GB2010127A - Powder distributing device for detecting fingerprints - Google Patents
Powder distributing device for detecting fingerprintsInfo
- Publication number
- GB2010127A GB2010127A GB7835136A GB7835136A GB2010127A GB 2010127 A GB2010127 A GB 2010127A GB 7835136 A GB7835136 A GB 7835136A GB 7835136 A GB7835136 A GB 7835136A GB 2010127 A GB2010127 A GB 2010127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- piezo
- reservoir
- mesh
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/057—Arrangements for discharging liquids or other fluent material without using a gun or nozzle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/117—Identification of persons
- A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
- A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
- B05B5/0531—Power generators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A powder distributer comprises a housing (10) having a reservoir (14) containing fingerprint dusting powder (22) which can be driven out through a mesh (20) under the action of an electric field between the reservoir and a surface suspected of containing fingerprints, said field being produced by a piezo-electric powered unit (28) incorporated into the housing with a squeeze grip actuator lever (32) for actuating the piezo-electric crystal. The mesh (20) is covered by a removable cover (24) or an apertured plate (38) having a movable member for closing off the apertures (40) in one portion. A rectifying circuit (37) is included for ensuring that the charge conveyed to the dusting powder (22) is of one polarity. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7835136A GB2010127A (en) | 1977-08-31 | 1978-08-31 | Powder distributing device for detecting fingerprints |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3640677 | 1977-08-31 | ||
GB7835136A GB2010127A (en) | 1977-08-31 | 1978-08-31 | Powder distributing device for detecting fingerprints |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2010127A true GB2010127A (en) | 1979-06-27 |
Family
ID=26263107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7835136A Withdrawn GB2010127A (en) | 1977-08-31 | 1978-08-31 | Powder distributing device for detecting fingerprints |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2010127A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128900A (en) * | 1982-10-29 | 1984-05-10 | Theoktiste Christofidis | Ionising spray |
FR2551364A1 (en) * | 1983-08-31 | 1985-03-08 | Brunet Philippe | Device for spraying cut textile fibres. |
RU2469647C2 (en) * | 2007-04-12 | 2012-12-20 | Нортгемптоншир Полис Оторити | Fingerprint detection |
CN104622477A (en) * | 2015-03-10 | 2015-05-20 | 黄大明 | Method and device for dipping fingerprint powder by using fingerprint brush |
-
1978
- 1978-08-31 GB GB7835136A patent/GB2010127A/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128900A (en) * | 1982-10-29 | 1984-05-10 | Theoktiste Christofidis | Ionising spray |
FR2551364A1 (en) * | 1983-08-31 | 1985-03-08 | Brunet Philippe | Device for spraying cut textile fibres. |
RU2469647C2 (en) * | 2007-04-12 | 2012-12-20 | Нортгемптоншир Полис Оторити | Fingerprint detection |
CN104622477A (en) * | 2015-03-10 | 2015-05-20 | 黄大明 | Method and device for dipping fingerprint powder by using fingerprint brush |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |