Rotary expansible chamber devices – Unlike helical surfaces on relatively wobbling rotating...
Reexamination Certificate
2005-06-14
2005-06-14
Vrablik, John J. (Department: 3748)
Rotary expansible chamber devices
Unlike helical surfaces on relatively wobbling rotating...
C418S153000
Reexamination Certificate
active
06905319
ABSTRACT:
An improved down hole drilling motor suitable for drilling applications. The down hole drilling motor comprising a stator disposed in the tubular housing. The stator includes an internal cavity having one or more lobes. A rotor operatively positioned in the cavity of the stator is adapted to cooperate with the one or more lobes of the stator. The stator comprising a compound having improved manufacturing and performance characteristics.
REFERENCES:
patent: 1892217 (1932-12-01), Moineau
patent: 3607981 (1971-09-01), Morris
patent: 3840080 (1974-10-01), Berryman
patent: 3912426 (1975-10-01), Tschirky
patent: 4008190 (1977-02-01), Taylor et al.
patent: 4185839 (1980-01-01), Allen
patent: 4259460 (1981-03-01), Schwarz
patent: 4415316 (1983-11-01), Jürgens
patent: 4546130 (1985-10-01), Mishida et al.
patent: 4588309 (1986-05-01), Uyehara et al.
patent: 4614779 (1986-09-01), Watanabe et al.
patent: 4631309 (1986-12-01), Thörmer et al.
patent: 4636151 (1987-01-01), Eppink
patent: 4688605 (1987-08-01), Eisenzimmer et al.
patent: 4820764 (1989-04-01), Guzy et al.
patent: 4913234 (1990-04-01), Bodine
patent: 4914160 (1990-04-01), Aziaian
patent: 5090497 (1992-02-01), Beimgraben et al.
patent: 5171138 (1992-12-01), Forrest
patent: 5171139 (1992-12-01), Underwood et al.
patent: 5417281 (1995-05-01), Wood et al.
patent: 5620313 (1997-04-01), Fockenberg
patent: 5759109 (1998-06-01), Martini
patent: 5912303 (1999-06-01), Nakahama et al.
patent: 6183226 (2001-02-01), Wood et al.
patent: 6191510 (2001-02-01), Landin et al.
patent: 6251493 (2001-06-01), Johnson et al.
patent: 2058080 (1997-11-01), None
patent: 32 26 081 (1983-12-01), None
patent: 123837 (1919-03-01), None
patent: 2297092 (1996-07-01), None
patent: WO 01/77185 (2001-10-01), None
Internet: http://www.zeon.co.jp/business_e/enterprise/rubber/rubber_nbr.html; note “Nipol (RTM) NBR” (Medium High Nitrile Rubber); type N32 has ACN 33.5% and Mooney viscosity of 46%, type N33 has 33.5% and Mooney viscosity of 51%.
Internet: http://www.nantex.com.tw/e/p07-06-07.html; note eg Nancar (RTM) 1052 has ACN 33% and Mooney viscosity of 52 and Nancar (RTM) 3645 has ACT 36% and Mooney viscosity of 45.
Internet: http://www.astlettrubber.com/pdf/sr
brb6250.pdf; note NBR B6250 eg for “oil field products” has ACN 34% and Mooney viscosity of 50.
Internet: http://www.nitriflex.com.br/eng/template.asp?pag=produtos_01_01; note Nitriflex (RTM) N-685 has ACN 33% and Mooney viscosity of 50.
Internet: http/www.rubber.bayer.de/english/wgrp/prod-dat/fke/over3al.htm; note Bayer AG Krynac (RTM) and Perbunan (RTM) rubbers, eg Krynac 34.50 (33% ACN, 45±5 Mooney); Krynac VP KA 8699 (33% ACN, 45±7 Mooney), Perbunan NT 3445 (34±1% ACN, 45± Mooney); Perbunan NT 3446 (34.7±1% ACN, 45-35 Mooney); Perbunan NT 34.45 S (34% ACN, 45±5 Mooney).
Internet: https://www.rubber.bayer.com/bro/literature.nsf/0/F09AB725918C533 4C1256BE2002E8C92/$File/34381.pdf?Open Element; note NB Bayer Therban (RTM) VP KA 8837 (34% ACN, 55 Mooney); Therban (RTM) HT VP KA 8805 (34% ACN, 45 Mooney).
Great Britain Search Report, Examiner John Twin; dated Jul. 21, 2003.
Annual Book of ASTM Standards; “Standard Test Method for Rubber Property-Effect of Liquids1”; Last previous edition D471-95; pp. 86-96.
Annual Book of ASTM Standards; “Standard Test Methods for Rubber-Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics(Mooney Viscometer)1”; Last previous edition D1646-96; pp. 313-322.
Annual Book of ASTM Standards; “Standard Test method for Rubber Property—Durometer Hardness1”; Last previous edition D2240-91, pp.400-403.
Alicia Dalton; “Advanced Smart Drilling Systems”; Deep Trek Workshop; Presented at the Hotel Sofietel; Houston, Texas; Mar. 20-21, 2001; pp. i-32.
DSM; “DSM Elastomers”; www/dsmna.com/companies/copolymer.html; Oct. 3, 2001; 1 page.
Bayer Therban (RTM) brochure: https://www.rubber.bayer.com/bro/literature.nsf/0/F09AB725918C5334C1256BE2002E8C92/$File/34381.pdf?OpenElement; see eg the table on p. 6 and the diagram at the top of p. 9.
Fish & Richardson P.C.
Halliburton Energy Service,s Inc.
Vrablik John J.
LandOfFree
Stator for down hole drilling motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stator for down hole drilling motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stator for down hole drilling motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3507126