{"search_session":{},"preferences":{"l":"en","queryLanguage":"en"},"patentId":"US_7323683_B2","frontPageModel":{"patentViewModel":{"ref":{"entityRefType":"PATENT","entityRefId":"135-120-109-649-244"},"entityMetadata":{"linkedIds":{"empty":true},"tags":[],"collections":[{"id":10709,"type":"PATENT","title":"Rockefeller University Patent Portfolio","description":"","access":"OPEN_ACCESS","displayAvatar":true,"attested":false,"itemCount":4213,"tags":[],"user":{"id":91044780,"username":"Cambialens","firstName":"","lastName":"","created":"2015-05-04T00:55:26.000Z","displayName":"Cambialens","preferences":"{\"usage\":\"public\",\"beta\":false}","accountType":"PERSONAL","isOauthOnly":false},"notes":[{"id":8226,"type":"COLLECTION","user":{"id":91044780,"username":"Cambialens","firstName":"","lastName":"","created":"2015-05-04T00:55:26.000Z","displayName":"Cambialens","preferences":"{\"usage\":\"public\",\"beta\":false}","accountType":"PERSONAL","isOauthOnly":false},"text":"
Search Applicants and Owners separately: \"Rockefeller University\"; \"Univ* Rockefeller\"; \"Univ* Rockef*\"
Select more for logical variants. Add to collection. Select all patents in the collection and expand by simple families. Add to collection. Total patents: 4020
Search Applicants and Owners separately: \"Rockefeller University\"; \"Univ* Rockefeller\"; \"Univ* Rockef*\"
Select more for logical variants. Add to collection. Select all patents in the collection and expand by simple families. Add to collection. Total patents: 4020
storing ions in the ion trap;\n
spatially compressing the ions in a mass-to-charge ratio dependent manner; and\n
ejecting the spatially compressed ions in a defined range of mass-to-charge ratios."],"number":1,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 1, wherein the ions are stored along a length of the ion trap."],"number":2,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 1, wherein the stored ions are cooled by collisions with molecules or atoms in a buffer gas."],"number":3,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 1, wherein the spatially compressed ions are ejected sequentially in accordance with their mass/charge ratios."],"number":4,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 1, further comprising providing a stronger quadrupole electric field at a first end of the ion trap than at a second end of the ion trap, wherein said spatially compressing comprises compressing the ions toward the second end."],"number":5,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 5, wherein said ejecting comprises ejecting the spatially compressed ions from a region in the second end."],"number":6,"annotation":false,"title":false,"claim":true},{"lines":["A method according to claim 1, further comprising injecting the ions into the ion trap."],"number":7,"annotation":false,"title":false,"claim":true},{"lines":["The method of claim 7, wherein said injecting comprises injecting the ions parallel to an axis of the ion trap."],"number":8,"annotation":false,"title":false,"claim":true},{"lines":["The method of claim 7, wherein said injecting comprises injecting the ions orthogonally to an axis of the ion trap."],"number":9,"annotation":false,"title":false,"claim":true},{"lines":["The method of claim 1, wherein said ejecting comprises ejecting the ions parallel to an axis of the ion trap."],"number":10,"annotation":false,"title":false,"claim":true},{"lines":["The method of claim 1, wherein said ejecting comprises ejecting the ions orthogonally to an axis of the ion trap."],"number":11,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap comprising:\n
an injection port for introducing ions into the ion trap;\n
an arm comprising:\n\na first end and a second end; and\ntwo pairs of opposing electrodes between the first end and the second end for confining the injected ions;\neach electrode having an interior surface suitably shaped for providing a quadrupole electric field potential at any cross-section of the ion trap;\nthe distance between each opposing electrode increasing from the first end to the second end, whereby ions selected for ejection are spatially compressed into a region at the second end; and\n
an ejection port for ejecting the spatially compressed ions from the second end of the arm of the ion trap."],"number":12,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap according to claim 12, wherein the first end and the second end are positioned and dimensioned so that a stronger quadrupole electric field is capable of being provided at the first end than at the second end."],"number":13,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, further comprising:\n
a second arm, the second arm comprising:\n"],"number":14,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 14, further comprising:\nan additional first end and an additional second end; and\na second two pairs of opposing electrodes between the additional first end and additional second end.\n
a central insert comprising a central two pairs of opposing electrodes, one of the central electrodes comprising the ejection port, wherein the opposing electrodes in the central insert are substantially parallel, and further wherein the second end of the arm and the additional second end of the second arm are operatively connected to either side of the central insert."],"number":15,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 14, wherein a distance between each second opposing electrode increases from the additional first end of the second arm to the additional second end."],"number":16,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein a cross-sectional area of each electrode increases toward its second end."],"number":17,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein a cross section of each electrode defines a hyperbola, the interior surface of each opposing electrode comprising an inwardly curved profile."],"number":18,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 18, wherein an acuteness of the hyperbola decreases from the first end toward the second end."],"number":19,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein a cross section of each electrode comprises at least a fraction of a circle, the interior surface of each opposing electrode forming an arc of the circle, and wherein the circle is centered at a point external to an interior area of the ion trap between the two pairs of opposing electrodes."],"number":20,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein a cross-section of each electrode defines a parabola, the interior surface of each opposing electrode comprising an inwardly curved profile, further wherein an acuteness of the parabola increases from the second end toward the first end."],"number":21,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein the injection port is suitably positioned to inject ions parallel to an axis of the ion trap."],"number":22,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein the injection port is suitably positioned to inject ions orthogonally to an axis of the ion trap."],"number":23,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein the ejection port is suitably positioned to eject ions substantially parallel to a direction of injection of the ions."],"number":24,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein the ejection port is suitably positioned to eject ions orthogonally to a direction of injection of the ions."],"number":25,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 12, wherein the arm has a minimum length of 1 millimeter and a maximum length of 1000 millimeters."],"number":26,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 14, wherein the central insert has a minimum length of 1 millimeter and a maximum length of 1000 millimeters."],"number":27,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap according to claim 14, wherein the second arm has a minimum length of 1 millimeter and a maximum length of 1000 millimeters."],"number":28,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap comprising:\n
two pairs of opposing electrodes, each pair being separated by a distance equal to twice an effective radius R of an electric field potential U(x,y,z); and\n
a length L,\nwherein the two pairs of opposing electrodes are shaped to satisfy an equation (1) within the length L, the equation (1) being provided as follows:\nU(x,y,z)=U0(x2-y2R2)+C,(1)\nfurther wherein the effective radius R varies as a function of a variable length z, the length L being measured along the z-axis, according to\nR=r01+kz/L,(2)\nwherein the constants k, C and r0, and additional constant U0 are dimensioned to satisfy the equation (1) of the electric field potential for the chosen boundary condition."],"number":29,"annotation":false,"title":false,"claim":true},{"lines":["An ion trap comprising:\n
an injection port for introducing ions into the ion trap;\n
a length L along which injected ions are stored, the length L being measured along a z-axis;\n
an arm comprising two pairs of opposing electrodes extending the length L and suitably shaped to confine the injected ions,\n
wherein each pair of opposing electrodes is separated by a distance 2R, wherein R varies as a function of the variable z, the two pairs of opposing electrodes comprising a larger end and a smaller end, whereby ions selected for ejection are compressed toward the larger end; and\n
an ejection port for ejecting the selected ions from the larger end."],"number":30,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 30, wherein each of the electrodes comprises a hyperbolic cross-sectional shape."],"number":31,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 31, wherein the eccentricity of the hyperbolic cross-section increases toward the smaller end."],"number":32,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 30, wherein each of the electrodes comprises a circular cross-sectional shape."],"number":33,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 33, wherein each of the electrodes is tapered and further wherein the circular cross-section of diameter D at each value 2R along the length satisfies an equation:\n
\n\nD=1.148×2R. (4)\n"],"number":34,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 30, wherein R corresponds to an effective radius R of an electric field potential U(x,y,z) and varies according to\nR=r01+kz/L,(2)\nwhere k and r0 are constants determined according to chosen boundary conditions for the electric field potential U(x,y,z)."],"number":35,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 35, wherein the two pairs of opposing electrodes are shaped to satisfy an equation (1) within the length L, and wherein the constants k, C and r0, and additional constant U0 are dimensioned to satisfy the equation (1) of the electric field potential for the chosen boundary conditions, the equation (1) being provided as follows:\nU(x,y,z)=Uo(x2-y2R2)+C.(1)"],"number":36,"annotation":false,"title":false,"claim":true},{"lines":["The ion trap of claim 30, wherein ions are selected for ejection according to a range of mass-to-charge ratios."],"number":37,"annotation":false,"title":false,"claim":true},{"lines":["An ion mass spectrometer comprising the ion trap of claim 37."],"number":38,"annotation":false,"title":false,"claim":true}]}},"filters":{"npl":[],"notNpl":[],"applicant":[],"notApplicant":[],"inventor":[],"notInventor":[],"owner":[],"notOwner":[],"tags":[],"dates":[],"types":[],"notTypes":[],"j":[],"notJ":[],"fj":[],"notFj":[],"classIpcr":[],"notClassIpcr":[],"classNat":[],"notClassNat":[],"classCpc":[],"notClassCpc":[],"so":[],"notSo":[],"sat":[]},"sequenceFilters":{"s":"SEQIDNO","d":"ASCENDING","p":0,"n":10,"sp":[],"si":[],"len":[],"t":[],"loc":[]}}