US PATENT SUBCLASS 425 / 500
PREFORM ASSEMBLY MEANS AND MEANS FOR BONDING OF PLURAL PREFORMS INVOLVING PREFORM RESHAPING OR VULCANIZING

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

500PREFORM ASSEMBLY MEANS AND MEANS FOR BONDING OF PLURAL PREFORMS INVOLVING PREFORM RESHAPING OR VULCANIZING {8}
501  DF  .~> Vulcanizing or curing means including a conforming preform support {1}
503  DF  .~> Reshaping means utilizing fluid pressure directly contacting work {1}
505  DF  .~> Means forming indefinite length product
506  DF  .~> With treatment means other than assembling, bonding, shaping or reshaping means {2}
515  DF  .~> With additional shaping means to form or reshape preform upstream of bonding means {1}
517  DF  .~> Means press fitting or forcibly embedding one preform into another preform
518  DF  .~> Plural reshaping means {1}
520  DF  .~> Opposed coacting press members {1}

DEFINITION

Classification: 425/500

(under the class definition) Apparatus comprising handling or support means for bringing together individual preforms into contacting relationship and bonding means for causing the preforms to become united by adhesion, fusion or vulcanization, wherein (1) the bonding is accompanied by a reshaping of at least one preform in the bonding area, or (2) in the case of vulcanization, the shape of the assembled uncured preforms is maintained or retained through the use of a conforming support means.

(1) Note. To be included herein, the handling or support means which bring the preforms together must be dynamic rather than static, e.g.., manual devices which aid the operator to assemble the preforms by hand are not included. Also, mere reshaping of previously assembled preforms is not

included even though there is a uniting of the preforms.

(2) Note. A shaped charge which is handled as a discrete unit is considered a preform when it contributes to the final shape of the product.

(3) Note. Included herein are also devices for assembling plural parts or portions of a single preform wherein the parts are handled individually in the same manner as plural preforms.

(4) Note. Including herein is the forcible inserting or embedding of one preform into the plastic body of another preform even though the only reshaping is the displacement of material accompanying and resulting from the preform inserting, see subclass 517.

(5) Note. Overlapping or contacting pieces of dough (e.g.., by coiling, twisting or lapping, etc..) are not included herein unless particular means are provided to reshape the contacting areas subsequent to assembly to effect a uniting thereof. Such patents are found in other appropriate subclasses. All patents for uniting overlapping portions of pretzel dough are found in subclass 323. SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for a means encapsulating a normally liquid material including means for making a package and comprising apparatus for assembling and bonding plural preforms involving preform reshaping.

110+, for means shaping fluent material and uniting the same to a preform to make a composite product.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

36+, for processes of fusion bonding of a glass part to a preform; subclasses 152+ for fusion bonding apparatus uniting preforms and involving a glass working operation.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for means uniting plural preforms without reshaping at the joint. See the class definition of Class 425 for a more detailed explanation of the lines concerning Class 156.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

241+, for processes of uniting plural preforms involving joint reshaping.