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1. (US10131035) Surface finishing

Office : United States of America
Application Number: 14531221 Application Date: 03.11.2014
Publication Number: 10131035 Publication Date: 20.11.2018
Grant Number: 10131035 Grant Date: 20.11.2018
Publication Kind : B1
IPC:
B32B 3/00
B32B 3/26
B32B 3/30
B24C 1/08
B24C 1/00
B24C 11/00
B44C 1/22
C23F 1/02
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26
characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26
characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
30
characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
C
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
1
Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
08
for polishing surfaces, e.g. by making use of liquid-borne abrasives
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
C
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
1
Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
C
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
11
Selection of abrasive materials for abrasive blasts
B PERFORMING OPERATIONS; TRANSPORTING
44
DECORATIVE ARTS
C
PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
1
Processes, not specifically provided for elsewhere, for producing decorative surface effects
22
Removing surface-material, e.g. by engraving, by etching
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
1
Etching metallic material by chemical means
02
Local etching
CPC:
B24C 1/006
B24C 1/08
B24C 11/00
B32B 3/00
B32B 3/26
B32B 3/30
B44C 1/227
C23F 1/02
Y10S 24/00
Y10T 428/12736
Y10T 428/12896
Y10T 428/12993
Y10T 428/265
Y10T 428/266
Applicants: Apple Inc.
Inventors: Michael T. Brickner
Ian Davison
Wayne Cowan
Naiming Fu
Agents: Dorsey & Whitney LLP
Priority Data:
Title: (EN) Surface finishing
Abstract: front page image
(EN)

Grooves are formed on an exterior surface of a component. The grooves are formed proximate to one another such that the grooves diffract light. The exterior surface is processed to reduce the sharpness of peaks between the grooves, reduce differences between the peaks and valleys of the grooves, and/or roughen the grooves. The processing reduces diffraction caused by the grooves such that light reflected from the grooves is not substantially color-shifted (e.g., is or is near the color of the reflecting surface). In various implementations, the processing may include dry blasting, etching, abrasive blasting, burnishing, grinding, ablation, an/or any other process capable of reducing the sharpness, reducing the differences, and/or roughening the surface. In implementations where dry blasting is used, the dry blasting may use ceramic beads as a blast material.