US3722877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for opening folded bound multiple sheet paper products
Assignee: Ferag AG
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Filing: 1970-12-28
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Granted: 1973-03-27
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Expires: 1990-12-28
Abstract
Abstract There is disclosed an apparatus for opening folded, bound, multiple-sheet paper products which are continuously advanced or conveyed at a spacing from one another at a conveying device. According to the invention, there are provided two driven entrainment members which act at opposite flat sides of the paper products, and wherein the paths of movement of these entrainment members are at least partially disposed in the conveying plane, enclose an acute angle with respect to one another, and possess a directional component which coincides with the conveying direction.
Inventors
- 👤 J Wetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:44
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/30; B65H5/301; B65H5/302; B41; B41F; B41F13/00; B41F13/54; B41F13/68; B65H2301/00; B65H2301/40; B65H2301/43; B65H2301/434
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
135 words
An apparatus for opening folded, bound, multisheet paper products comprising conveying means for continuously conveying the paper products at a spacing from one another with the fold disposed substantially parallel to the direction of conveying while the paper products bear against such conveying means, a pair of oppositely disposed driven entrainment means for acting upon opposite flat sides of the paper products, said entrainment means moving through respective paths of travel when acting upon the opposite flat sides of the paper products, said paths of travel defining a plane parallel to the plane of conveying of the products, said paths of travel of said entrainment means enclosing an acute angle with respect to one another and eacH said path of travel possessing a directional component substantially corresponding to the direction of conveying of the products.
Claim 2
Independent Claim
135 words
An apparatus for opening folded, bound, multisheet paper products comprising conveying means for continuously conveying the paper products at a spacing from one another with the fold disposed substantially parallel to the direction of conveying while the paper products bear against such conveying means, a pair of oppositely disposed driven entrainment means for acting upon opposite flat sides of the paper products, said entrainment means moving through respective paths of travel when acting upon the opposite flat sides of the paper products, said paths of travel defining a plane parallel to the plane of conveying of the products, said paths of travel of said entrainment means enclosing an acute angle with respect to one another and eacH said path of travel possessing a directional component substantially corresponding to the direction of conveying of the products.
Claim 3
Dependent Claim
22 words
The apparatus as defined in claim 1, wherein both entrainment means comprise endless revolving entrainment elements frictionally acting upon the paper products.
Claim 4
Dependent Claim
56 words
The apparatus as defined in claim 2, further including means for driving said entrainment elements such that one entrainment element is driven in the same direction and with the same speed as said conveying means, while the speed of the other entrainment element is larger by the reciprocal value of the cosine of the acute angle.
Claim 5
Dependent Claim
24 words
The apparatus as defined in claim 2, wherein the length of the revolving entrainment elements is less than the length of the conveying means.
Claim 6
Dependent Claim
51 words
The apparatus as defined in claim 1, wherein said conveying means comprises an endless revolving conveyor band arranged between a slide track means and an impact rail and against which bear the paper products, and means for rendering said conveyor band effective in a conveying sense at substantially regular time intervals.
Claim 7
Dependent Claim
35 words
The apparatus as defined in claim 5, wherein said slide track means and said conveyor band extend in a plane inclined through an angle of about 5* to 30* with respect to a vertical plane.
Claim 8
Dependent Claim
93 words
The apparatus as defined in claim 5, wherein each said entrainment comprises an endless revolving entrainment element, and including means for driving said entrainment elements such that one entrainment element is driven in the same direction and with the same speed as said conveying means, while the speed of the other entrainment element is larger by the reciprocal value of the cosine of the acute angle, and wherein said one entrainment element revolving in the same directional sense with the conveyor band is situated substantially in the same plane as the conveyor band.
Claim 9
Dependent Claim
45 words
The apparatus as defined in claim 7, wherein said slide track means is provided with a raised portion at the region of the infeed location of said one entrainment band against which ride the paper products in order to be knicked in the conveying direction.
Claim 10
Dependent Claim
27 words
The apparatus as defined in claim 7, wherein said one entrainment element situated substantially in the plane of the conveyor band comprises an endless entrainment band member.
Claim 11
Dependent Claim
94 words
The apparatus as defined in claim 9, wherein said other entrainment element comprises an endless driven traction element operably associated with said one endless entrainment band disposed in the plane of the conveyor band, said endless driven traction element being arranged at an acute angle with respect to said one entrainment band, said endless traction element carrying at least one press arm member serving to press the paper products against the travelling said one entrainment band and for displacing a part of each paper product contacted thereby substantially transverse to the conveying direction thereof.
Claim 12
Dependent Claim
70 words
The apparatus as defined in claim 5, wherein said means rendering said conveyor band effective in a conveying sense comprises press roller means operatively associated with the conveyor band, an endless traction element disposed opposite said conveyor band at which said press roller means are secured at a substantially uniform spacing from one another, said press roller means serving to press the infed paper products against the travelling conveyor band.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |