US3842465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to form fibrous laps from webs
Assignee: Individual
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Filing: 1973-01-09
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Granted: 1974-10-22
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Expires: 1993-01-09
Abstract
Abstract An apparatus to form a fibrous lap from webs, comprising a conveyor to deliver the webs, and a mechanism to lay the webs onto a conveyer withdrawing the ready lap. The web laying mechanism includes two vertical conveyers mounted on a rocking frame, and positively rotated compacting rolls mounted on a carriage which is hingedly connected to the rocking frame, and moves along the withdrawing conveyer.
Inventors
- 👤 T Randmaa
- 👤 V Loo
- 👤 A Sillaots
- 👤 N Kuuse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/74; D01; D01G; D01G25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
257 words
An apparatus for continuously forming a fibrous lap from webs, comprising; a delivery conveyor for said webs mounted on a pair of rotatable drums, said drums being located in spaced relationship in a common horizontal plane and fixed against translational movement; a pair of vertical conveyors having the upper ends thereof positioned adjacent the outlet end of said delivery conveyor, said vertical conveyors having a predetermined clearance therebetween so as to facilitate passage therethrough by said webs; a further conveyor located below said vertical conveyors for withdrawing the formed lap of said webs conveyed between said vertical conveyors; an oscillating frame mounting said vertical conveyors and being rockable relative to an axis laying in the plane of the geometrical axes of said drums at a tangent to the outlet end of said delivery conveyor and along said withdrawing conveyor for laying said webs on said lastmentioned conveyor in the logitudinal direction thereof; a pair of positively rotated compacting rolls; carRiage means mounting said compacting rolls for horizontal movement below said vertical conveyor; hinge means having a projecting portion being fastened to the lower end of said oscillating frame, said carriage means having a generally vertically extending slot formed therein for receiving said projecting portion so as to hingedly connect said carriage means to said oscillating frame whereby, during rocking motion of said frame about said axis there is relative vertical movement between said carriage means and the lower end of said vertical conveyors and said carriage means is movable in the same direction as said withdrawing conveyor.
Claim 2
Independent Claim
257 words
An apparatus for continuously forming a fibrous lap from webs, comprising; a delivery conveyor for said webs mounted on a pair of rotatable drums, said drums being located in spaced relationship in a common horizontal plane and fixed against translational movement; a pair of vertical conveyors having the upper ends thereof positioned adjacent the outlet end of said delivery conveyor, said vertical conveyors having a predetermined clearance therebetween so as to facilitate passage therethrough by said webs; a further conveyor located below said vertical conveyors for withdrawing the formed lap of said webs conveyed between said vertical conveyors; an oscillating frame mounting said vertical conveyors and being rockable relative to an axis laying in the plane of the geometrical axes of said drums at a tangent to the outlet end of said delivery conveyor and along said withdrawing conveyor for laying said webs on said lastmentioned conveyor in the logitudinal direction thereof; a pair of positively rotated compacting rolls; carRiage means mounting said compacting rolls for horizontal movement below said vertical conveyor; hinge means having a projecting portion being fastened to the lower end of said oscillating frame, said carriage means having a generally vertically extending slot formed therein for receiving said projecting portion so as to hingedly connect said carriage means to said oscillating frame whereby, during rocking motion of said frame about said axis there is relative vertical movement between said carriage means and the lower end of said vertical conveyors and said carriage means is movable in the same direction as said withdrawing conveyor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |