Patent US2187487A successfully refreshed from Google Patents.
Patent US3850656A successfully refreshed from Google Patents.
US3850656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typing error correction system
Assignee: Individual
•
Filing: 1972-04-14
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Granted: 1974-11-26
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Expires: 1992-04-14
Abstract
Abstract In a typing error correction system, typing error correction fluid is sprayed from an aerosol spray assembly through an aperture in a mask and onto a typing error. The mask comprises a portion of a spray discharge assembly that receives and supports the aerosol spray assembly. A discharge head mounted in the spray discharge assembly actuates the aerosol spray assembly upon movement of the aerosol spray assembly into the spray discharge assembly, and includes a normally sealed spray discharge passageway which is opened to permit discharge of the spray. A reticular foam collar mounted in the spray discharge assembly absorbs spurious spray, and a viewing port formed through the spray discharge assembly facilitates alignment of the aperture in the mask with a typing error.
Inventors
- 👤 W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:29
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
A METHOD OF APPLYING A PREDETERMINED AMOUNT OF MATERIAL COMPRISING A CORRECTION FLUID TO A PREDETERMINED AREA OF A SURFACE HAVING A COTYPING ERROR CONTAINED THEREIN AND THEREBY CORRECTING THE ERROR WHICH COMPRISES: POSITIONING AN APERTURE FORMED THROUGH A MASK IN ALIGNMENT WITH THE PREDETERMINED AREA OF THE SURFACE HAVING THE TYPING ERROR CONTAINED THEREIN; THEREAFTER DISCHARGING A METERED QUANTITY OF THE MATERIAL COMPRISING A CORRECTION FLUID FROM AN AEROSIL CONTAINER THEREOF ACROSS AN OPEN SPACE SEPARATING THE CONTAINER AND THE MASK TOWARD THE APERTURE IN THE MASK SO THAT THE PREDETERMINED AMOUNT OF THE MATERIAL PASSES THROUGH THE APERTURE AND ONTO THE PREDETERMINED AREA AND THE REMAINDER OF THE METERED QUANTITY OF THE MATERIAL IS RETAINED; AND
Claim 2
Independent Claim
118 words
A METHOD OF APPLYING A PREDETERMINED AMOUNT OF MATERIAL COMPRISING A CORRECTION FLUID TO A PREDETERMINED AREA OF A SURFACE HAVING A COTYPING ERROR CONTAINED THEREIN AND THEREBY CORRECTING THE ERROR WHICH COMPRISES: POSITIONING AN APERTURE FORMED THROUGH A MASK IN ALIGNMENT WITH THE PREDETERMINED AREA OF THE SURFACE HAVING THE TYPING ERROR CONTAINED THEREIN; THEREAFTER DISCHARGING A METERED QUANTITY OF THE MATERIAL COMPRISING A CORRECTION FLUID FROM AN AEROSIL CONTAINER THEREOF ACROSS AN OPEN SPACE SEPARATING THE CONTAINER AND THE MASK TOWARD THE APERTURE IN THE MASK SO THAT THE PREDETERMINED AMOUNT OF THE MATERIAL PASSES THROUGH THE APERTURE AND ONTO THE PREDETERMINED AREA AND THE REMAINDER OF THE METERED QUANTITY OF THE MATERIAL IS RETAINED; AND
Claim 3
Dependent Claim
33 words
The method of applying a predetermined amount of material according to claim 1 further characterized by the step of collecting overspray in a body of foam material encircling the aperture in the mask.
Claim 4
Dependent Claim
49 words
The method of applying a predetermined amount of material according to claim 1 further characterized by discharging the material from the aerosol container through a discharge passageway and by normally sealing the end of the discharge passageway remote from the aerosol container except during the discharge of material therethrough.
Claim 5
Dependent Claim
54 words
The method of applying a predetermined amount of material according to claim 1 wherein the mask further comprises a housing which receives the aerosol container, and wherein the step of discharging a metered quantity of the material is carried out in response to relative movement of the aerosol container with respect to the housing.
Claim 6
Independent Claim
88 words
A method of correcting typing errors comprising: positioning an aperture in a mask in alignment with an error to be corrected; thereafter discharging a metered quantity of a correction fluid comprising an opaque liquid from an aerosol container thereof toward the mask so that a predetermined amount of correction fluid passes through the aperture in the mask and onto the error to be corrected, thereby covering the error; and thereafter drying the material to form an opaque layer covering the error and characterized by a smooth surface finish.
Claim 7
Independent Claim
88 words
A method of correcting typing errors comprising: positioning an aperture in a mask in alignment with an error to be corrected; thereafter discharging a metered quantity of a correction fluid comprising an opaque liquid from an aerosol container thereof toward the mask so that a predetermined amount of correction fluid passes through the aperture in the mask and onto the error to be corrected, thereby covering the error; and thereafter drying the material to form an opaque layer covering the error and characterized by a smooth surface finish.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |