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US3630803A Expired / Lapsed US ⏱️ 0.0 years remaining

Processes and devices for joining fabric strips

Assignee: Semperit AG Holding
•
Filing: 1969-01-23
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Granted: 1971-12-28
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Expires: 1989-01-23
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Abstract

Abstract The instant invention concerns a process and a machine for overlapping and in the overlapped position joining single cut strips. The process is carried out with the aid of a conveyor belt and transport means; the transport means transport the strips to a position below the conveyor belt whereupon at least a portion of the conveyor belt is depressed thereby causing the strips thereunder to adhere thereto; subsequently the belt with the strips adhered thereon is raised and the transport means is activated so as to bring in alignment with the belt a next strip which can overlap the just lifted strip; the two overlapping strips are then pressed together and are subsequently removed from the machine. The machine for carrying out the aforesaid process is comprised of transport means which are operative to move the cut strips, a conveyor belt disposed above the transport means and adhesion generating means disposed near the conveyor belt and operative to impart an adhesive effect to a lower portion of said belt. There is also provided lifting means for transporting the strips and roller means to press the strips together.

Inventors

  • 👤 Gerhard Printz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:54
CPC Classifications
D; D06; D06H; D06H5/00; A; A41; A41H; A41H43/00; A41H43/02; B; B26; B26D; B26D1/00; B26D1/01; B26D1/04; Y; Y10; Y10S; Y10S156/00; Y10S156/906; Y10S156/907; Y10T; Y10T156/00; Y10T156/12; Y10T156/13

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 18 words
In a process, as claimed in claim 1, the further steps comprising imparting and withholding said adhesive effect.
Claim 2
Dependent Claim 20 words
In a process, as claimed in claim 1, the further steps comprisiNg transporting said strips intermittently on said transport means.
Claim 3
Dependent Claim 21 words
A process as claimed in claim 1 in which said strips are diagonally cut flanks of rubberized fabric or the like.
Claim 4
Dependent Claim 138 words
A machine for overlapping and in the overlapped position connecting cut strips, comprising in combination: transport means operative to move said cut strips substantially horizontally; a conveyor belt including a continuously moving lower belt portion disposed above said transport means; adhesion generating means disposed near said lower belt portion operative to impart an adhesive effect to said lower belt portion; lifting means operable to decrease and subsequently to increase the distance between said lower belt portion and said transport means for lifting succeeding strips from said transport means to the underside of said lower belt portion, said adhesion generating means operating to cause said strips removably to adhere to said underside of said continuously moving lower belt portion; and roller means disposed at one end of said conveyor belt and operative to press said cut overlapping strips together.
Claim 5
Dependent Claim 25 words
A machine, as claimed in claim 5, wherein said lower belt portion moves in a direction substantially parallel to the cut edge of said strips.
Claim 6
Dependent Claim 26 words
A machine, as claimed in claim 5, wherein said transport means move said strips in a direction substantially perpendicular to the plane of said cut strips.
Claim 7
Dependent Claim 17 words
A machine, as claimed in claim 5, and means to activate and deactivate said adhesion generating means.
Claim 8
Dependent Claim 45 words
A machine, as claimed in claim 5, said conveyor belt being porous, said adhesion generating means including suction means disposed above said lower belt portion generating a suction effect through said lower belt portion when activated, to attract and to hold until deactivated said strips.
Claim 9
Dependent Claim 21 words
A machine as claimed in claim 5 wherein a roller is provided for pressing together the overlapped parts of said strips.

References Cited (Backward Citations)

US2902082A Cited
US2962083A Cited
US3141805A Cited
US3192094A Cited
US3235433A Cited
US3193282A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-27 1975-06-28 1975-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-27 1979-06-28 1979-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-27 1983-06-28 1983-12-28 $7700.00 Window Closed / Lapsed

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