Jun 22, 2010 - For example, for a ?ight from New York City to London, most of the trip is over the Atlantic ocean, and t
USO0RE41381E
(19) United States (12) Reissued Patent
(10) Patent Number:
Stabile et a]. (54)
(45) Date of Reissued Patent:
METHOD OF CALCULATING OXYGEN REQUIRED AND SYSTEM FOR
“EASy Flight Deck Improves HoW Pilots Manage Aircraft’s Systems and its Flight”, Dassault Falcon Aircraft, Press Release, Feb. 22, 2005, pp. 143*
Inventors: James R. Stabile, c/o Aeronautical Data Systems, Inc., PO. Box 63, StillWater, NJ (Us) 07875; William L- Mack, 0/0 Aeronautical Data Systems, Inc, P0 Box 63, StillWater, NJ (US) 07875
(Continued)
Primary ExamineriRob SWiatek (74) Attorney, A gem, 0r FirmiBradley N. Ruben
(57)
(21) APP1~ NOJ 10/460,704 22
(
)
13-1 (12 16
J
Patent NO;
6,244,540
Issued,
Jun_ 12 2001
pressurized oxygen supply Which feeds oxygen into the inte rior of the plane When it ?ies at high cabin altitudes, the system indicating the changing status of the supply as oxy gen is drained therefrom. The system includes a pressure transducer coupled to the supply and means associated With the transducer to determine the lapse rate at Which the pres
Appl_ No; Filed,
09/630,212 Aug 1, 2000
sure of the supply is reduced as oxygen is drained therefrom to yield a ?rst signal representing this pressure lapse rate,
Related US Patent Documents
and to concurrently determine the lapse rate at Which the number of liters of oxygen in the supply is reduced as oxy gen is drained therefrom to yield a second signal represent ing the liter lapse rate. These signals are applied to a micro processor in Whose data base is entered the total oxygen
U.S. Applications: (63)
Continuation-in-part of application No. 09/080,187, ?led on May 18, 1998, now abandoned.
(51)
(52) (58)
ABSTRACT
A system useable in a jet aircraft having installed therein a
_ 12 2003 ml ’
Reissue of,
(64)
Jun. 22, 2010
OTHER PUBLICATIONS
MONITORING OXYGEN SUPPLY AND/OR CALCULATING FLIGHT LEVEL AFTER EMERGENCY CABIN DECOMPRESSION (76)
US RE41,381 E
Int. Cl. B64D 13/02
US. Cl. ................................... .. 244/118.5; 244/194 Field of Classi?cation Search .............. .. 244/76 R,
inventory of the supply and the oxygen demand of the plane in Which the supply is installed. When oxygen is being drained from the supply, the microprocessor calculates and reads out the prevailing supply pressure, the number of liters remaining in the supply, and the time in hours and minutes
244/1185, 175, 194, 78, 118.1, 136; 701/99 See application ?le for complete search history.
remaining before the supply is exhausted based on the cur rent rate of oxygen consumption.
(56)
(2006.01)
References Cited
The invention provides both a method for calculating the
U.S. PATENT DOCUMENTS
oxygen required, as Well as a real time monitoring and cal
2,894,193 A
culating system for emergency conditions. The invention is applicable to any pressurized gas system, such as for divers,
7/1959 Reitman
compressed gas cooking or vehicles, therapeutic oxygen,
(Continued)
and the like.
FOREIGN PATENT DOCUMENTS EP GB
0 324 259 694750
7/1989 7/1953
17 Claims, 15 Drawing Sheets
PRESSURE'TO-LITERS MODULE
""1
Emil is] 14
IwEmmE
v14 cmmsmn
v24 cwsnsma
51/‘
62/‘
TEMPERATURE
mssmt
LITERS
j LAPSE-MTEHDDJLE
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22 canon —¢{
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US RE41,381 E Page 2
US. PATENT DOCUMENTS
* 11/2000 McElreath et a1. ........ .. 340/970
6,161,063 A * 12/2000 6,188,937 B1 * 2/2001
*
3,842,720 A
* 10/1974 Herr .......................... .. 454/71
6,244,540 B1 *
6/2001
stabile et a1,
3,851,304 A 3,864,025 A
* 11/1974 * 2/1975
6,507,776 B1 *
1/2003
FOX,111 ..................... .. 701/11
3,922,149 A
* 11/1975 Ruder et a1.
Picardat .................... .. 340/980 Picardat .................... .. 359/630
Deck Tools for distributed air ground decision mak_
2?“ et al'l
’
6720/
me et a ' I """"""" "
5,086,396 A
*
2/1992
WarusZeWskl, Jr.
5,346,778 A
*
9/1994
Ewan et a1. ..... ..
*
5,544,842 A *
5,574,647 A
ing in future ATM”, Human Information Process Research Branch, (no date), Battiste, V. & Johnson W., pp. 1 of 1.*
....... .. 701/221
“
429/19
“
5,367,901 A * 11/1994 Petersen .................. .. 73/64.45 5,516,330 A
244/118,5
OTHER PUBLICATIONS
9/1976 W111121II1S ............. ..
i * ’
Culbertson --------------- -- 137/811
Deker .......................... .. 701/4 Sherryetal. ................ .. 701/14
2,974,673 A
3,981,300 A :
3/1961
6,154,151 A
5/1996 Dechow et a1. ............. .. 454/74
8/1996 Smith et a1. ............... .. 244/1 R
11/1996 Liden
G1ass Cockp1t- 1.,, ,AnsWers.com, (no date), pp.d1*3. * hn 1 . h . ,, Tee
0 OgYF 1eS*H1g °nB°e1ng737 ssan YAngerS>PP
155061252003
“Integrated Human Centered Systems Approach to the
Development of Advanced Air Tra?ic Management Sys
5,590,852 A *
1/1997 Olson .................... .. 244/118.5
terns”;
5,606,505 A
2/1997
atmeseminare97.eurocontro1.fr/hansman.htm.*
*
Smith et a1~ -
~~~~ ~~ 701/99
5,791,982 A
*
8/1998 Curry et a1. ................. .. 454/74
5,809,999 A
*
9/1998
5,934,083 A
*
8/1999 Scherer et a1. ............... .. 62/79
Hansman,
John;
May
5,
1998,
The Boeing 7571200 (WWWbOeingCOm) pp 1148
Lang ................... .. 128/200.24
* cited by examiner
http://
US. Patent
Jun. 22, 2010
Sheet 1 or 15
US RE41,381 E
FIG. 1
Fiéféikééihiédlbé' 1/11 ‘- - - - — - ~ ¢ -
- ~ - - . . --.|
12
‘ ['10 OXYGEN my
K .T PRESSURE TRANSDUCER __,H
1
v14
TEMP- (“085 14
; 15
L v22);
TEMPERATURE
CUHPENSAIUR
TEMPERATURE
51/1
82/‘
COHPENSATOR
PREssuRE
LIIERS
LAPSE-RATE MODULE
LRPsE-RATE RowLE
53/ L1/1 22\ cu ROM
PRESSUSE-TTLTELITERS /13
-
TR HIBBUPROCESSOR
'11
_/15
/ 1B
2) T- KEYBOARD
US. Patent
Jun. 22, 2010
Sheet 2 or 15
US RE41,381 E
FIG. 2 PRESSURE TEMPERATURE CONVERSION CHART SETTLEO TEMPERATURE
BOTTLE PRESSURE
NTPO
17
CONDITION: THIS TABLE IS BASED ON THE OXYGEN SYSTEH BEING FILLEO TO 1850 psi AT AN AMBIENT BOTTLE TEMPERATURE OF 70 DEGREES FAHRENHEIT NTPO (NATIONAL TEWERATURE PRESSURE DRY]
US. Patent
Jun. 22, 2010
Sheet 3 0f 15
US RE41,381 E
FIG . 3 A
Lhmuaodgonmwnw?hmukmvhd; cum “mum;
1
z
a
4
s
a
7
a
(FEET)
(Hr)
(HRS)
(HRS)
(HRS)
(HRS)
(HRS)
(HRS)
(HRS)
5M0
247
493
740
986
1233
1480
1720
1973
6000
225
450
B75
000
115
1350
1575
11m
7000
210
420
830
840
1050
1250
1470
“I0
0000
174
348
m
696
870
1044
1218
1392
0000
154
307
481
614
76.
922
‘I075
129
10000
132
264
396
528
660
m
924
1055
Tharapautic Oxygen up M No. PAX
1 (HR)
1
2
0
"X may“
2 ("33)
3 (HR-51
4 (“ml
5 (HRS)
5 (P55)
7 ("35)
O
0
0
D
0
0
0
0
0
0
0
O
US. Patent
Jun. 22, 2010
Sheet 4 0f 15
US RE41,381 E
FIG. 4 OXYGEN INVENTORY
TWO 115 CUBIC FOOT BOTTLES PRESSURE (PSI)
CAPACITY (LITERS)
1850 1300 1150 1100 1650 1600 1550 1500 1450 1400 1350 1300 1250 1200 1150
6509 6333 6151 5931 5305 5629 5453 5213 5102 4926 4150 4514 .4393 4222 4046
1100
3310 -
1050 1000 950 900 350
3694 3513 3342 3161 2991
1100v
'
150 100
2639 .
2463
650 600 550 500 450
2815
22111 2111 1935 1159 ,
1533
- 400
1401
350
1231
300
w
1056
250
830
200-
104
US. Patent
Jun. 22, 2010
Sheet 5 0f 15
FIG. 5A J\
OXYGEN DURATION FLIGHT LEVEL 250
NTPD
LTRS
CREW SYSTEM
1050 1000 1700 1500 1500 1400 1300 1200 1100
1415 1377 1300 1224 1147 1071 994 91B 041
2:41 2:35 2:20 2: 19 2: 10 2:01 1:53 1: 44 1:35
1000
755 5
1:27
900
600
1: 1B
B00
612
1:09
700
535
1:00
600
459
:52
500 400 300
982 306 229
:43 :34 :26
200
153
: 17
CREW
2
REDUCTION TO 02 INVENTORY ELIHB T0 FL. 250 311 REDUCTION
US RE41,381 E
US. Patent
Jun. 22, 2010
Sheet 6 0f 15
FIG. 5B /\
OXYGEN DURATION FLIGHT LEVEL 200
NTPD
LIBS
CHEN SYSTEM
1950 1900 1700 1600 1500 1400 1300 1200 1100 1000 900 000 700 500 500 400 300 200
1415 1377 1300 1224 1147 1071 994 918 B41 755 500 512 535 459 382 305 229 153
3:30 3:32 3:20 3:00 2:57 2:45 2:33 2:21 2:09 1:50 1:45 1:34 1:22 1: 10 :59 .47 :35 23
CREW
2
REDUCTION TO 02 INVENTORY CLINB TO FL. 200 290 REDUCTION
US RE41,381 E
US. Patent
Jun. 22, 2010
Sheet 8 or 15
US RE41,381 E
. .. . . . . ._. .
