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Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

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Class 400 - Typewriting machines

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1124 Subclasses


Subclasses list

Definition

This is the generic class for an apparatus wherein a user of the apparatus causes an intelligible character* to be imprinted on a record-medium* by a type-member* that is impressed on the record-medium, said type-member being selected from a plurality of different type-members, and the selected type-members being impressed serially to form a sequence of characters that record intelligible information.

This class includes a method of using the apparatus described above.

(1) Note. The definition as written above is intended to emphasize the major difference between this class (400) and the class of printing. The difference is that as a general rule in this class each character* is imprinted serially by a type-member* that is selected from an assortment of type-members, the assortment containing only one of each type-member to be impressed, and the selection being made in sequence to imprint one character after another to form a word, and one word after another to form the text to be read. In the printing class, on the other hand, a plurality of type-members are arranged to be printed simultaneously to form a print-line* or a page* or a plurality of pages of printed text. (2) Note. The word "intelligible" in the definition of this class does not limit the character to a visible character. A character that is invisible to the human eye can be intelligible to a "scanner" that "reads", for example, infrared light emanations, and thus be intelligible within the definition stated above. (3) Note. Explanatory note regarding placement of patents within the class. A typewriter includes many elements, often numbering in the hundreds and even thousands of elements. Because of this, many patents in the typewriter art include claims that recite elements of a typewriter that are named in a claim for the purpose of setting forth the environment of the inventive structure. In such patents, the mere naming of various elements in a claim will not necessarily be the basis of placing a patent having such a claim into the schedule as an original patent. Original placement will be based upon the inventive concept emphasized in a patent claim rather than on the basis of all the elements that are merely named in a claim.

Lines with other classes and within this class

The relationship of this class (400) to classes which warrant specific mention is as follows:

Class 101, Printing, involves the imprinting on a record-medium* of a multitude of character symbols simultaneously to form a print-line* or a page* or a plurality of pages of printed text. The significant difference between this class (400) and Class 101 lies in the term "simultaneously". In Class 101 plurality of type-face* elements are assembled. If a plurality of occurrences of a particular character are to be printed, a corresponding number of type-faces representing that character are included in the assemblage. When the entire assemblage of type-faces is inked and impressed against a record-medium, all the type-faces will be imprinted simultaneously. In this class (400) only one type-face element is provided for each character to be imprinted, and the type-faces are impressed in sequence to form the text. Two exceptions should be noted. In a stenographic typewriter, the typist may select two or more characters to be imprinted to form a syllable of a word, and may then select two or more characters to form another syllable of a word. One or more of the characters selected for one syllable may be selected again to form another syllable, but only one type-face for each character to be imprinted is provided in the stenographic typewriter. In a logotype typewriter a plurality of type-face elements may be preassembled to form a word or symbol, but the logotype type-face is one of the type-face elements of the typewriter, and the logotype type-face element is selected as one of the type-face elements in the sequence of characters to be imprinted serially. Various subcombinations of elements are usable either in a Class 101 printing press or in a typewriter of this class (400). Among such subcombinations are a ribbon-feeding or ribbon-inking mechanism, a record-medium feeding mechanism, etc., but the placement of a patent to such subcombination will be governed by the environment of the machine.

Class 178, Telegraphy, includes in subclasses 4 and 23 disclosures of printing telegraph systems that are similar in some aspects to a typewriter. In general, Class 178 involves a telegraphic system including one or more signal-sending units, one or more signal-receiving units, and electrical circuitry, the system being capable of (a) transmitting a signal over great distances, or (b) boosting or amplifying the signal, or (c) mixing signals that have been generated in a plurality of sending units, transmitting the mixed signals over a single line and unmixing the signals at a plurality of receiving units so that each receiver will transcribe only its own signal from the single line, or (d) selecting the receiving units that will be controlled by the sending units. Class 178 also provides, in various subclasses, for subcombinations including key-board*, key* element, type wheel, and other elements that are peculiar to printing telegraph systems. This class (400) as related to Class 178, involves a typewriter that is (a) directly coupled to a second typewriter by electrical or mechanical linkage over a short distance (e.g., "master-slave" relationship), or (b) coupled by way of a "storage" or "memory" circuit to itself or to a second typewriter (e.g., "input-output" relationship), or (c) controlled to modify the typing signals generated by a typist to create a text different from that which would be produced by the unmodified generated signals (e.g., by "justification" (see subclass 1). This class (400) will also accept subcombinational aspects of a telegraphic printer that embody typewriter subcombinations not provided for in Class 178. Examples of such subcombinations include: ribbon* feed, carriage* feed, record-medium feed, type-head* structure, key-board mechanism, type-bar* action, tabulator structure, etc.

Class 234, Selective Cutting (e.g., Punching), the relationship of this class (400) to Class 234 is fully set forth in the class definition of Class 234, in section V, paragraph E. Reference is made to the relationship between Class 234 and Class 400, Typewriting Machines, in that note.

Class 235, Registers, the relationship of this class (400) to Class 235 is set forth in the "SEARCH CLASS" 400, Typewriting Machines, that appears under the definition of Class 235, subclass 60.

Class 346, Recorders, provides for an ink* jet means for recording intelligence. This class (400) provides for a typewriter structure in which the usual type-face* element that impresses a character symbol against a record-medium is replaced by an ink jet for imprinting a character symbol on a record-medium. To be placed as an original into this class, a patent should clearly recite the typewriter structure that controls the ink jet to form characters successively.

Class 358, Facsimile and Static Presentation Processing, includes in subclasses 1.1-1.18 disclosures involving a data-processing system that generates a printout of the results produced by the processing system. The significant subject matter of such a system is proper for Class 358.

OTHER CLASSES INCLUDING MATERIAL HANDLING OR MATERIAL FEEDING

See References to Other Classes for subcombinations that may be included in a typewriter to feed a record-medium* or a ribbon* or other sheetlike or weblike material. For a patent to be placed as an original into this class (400) the claimed subject matter of such patent should be clearly related to a typewriter (e.g., be directed to one or more ink*-ribbon spools in a typewriter, sheet, or web feeding involving line-space* distances or format control in a typewriter, etc.).

SEARCH NOTES TO OTHER CLASSES INCLUDING SUBCOMBINATIONS USABLE IN A TYPEWRITER

See References to Other Classes for subcombinations that may be included in a typewriter for various purposes needed during the operation of a typewriter. For a patent to be placed as an original into this class (400) the claimed subject matter of such patent should be clearly related to a typewriter (e.g., be directed to a device for cleaning a type-face* of a typewriter, a bell for indicating the occurrence of the end of a print-line* in a typewriter, etc.).
 
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