Patent EP0359883A1 successfully refreshed from Google Patents.
EP0359883A1
Expired / Lapsed
EP
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Hand files
Assignee: Individual
•
Filing: 1988-09-23
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Granted: —
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Expires: 2008-09-23
Abstract
Abstract A hand file is made from a coiled spring, the flattened outer peripheral surface (1a′) of which is coated with particles of abrasive (3) so as to form a file face (1b, 1b′). In a first arrangement of the file (A), the coiled spring having the file face coated with the abrasive particles is joined to the tip of a hand grip (2). In a second arrangement (A′), the coiled spring having the file face coated with the abrasive particles is of considerable length and thus used portions thereof can be removed by cutting or breaking off.
Inventors
- 👤 Nobuo Ishihara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 06:33
CPC Classifications
B; B23; B23D; B23D73/00; B23D73/04; B23D71/00; B23D71/04; B24; B24D; B24D15/00; B24D15/04; Y; Y10; Y10T; Y10T407/00; Y10T407/18; Y10T407/1805
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
37 words
A hand file (A, A′) having a file face (1b, 1b′), characterized in that the file face is formed by coating the flattened surface (1a′) of the body (1) of a coiled spring with abrasive particles (3).
Claim 2
Dependent Claim
37 words
A hand file (A, A′) having a file face (1b, 1b′), characterized in that the file face is formed by coating the flattened surface (1a′) of the body (1) of a coiled spring with abrasive particles (3).
Claim 3
Dependent Claim
35 words
A file as claimed in claim 1, characterized in that the body (1) of the coiled spring, having the file face (1b) formed thereon, is directly held in the tip of a hand grip (2).
Claim 4
Dependent Claim
51 words
A file as claimed in claim 1, characterized in that the coiled spring is of considerable length having the file face (1b′) coated with the abrasive particles (3), and in that in use the used portions of the body (1) of the coiled spring are capable of being successively broken off.
Claim 5
Dependent Claim
24 words
A file as claimed in any one preceding claim, characterized in that the body (1) of the coiled spring is generally rounded in cross-section.
Claim 6
Independent Claim
42 words
A method of manufacturing a hand file (A, A′) characterized by the steps of: (i) flattening the wave-shaped convex outer peripheral surface of a coiled spring; and (ii) attaching abrasive particles to the flattened surface so as to form the file face.
Claim 7
Independent Claim
42 words
A method of manufacturing a hand file (A, A′) characterized by the steps of: (i) flattening the wave-shaped convex outer peripheral surface of a coiled spring; and (ii) attaching abrasive particles to the flattened surface so as to form the file face.
References Cited (Backward Citations)
FR658818A
Cited
US2309456A
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US2687561A
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US2714790A
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US3774355A
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US3956858A
Cited
DE2950591A1
Cited
JPS63156614A
Cited
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