US PATENT SUBCLASS 228 / 101
PROCESS

Current as of: June, 1999
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228 /   HD   METAL FUSION BONDING

101PROCESS {38}
102  DF  .~> With condition responsive, program, or timing control
103  DF  .~> With measuring, testing, indicating, inspecting, or illuminating {2}
106  DF  .~> Using a compliant cushioning medium
107  DF  .~> Using explosive energy {2}
110.1  DF  .~> Using high frequency vibratory energy (e.g., ultrasonic) {2}
112.1  DF  .~> Using dynamic frictional energy (i.e., friction welding) {3}
115  DF  .~> Using only pressure (e.g., cold welding) {2}
118  DF  .~> Using bond inhibiting separating material
119  DF  .~> Repairing, restoring, or renewing product for reuse
120  DF  .~> Mechanically joining metal/nonmetal and bonding to the metal
121  DF  .~> Bonding nonmetals with metallic filler
122.1  DF  .~> Metal to nonmetal with separate metallic filler {5}
125  DF  .~> With removing or reshaping of filler material or flash after bonding
126  DF  .~> Encasing a rodlike core within a substantially coextensive tube by complete bonding therebetween {4}
135  DF  .~> With supplementary mechanical joining {3}
141.1  DF  .~> With shaping {7}
175  DF  .~> Plural diverse bonding
176  DF  .~> Combined
177  DF  .~> Alternative bonding
178  DF  .~> Plural joints {9}
191  DF  .~> With disassembling of bonded joint (e.g., desoldering)
192  DF  .~> Chain link
193  DF  .~> Diffusion type {2}
196  DF  .~> Autogenous fusion {1}
198  DF  .~> Chemical reaction produces filler material in situ
199  DF  .~> With subsequent treating other than heating of bonded parts and/or filler material {2}
203  DF  .~> With pretreating other than heating or cooling of work part of filler prior to bonding and any application of filler {4}
212  DF  .~> With clamping or holding {1}
214  DF  .~> With protecting of work or filler or applying flux {5}
225  DF  .~> Plural filler applying {1}
227  DF  .~> Plural heat applying {5}
233.1  DF  .~> Specific rate of varying pressure or schedule of distinct pressures
233.2  DF  .~> Specific rate of varying temperature or schedule of distinct temperatures
234.1  DF  .~> Specific mode of heating or applying pressure {3}
244  DF  .~> Feeding unfused filler into fusing contact with work part
245  DF  .~> Preplacing solid filler {3}
256  DF  .~> Applying or distributing fused filler {6}
262.1  DF  .~> Critical work component, temperature, or pressure {7}

DEFINITION

Classification: 228/101

(under the class definition) Process including the securing discrete juxtaposed meeting faces of work parts or spaced juxtaposed meeting faces of a single work part by adherence or coherence at the interface of the juxtaposed areas.

(1) Note. This is the generic locus for the process of bonding work faces together. In this and the subclasses indented hereunder, for example, is a process of securing metal parts together by welding, brazing or soldering, a process of bonding a metal and a nonmetal surface together, as well as a process of joining two nonmetal parts when using a metallic filler.

(2) Note. The process of coating or casting a layer of material on a base in which the casting or coating joins as by bonding to the base is not considered to be surface bonding for this subclass; however, if solidification of the cast or coated layer is followed by a treatment, e.g., rolling or forging, to effect or improve the bond between the base and the layer, such process, if it is otherwise eligible, is classified in this and the indented subclasses.

(3) Note. Where the process claimed includes coating either the meeting face of a metal work part or a nonmetal work part with a layer of metallic or nonmatellic material and then uniting the two such faces together by use of nonmetallic cement or adhesive or by making of a nonmetallic part plastic and pressing the parts together so that their meeting faces adhere to each other, the process will be classified with the art which provides for the method of making the joint, the coating operation being only a step in preparation for the uniting operation. See Lines With Other Classes and Within This Class, Relationship to Other Classes, The Class of Adhesive Bonding, in Class 228.

(4) Note. Faces of parts are considered to be "meeting" for this and the indented subclasses if they are bonded together, even if it is through an intermediate filler material and even if the faces are oppositely bevelled for the reception of filler material.

SEE OR SEARCH CLASS

29, Metal Working, 527.2+, for a process of casting and/or coating a layer on a

base followed by subsequent treatment of the layer and base, in which the initial casting or coating step effects the bond between the layer and base and the subsequent treatment is for purposes other than to effect or perfect such bond, and see (2) Note above.

65, Glass Manufacturing,

59.2+, for a process of bonding glass to metal wherein a uniting operation involves a glassworking operation, e.g., fusing or softening of the glass; see the "Search Notes" thereunder.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

60+, for a process for joining parts utilizing a nonmetallic cement or by making a nonmetallic part tacky or adhesive by means of an activating agent and causing it to adhere to another part.

164, Metal Founding,

91+, for a uniting process involving metal casting.

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

114, for a process of bonding parts together by electro-deposition.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes, for a miscellaneous process of molding and at the same time uniting two or more substances.

403, Joints and Connections, 265+, for a joint between two members which joint comprises a fusion bond between the members.

413, Sheet Metal Container Making,

24+, for a process of making receptacles and containers including the closures therefor from sheet metal, which process may include joining the parts together by a soldering operation.

419, Powder Metallurgy Processes,

5+, for a process of applying one or more layers of particulate metal to a metal base and heating the assembly so as to sinter the particulate metal and concurrently bond that layer or layers to the base.

428, Stock Material or Miscellaneous Articles,

939, for a metallic stock material made by a process of this

subclass.