US4081304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallizing process and apparatus for applying metal sheet onto variously shaped ledges or frames
Assignee: Individual
•
Filing: 1976-04-21
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Granted: 1978-03-28
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Expires: 1996-04-21
Abstract
Abstract A process and an apparatus for metallizing wooden ledges, such as frames, with a curved cross section. The cross-section is first subdivided into a plurality of tracts each encompassing a straight or only slightly curved portion of the periphery. The tracts should intersect at least at the center of the more curved areas such as those having acute angled portions or concavities. A number of metallized tapes equal to the number of such tracts are then applied longitudinally with a slight overlap between adjacent strips.
Inventors
- 👤 Duilio Bruseschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:17
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/10; B44C1/14; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1089; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49906; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
215 words
A metallizing process for covering ledges having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, comprising: preparing for metallization the surface to be metallized, said surface being the surface of a ledge having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction; determining the locations of a plurality of longitudinally extending subdivisions of the surface of a transverse cross-section of the ledge, wherein each of said subdivisions encompasses a straight or slightly curved tract of the surface of the transverse cross-section of the ledge, and the lines of longitudinal intersection of adjacent subdivisions are disposed at least at the center of each area of substantial curvature of the surface of the transverse cross-section of the ledge including the center of each said concavity of substantial curvature; and applying a plurality of metallizing tapes in the longitudinal direction of the ledge, the number of said tapes being equal to the number of subdivisions, the point of application of each of said tapes being juxtaposed longitudinally along the ledge, wherein each pair of adjacent tapes are slightly overlapping.
Claim 2
Dependent Claim
215 words
A metallizing process for covering ledges having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, comprising: preparing for metallization the surface to be metallized, said surface being the surface of a ledge having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction; determining the locations of a plurality of longitudinally extending subdivisions of the surface of a transverse cross-section of the ledge, wherein each of said subdivisions encompasses a straight or slightly curved tract of the surface of the transverse cross-section of the ledge, and the lines of longitudinal intersection of adjacent subdivisions are disposed at least at the center of each area of substantial curvature of the surface of the transverse cross-section of the ledge including the center of each said concavity of substantial curvature; and applying a plurality of metallizing tapes in the longitudinal direction of the ledge, the number of said tapes being equal to the number of subdivisions, the point of application of each of said tapes being juxtaposed longitudinally along the ledge, wherein each pair of adjacent tapes are slightly overlapping.
Claim 3
Dependent Claim
23 words
A process in accordance with claim 1, wherein said tapes are applied in progression from one side of the ledge, viewed in cross-section.
Claim 4
Dependent Claim
64 words
A process in accordance with claim 1, wherein said applying step comprises pressing each tape against the surface to be covered with a pressing roller having a width at least equal to that of the tape, whereby the tape is forced to pass between the pressing roller and the ledge so that the metal tape sticks to the surface to be metallized by adherence.
Claim 5
Dependent Claim
53 words
A process in accordance with claim 3, wherein during said pressing step the tape is made to conform to the shape of the subdivision of the ledge being metallized by means of pressing roller having a surface which is elastically deformable to assume the shape of the surface against which it is pressed.
Claim 6
Dependent Claim
55 words
A process in accordance with claim 1, wherein the metallizing tapes each include a layer of support material which must be removed after application, further including braking the feed of said tape to control the tension therealong and winding the support material around a roller after the metallized tape has been applied to the ledge.
Claim 7
Dependent Claim
62 words
A process in accordance with claim 1, wherein the metallizing tapes each include a layer of metallic material and a layer of support material which must be removed after application of the metallic material to the ledge, further including aspirating the support material into an intake opening of a flexible suction pipe after the metallic material has been applied to the ledge.
Claim 8
Dependent Claim
24 words
A process in accordance with claim 1, further including conveying the ledge longitudinally past each of the application points, which application points are stationary.
Claim 9
Dependent Claim
27 words
A process in accordance with claim 1, further including smoothing the surfaces covered with metal, after said applying steps, with rollers of cotton or similar deformable material.
Claim 10
Independent Claim
181 words
An apparatus for metallizing ledges having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, comprising: a plurality of application means, each for applying a metallizing tape in the longitudinal direction of a ledge having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, said application means being disposed about the periphery of the ledge, longitudinally offset from one another, such that the strip of tape applied by each, when viewed along the surface of a transverse cross-section of the ledge, encompasses a straight or slightly curved tract of the surface of the transverse cross-section of the ledge, and the longitudinal intersection of adjacent strips of tape are slightly overlapping and disposed at least at the center of each area of substantial curvature on the surface of the transverse cross-section of the ledge including the center of each said concavity of substantial curvature.
Claim 11
Independent Claim
181 words
An apparatus for metallizing ledges having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, comprising: a plurality of application means, each for applying a metallizing tape in the longitudinal direction of a ledge having a transverse cross-section including areas of substantial curvature, and more particularly including at least one concavity of substantial curvature, and a substantially constant shape in the longitudinal direction, said application means being disposed about the periphery of the ledge, longitudinally offset from one another, such that the strip of tape applied by each, when viewed along the surface of a transverse cross-section of the ledge, encompasses a straight or slightly curved tract of the surface of the transverse cross-section of the ledge, and the longitudinal intersection of adjacent strips of tape are slightly overlapping and disposed at least at the center of each area of substantial curvature on the surface of the transverse cross-section of the ledge including the center of each said concavity of substantial curvature.
Claim 12
Dependent Claim
45 words
An apparatus in accordance with claim 9, wherein each of said application means includes a pressing roller, having a width at least equal to that of the tape, for pressing the tape onto the subdivision of the surface to be metallized by that application means.
Claim 13
Dependent Claim
40 words
An apparatus in accordance with claim 10, wherein said pressing rollers are elastically deformable to assume the shape of the surface against which it is pressed, so conforming also the metallizing tape which is made to adhere to the surface.
Claim 14
Dependent Claim
30 words
An apparatus in accordance with claim 10, wherein said pressing rollers comprise sponge gum whose central core is expanded while the annular outer surface is smooth and compact although elastic.
Claim 15
Dependent Claim
99 words
An apparatus in accordance with claim 9, wherein the metallizing tape includes a layer of metal and a layer of support material and wherein each of said application means comprises: a tape roll holder; braking means for adjustably braking said tape roll holder; at least one deformable pressing roller; and take-up means for taking up the support material after said pressing roller has caused the metal layer to adhere to the respective portion of the ledge, said take-up means comprising a flexible aspirator pipe for sucking the support material into an intake opening at the extremity of said pipe.
Claim 16
Dependent Claim
30 words
An apparatus in accordance with claim 13, wherein said tape roll holder is mounted behind said pressing roller to increase the contact surface of the tape on said pressing roller.
Claim 17
Dependent Claim
38 words
An apparatus in accordance with claim 13, further including means for conveying the ledge past said application means and wherein said tape roll holder and said pressing roller rotate idly, the tape being advanced by the proceeding ledge.
Claim 18
Dependent Claim
45 words
An apparatus in accordance with claim 13, wherein said braking means comprises a pair of flanges on said tape roll holder on opposite sides of the tape roll, one of said flanges being stationary and the other of said flanges rotating with the tape roll.
Claim 19
Dependent Claim
51 words
An apparatus in accordance with claim 9, wherein each of said application means are mounted on a rotatable holding means which in turn is mounted on a means for shifting said holding means in the horizontal and vertical directions within the vertical plane perpendicular to the longitudinal axis of the ledge.
Claim 20
Dependent Claim
34 words
An apparatus in accordance with claim 9, further including a conveyor belt for conveying the ledge longitudinally past said application means, said belt having depressions at the position of each of said application means.
Claim 21
Dependent Claim
40 words
An apparatus in accordance with claim 9, further including a smoothing means positioned downstream of each of said application means for smoothing the surface covered with metallizing tape, said smoothing means comprising rollers of cotton or other similar deformable material.
Claim 22
Dependent Claim
13 words
An apparatus in accordance with claim 13, wherein the support material is paper.
Claim 23
Dependent Claim
13 words
An apparatus in accordance with claim 13, including two of said pressure rollers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |