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US3858276A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for removing trash from carded fibers

Assignee: Individual
•
Filing: 1973-08-27
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Granted: 1975-01-07
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Expires: 1993-08-27
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Abstract

Abstract Apparatus for removing trash from carded fibers includes a plate portion conforming generally to card clothing on the main cylinder, means for positioning the plate portion in superposed spaced relation to the card clothing on the main cylinder between the means feeding fiber to the main cylinder and the doffer, and a passageway defined at least in part by the plate portion permitting removal of trash therethrough responsive to centrifugal force imparted to the trash by the main cylinder but retaining fibers for delivery to the doffer.

Inventors

  • 👤 John D Hollingsworth

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 12:48
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/76; D01G15/82; D01G15/02; D01G15/12; D01G15/34

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 220 words
In a carding machine having a main cylinder, means feeding fibers to said main cylinder, and stationary plate means carried in superposed fixed spaced relation to the card clothing on the main cylinder having card clothing in carding relation to card clothing on the main cylinder, apparatus for removing trash from carded fibers prior to delivery of the carded fibers to a doffer comprising: A. a plate portion conforming generally to the card clothing on the main cylinder; B. means positioning said plate portion in superposed fixed spaced relation to the card clothing on the main cylinder; C. an edge of the plate portion beveled rearwardly and upwardly forming a sharpened lower edge facing in a direction opposite to the direction of rotation of the main cylinder; D. said stationary plate means having an edge opposite said sharpened lower edge; E. means positioning said sharpened lower edge below said opposite edge and in spaced relation thereto; and F. said sharpened lower edge and said opposite edge defining a passageway permitting removal of trash therethrough at least partially responsive to centrifugal force imparted to the trash by the main cylinder but retaining the fibers for delivery to the doffer; whereby a substantial portion of the trash is removed while fibers are retained for delivery by the main cylinder to the doffer.
Claim 2
Dependent Claim 220 words
In a carding machine having a main cylinder, means feeding fibers to said main cylinder, and stationary plate means carried in superposed fixed spaced relation to the card clothing on the main cylinder having card clothing in carding relation to card clothing on the main cylinder, apparatus for removing trash from carded fibers prior to delivery of the carded fibers to a doffer comprising: A. a plate portion conforming generally to the card clothing on the main cylinder; B. means positioning said plate portion in superposed fixed spaced relation to the card clothing on the main cylinder; C. an edge of the plate portion beveled rearwardly and upwardly forming a sharpened lower edge facing in a direction opposite to the direction of rotation of the main cylinder; D. said stationary plate means having an edge opposite said sharpened lower edge; E. means positioning said sharpened lower edge below said opposite edge and in spaced relation thereto; and F. said sharpened lower edge and said opposite edge defining a passageway permitting removal of trash therethrough at least partially responsive to centrifugal force imparted to the trash by the main cylinder but retaining the fibers for delivery to the doffer; whereby a substantial portion of the trash is removed while fibers are retained for delivery by the main cylinder to the doffer.
Claim 3
Dependent Claim 49 words
The structure set forth in claim 1 wherein a plurality of plate portions having sharpened edges are carried in superposed spaced relation to the card clothing on the main cylinder each sharpened edge defining together with an opposite edge of a plate portion a passageway for removal of trash.

References Cited (Backward Citations)

US466846A Cited
US2879549A Cited
US3120030A Cited
US3387337A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-06 1978-07-08 1979-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-06 1982-07-08 1983-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-06 1986-07-08 1987-01-07 $7700.00 Window Closed / Lapsed

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