US PATENT SUBCLASS 65 / 36
.~ Fusion bonding of glass to a formed part

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

17.1  DF  PROCESSES {32}
36.~ Fusion bonding of glass to a formed part {12}
37  DF  .~.~> Lens making {2}
40  DF  .~.~> Dielectric or joule effect heating of work
41  DF  .~.~> With annealing or tempering of glass
42  DF  .~.~> Bonding of subassembly with subsequent assembly and bonding (formed parts only)
43  DF  .~.~> By or with coating at joint interface of a formed part prior to bonding
44  DF  .~.~> With embossing or corrugating
45  DF  .~.~> With glass part forming from shapeless molten glass {4}
54  DF  .~.~> With reshaping glass preform prior to assembly or subsequent to bonding {1}
56  DF  .~.~> With severing, perforating, or breaking of glass
57  DF  .~.~> Relative rotation of work and heating means
58  DF  .~.~> Of parts having opposed facing areas out of contact (e.g., building blocks)
59.1  DF  .~.~> Of glass to metal part {6}

DEFINITION

Classification: 65/36

(under subclass 17.1) Processes directed to fusion bonding of a glass part to another part of the same or different preform by adherence or coherence at the interface of the parts at least one of the parts being self-supporting prior to the bonding operation.

(1) Note. The coherence is usually effected by heat,

externally applied or by the residual heat retained by the glass part from a previous operation, which renders the adherent face of the glass part soft thereby permitting fusion bonding of the glass part directly to the adherent face of the other part.

(2) Note. Processes of forming a glass part from molten glass in situ on another part are within the scope of this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102+, for a process of collapsing or sealing off of a glass preform with bonding or fusion thereof.

146, for laminating apparatus including means to feed diverse material thereto and subclasses 152+ for fusion bonding means. SEE OR SEARCH CLASS

29, Metal Working,

428+, and 700+, for a process or apparatus, respectively, for mechanical joining of parts.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses, for processes and apparatus for adhesive securing of parts other than by glass fusion or metal fusion, see especially

89.11+, for a process of laminating comprising decal-type transfer of a lamina of ceramic material to a base with subsequent firing thereof to bond the lamina to the base, and subclasses 99+ for optically transparent glass sandwich making including a Class 156 bonding combined with a Class 65 reshaping (e.g., bending) operation. A process reciting a Class 65 bonding step and a Class 156 bonding step is classified in Class 65. For other lines with Class 156, see the notes in subclasses 23, 31, 37+, and 42 in Class 65.

228, Metal Fusion Bonding,

122.1+, for bonding of glass to metal by metal solder.

438, Semiconductor Device Manufacturing: Process, particularly

107+, and 455+ for methods for joining plural semiconductor substrates. While Class 65 considers silicon and silicon dioxide glass, and hence takes the melting, shaping, or fusion bonding of the same (as well as combined operations whether preparatory or subsequent to the melting, shaping, or fusion bonding step), if the structure formed is identified as having utility for semiconductor electrical devices, placement is proper in Class 438; see the search notes therein.

445, Electric Lamp or Space Discharge Component or Device Manufacturing.