Patent US3752114A successfully refreshed from Google Patents.
US3752114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive applying machine
Assignee: R F BELTER Corp A OH CORP
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Filing: 1971-06-16
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Granted: 1973-08-14
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Expires: 1991-06-16
Abstract
Abstract The invention relates to a compact, inexpensive, and highly efficient adhesive wax applying machine which utilizes an adhesive applying roller dipping into a heated tank carrying the adhesive. A top roller is arranged in cantilevered relationship to cooperate with the bottom roller. Means are provided to drive both rollers. The adhesive tank is heated, and is preferably cast aluminum to facilitate heat transfer to both rolls. The cover is plastic to provide insulation, and is easily removable. Adjustments are provided for doctor bars, and takeoff means, as well as for the rollers to facilitate its use and cleaning.
Inventors
- 👤 C Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:24
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/0826; B05C1/083
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
179 words
Apparatus for applying an adhesive coating to one surface of a sheet of material, comprising: a tank for holding a quantity of adhesive in liquid form; a frame positioned within the tank and having a first end plate adjacent one side wall of the tank, a second end plate adjacent the opposite side wall of the tank, an intermediate portion connecting the first and second end plates, and an arm portion extending from the upper end of the first end plate in parallel relation to the intermediate portion; an adhesive transfer roll journalled at its opposite ends in the first and second end plates, the lower portion of the roll extending into the adhesive; a pressure roll journalled at one end in the first end plate and at its opposite end in the free end of the arm portion of the frame, the pressure roll being parallel to the transfer roll and operative to press a sheet of material passing between the pressure and transfer rolls into contact with the transfer roll; and means for rotating the transfer roll.
Claim 2
Dependent Claim
179 words
Apparatus for applying an adhesive coating to one surface of a sheet of material, comprising: a tank for holding a quantity of adhesive in liquid form; a frame positioned within the tank and having a first end plate adjacent one side wall of the tank, a second end plate adjacent the opposite side wall of the tank, an intermediate portion connecting the first and second end plates, and an arm portion extending from the upper end of the first end plate in parallel relation to the intermediate portion; an adhesive transfer roll journalled at its opposite ends in the first and second end plates, the lower portion of the roll extending into the adhesive; a pressure roll journalled at one end in the first end plate and at its opposite end in the free end of the arm portion of the frame, the pressure roll being parallel to the transfer roll and operative to press a sheet of material passing between the pressure and transfer rolls into contact with the transfer roll; and means for rotating the transfer roll.
Claim 3
Dependent Claim
65 words
Adhesive coating applying apparatus according to claim 1 wherein the transfer roll has alternate raised lands and recessed grooves, the apparatus including first means projecting into the grooves of the transfer roll to prevent excessive accumulation of adhesive in the grooves and second means also projecting into the grooves of the transfer roll to prevent wrapping of the sheet of material around the transfer roll.
Claim 4
Dependent Claim
96 words
Apparatus according to claim 2 where the first and second means include a plurality of bent wire members, one member being provided for each groove of the adhesive applying roller and each member having a first upwardly projecting portion terminating in an end portion projecting into the corresponding groove on one side of the roller and a second upwardly projecting portion terminating in an end portion projecting into the corresponding groove on the opposite side of the roller the second portion serving as the means to prevent wrapping of the sheet around the adhesive applying roller.
Claim 5
Dependent Claim
70 words
Adhesive coating applying apparatus according to claim 2 wherein the first and second means comprise opposite end portions of wire members, one member being provided for each groove of the transfer roll, each wire member having intermediate portions extending downwardly from the end portions and below the transfer roll, a support member being carried by the frame and engaging each wire member to hold the wire members in aligned relationship.
Claim 6
Dependent Claim
49 words
Adhesive coating applying apparatus according to claim 4 further including a doctor bar adjustably carried by the frame for controlling the amount of adhesive carried by the lands of the transfer roll, the doctor bar being located closely adjacent the ends of the wire members comprising the first means.
Claim 7
Dependent Claim
40 words
Apparatus according to claim 5 where the lower end of the doctor bar and a lower portion of the wire members extend below the level of the adhesive in the tank so both are heated by the heated molten adhesive.
Claim 8
Dependent Claim
113 words
Adhesive coating applying apparatus according to claim 1 wherein the ends of the pressure roll are journalled in support plates which extend transversely of the axis of the pressure roll, the first ends of the support plates pivotally engaging pins carried by the first end plate and the free end of the arm portion of the frame, adjustment means being provided at the opposite ends of the support plates to permit adjustment of the position of the pressure roll relative to the transfer roll. 8. Apparatus according to claim 1 which includes a plastic housing mounting the tank, and surrounding all other components to provide a protective and insulating shield to the apparatus.
Claim 9
Dependent Claim
28 words
Apparatus according to claim 1 which includes a sheet heater intimately attached to the tank, and a variable thermostat control to effect actuation and control of the heater.
Claim 10
Dependent Claim
18 words
Apparatus according to claim 9 where the tank is made from cast aluminum with excellent heat conduction properties.
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |