Patent US2247950A successfully refreshed from Google Patents.
Patent US3735730A successfully refreshed from Google Patents.
US3735730A
Expired / Lapsed
US
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Apparatus for applying a flowable medium to a carrier
Assignee: Mitter and Co
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Filing: 1970-12-21
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Granted: 1973-05-29
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Expires: 1990-12-21
Abstract
Abstract A flowable medium is to be supplied to an exposed surface of a carrier, for instance a web which is to be printed. A supply arrangement supplies the flowable medium to the vicinity of the exposed surface and an applicator arrangement is provided for applying it to the exposed surface. The applicator includes a hollow spreading element of elastically distendable material which engages either the exposed surface directly, or engages a portion of the applicator arrangement which is operatively associated with the exposed surface, and admitting means is provided for admitting requisite quantities of pressurized fluid to the interior of the hollow spreading element whereby to distend the latter to various extents and thus vary its engaging pressure.
Inventors
- 👤 M Mitter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:48
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/14; B41F15/44; B41L; B41L13/00; B41L13/04
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
145 words
In an apparatus for applyiNg a flowable medium to a carrier, in combination, carrier means having an exposed surface; a supply arrangement for supplying a flowable medium to the vicinity of said exposed surface; applying means mounted proximal to said carrier means and having a contact face proximal to said exposed surface for spreading said flowable medium on the latter, said contact face including with said exposed surface an angle and at least one of said means being mounted at least in part for travel with reference to the other means, said applying means comprising an at least partially hollow tubular spreading element consisting at least partly of elastically distendable material associated with said contact face, and a holder for said spreading element; and varying means for varying the angle included between said contact face and said exposed surface at the will of an operator.
Claim 2
Dependent Claim
145 words
In an apparatus for applyiNg a flowable medium to a carrier, in combination, carrier means having an exposed surface; a supply arrangement for supplying a flowable medium to the vicinity of said exposed surface; applying means mounted proximal to said carrier means and having a contact face proximal to said exposed surface for spreading said flowable medium on the latter, said contact face including with said exposed surface an angle and at least one of said means being mounted at least in part for travel with reference to the other means, said applying means comprising an at least partially hollow tubular spreading element consisting at least partly of elastically distendable material associated with said contact face, and a holder for said spreading element; and varying means for varying the angle included between said contact face and said exposed surface at the will of an operator.
Claim 3
Dependent Claim
71 words
In an apparatus as defined in claim 1, wherein said applying means comprises a rotary drum permeable to said flowable medium mounted adjacent said carrier means and having an outer side proximal to said exposed surface and an inner side onto which said flowable medium is supplied; and wherein said hollow spreading element is mounted within said drum stationarily relative thereto, with said contact face engaging said inner side under pressure.
Claim 4
Dependent Claim
56 words
In an apparatus as defined in claim 2, wherein said varying means comprises a source of fluid under pressure, and admitting means communicating with said source and the interior of said spreading element for admitting into the latter a quantity of such fluid requisite for distending the material of said spreading element to a desired extent.
Claim 5
Dependent Claim
40 words
In an apparatus as defined in claim 3, said admitting means comprising valve means for continuously varying the admittance of fluid to the interior of said spreading element, whereby to continuously vary the distending of the material of the same.
Claim 6
Dependent Claim
50 words
In an apparatus as defined in claim 3, said supply arrangement including a supply conduit extending into said drum axially of the same; and further comprising holding means arranged in said drum below said supply conduit for holding said spreading element in requisite relationship with reference to said exposed surface.
Claim 7
Dependent Claim
73 words
In an apparatus as defined in claim 5, wherein said holding means in an elongated substantially U-shaped member having an open side, and wherein said spreading element comprises a distendable hose portion accommodated in and extending longitudinally of said U-shaped member, and a substantially U-shaped channel portion of elastically distendable material embracing said hose portion and in part extending outwardly through said open side, said channel portion being provided with said contact face.
Claim 8
Dependent Claim
23 words
In an apparatus as defined in claim 6, wherein said hose portion and said channel portion consist at least predominantly of elastomeric material.
Claim 9
Dependent Claim
90 words
In an apparatus as defined in claim 6, said U-shaped member having two lateral arms each extending axially of said drum, one of said arms being located upstream of the other arm with reference to the rotation of said drum; and wherein said channel member has a first lateral wall portion bonded to said one arm, a second lateral wall portion loosely abutting said other arm, and a bight wall portion provided with said contact face with the latter facing said exposed surface and including therewith a variable acute angle.
Claim 10
Dependent Claim
42 words
In an apparatus as defined in claim 8, said arms each having an inwardly directed side facing the interior of said U-shaped member; and wherein said first and second lateral wall portions each engage the inwardly directed sides of the respective arms.
Claim 11
Dependent Claim
28 words
In an apparatus as defined in claim 8, wherein said contact face is inclined towards said exposed surface in direction from said one arm towards said other arm.
Claim 12
Dependent Claim
60 words
In an apparatus as defined in claim 10, said arms each having a longitudinally extending free marginal zone; and wherein said marginal zone of said other arm is closer to said exposed surface than said marginal zone of said one arm and includes with the remainder of said other arm an obtuse angle in direction of rotation of said drum.
Claim 13
Dependent Claim
47 words
In an apparatus as defined in claim 6, said U-shaped member having a bight portion facing away from said open side and from said exposed surface; and wherein said hose portion is connected with said U-shaped member in the region of said bight portion of the latter.
Claim 14
Dependent Claim
61 words
In an apparatus as defined in claim 5; further comprising support means engaging said supply conduit, holding means and spreading element in the region of the opposite axial ends of said drum; and wherein said varying means are operative for continuously varying the distance of said supply conduit, holding means and spreading element from said exposed surface of said carrier means.
Claim 15
Dependent Claim
41 words
In an apparatus as defined in claim 13, said support means comprising at least two supports, and said varying means comprising at least two varying arrangements each associated with one of said supports and operable independently of the other varying arrangement.
Claim 16
Dependent Claim
34 words
In an apparatus as defined in claim 4; and further comprising a pressure-indicating device operatively associated with said valve means for indicating the pressure of fluid prevailing in the interior of said spreading element.
Claim 17
Dependent Claim
53 words
In an apparatus as defined in claim 8, said channel portion having a pressure-exerting contact edge at the juncture of said bight wall portion with said second lateral wall portion; and further comprising a substantially L-shaped elongated reinforcing component for said contact edge exteriorly embracing said juncture and fast with said channel portion.
Claim 18
Dependent Claim
16 words
In an apparatus as defined in claim 16, wherein said reinforcing component consists of sheet steel.
Claim 19
Dependent Claim
26 words
In an apparatus as defined in claim 8; and further comprising an elongated internal reinforcing component of substantially L-shaped cross-section located interiorly of said channel portion.
Claim 20
Dependent Claim
19 words
In an apparatus as defined in claim 18, wherein said internal reinforcing component is located within said hose portion.
Claim 21
Dependent Claim
27 words
In an apparatus as defined in claim 18, wherein said internal reinforcing component is located intermediate and in contact with said hose portion and said channel portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |