles Times". Articles.latimes.com. August 8, 2011. http://articles.latimes.com/2011/aug/08/world/la-fg-afghan-helicopter-web-20110809. Retrieved November 12, 2011. 

Notes

"Method and Composition for Treating Aluminum and Aluminum Alloys": http://www.google.com/patents?id=INRvAAAAEBAJ&pg=PA1&dq=david+halpert+philadelphia&hl=en&ei=QI1lTsOHIcvogQfk3sWQCg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CC4Q6AEwAA#v=onepage&q=david%20halpert%20philadelphia&f=false