US3736870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary imprinter with ink wheel having temperature controlled ink pad
Assignee: Lincoln Logotype Co Inc
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Filing: 1970-12-23
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Granted: 1973-06-05
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Expires: 1990-12-23
Abstract
Abstract A marking apparatus which includes marking and inking wheels mounted individually for rotation and with the peripheries thereof in operative engagement. The marking wheel includes a rim portion having a closed loop of rubber type removably telescopically fitted over the exterior thereof. The opposite circumferential edge portions of the type loop are secured to the wheel so as to prevent the loop from becoming separated from the wheel during rotation. The means for securing the loop to the wheel is in two parts, these parts being removably secured together such that removal of one of the parts permits facile replacement of the type loop on the wheel. The inking wheel includes an annular ink-retaining pad on the periphery thereof which maintains the type on the marking wheel continuously coated with ink during marking wheel rotation. Means are provided on the inking wheel for controlling the temperature of the pad such that transfer of ink from the pad to the type is always assured.
Inventors
- 👤 L Johnson
- 👤 H Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:30
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
217 words
For use in marking apparatus, an inking-wheel device comprising a supporting wheel having an annular ink-retaining pad on the periphery thereof, and means for controlling the temperature of said pad, said means including heat-producing means in heat transfer relationship with said pad, said heatproducing means being held against movement, means for actuating and deactuating said heat-producing means when the temperature of said pad decreases and increases, respectively, from a predetermined temperature level, said heat-producing means including an electrical heater, said actuating and deactuating means including a thermostat connected to said heater, said pad being in heat transfer relationship with said wheel whereby heating said wheel results in heating said pad, said wheel being mounted for rotation with respect to said heater and said thermostat, a shaft mounting said wheel for rotation, said heatproducing means including a body of heat-dissipating material mounted adjacent to one side of said wheel in heat-transferring relationship therewith, said body carrying said heater, said body being mounted on said shaft but held against rotation, the side of said wheel facing said body being provided with a plurality of raised heat-transfer portions, said body having on its side facing said wheel raised radiator portions juxtaposed with respect to the heat-transfer portions and arranged so as to clear each other during rotation of said wheel.
Claim 2
Dependent Claim
217 words
For use in marking apparatus, an inking-wheel device comprising a supporting wheel having an annular ink-retaining pad on the periphery thereof, and means for controlling the temperature of said pad, said means including heat-producing means in heat transfer relationship with said pad, said heatproducing means being held against movement, means for actuating and deactuating said heat-producing means when the temperature of said pad decreases and increases, respectively, from a predetermined temperature level, said heat-producing means including an electrical heater, said actuating and deactuating means including a thermostat connected to said heater, said pad being in heat transfer relationship with said wheel whereby heating said wheel results in heating said pad, said wheel being mounted for rotation with respect to said heater and said thermostat, a shaft mounting said wheel for rotation, said heatproducing means including a body of heat-dissipating material mounted adjacent to one side of said wheel in heat-transferring relationship therewith, said body carrying said heater, said body being mounted on said shaft but held against rotation, the side of said wheel facing said body being provided with a plurality of raised heat-transfer portions, said body having on its side facing said wheel raised radiator portions juxtaposed with respect to the heat-transfer portions and arranged so as to clear each other during rotation of said wheel.
Claim 3
Dependent Claim
51 words
The device of claim 1 in which the heat-transfer and radiator portions are in the form of annular ribs radially spaced apart and coaxial with respect to the axis of wheel rotation, the ribs of said wheel being radially and axially spaced from but interleaved with the ribs of said body.
Claim 4
Dependent Claim
87 words
The device of claim 2 in which the ribs on said wheel define a flat side and said body is in the form of a flat plate, a frame member supporting said shaft for rotation with respect thereto, the portion of said shaft supported on said frame member being eccentric with respect to the portion mounting said wheel and body, and a means on said frAme member for holding said body against rotation but permitting movement thereof due to rotational movement of said shaft in said member.
Claim 5
Dependent Claim
39 words
The device of claim 3 in which the last-mentioned means includes a socket which receives for relative movement therein a projection, the socket being one of said frame member and said body and the projection being on the other.
Claim 6
Dependent Claim
107 words
The device of claim 4 in which said heat-producing means includes electrical circuitry comprising an ambient temperature-sensing thermostat fixedly mounted relative to said frame member but spaced sufficiently from said body to be insensitive to the temperature thereof, a heat sensitive circuit-breaking device on said body in heat-transferring relation therewith, said last-mentioned thermostat and said circuit-breaking device being connected in series in an electrical power circuit connected to said heater, said thermostat having contacts that are normally open above a predetermined ambient temperature but which close for temperatures therebelow, said circuit-breaking device being normally conductive for heater temperatures below a predetermined temperature but non-conductive for temperatures thereabove.
Claim 7
Dependent Claim
42 words
The device of claim 5 including a second thermostat in series with said circuit-breaking device, said second thermostat being mounted on said body in heat-transferring relationship and having contacts normally closed for temperatures below a predetermined level but open for temperatures thereabove.
Claim 8
Dependent Claim
207 words
For use in marking apparatus, a marking wheel comprising a rim portion, a closed loop of rubber type removably telescopically fitted onto the exterior thereof, said loop having opposite circumferential edges, means for securing said loop at said edges to said rim portion against radially outward dislocation during rotation of said marking wheel, said securing means including two parts removably secured together, said wheel including two wheel sections removably assembled together, said two parts being carried by said two wheel sections, respectively, one of said wheel sections including an arbor and the other a hub telescopically fitted onto said arbor, detent means releasably securing said wheel sections against axial separation, means releasably securing said two wheel sections against relative rotation, said rim portion includes a cylindrical element on one of said wheel sections engaged by said type loop, and said two parts of said securing means include two axially spaced facing annular grooves, respectively, which receive in close fitting relation the opposite edges of said type loop, said means for securing said two wheel sections against relative rotation includes an axially extending groove in one of said hub and arbor, a projection slidably received by said groove and carried by the other of said hub and arbor.
Claim 9
Dependent Claim
207 words
For use in marking apparatus, a marking wheel comprising a rim portion, a closed loop of rubber type removably telescopically fitted onto the exterior thereof, said loop having opposite circumferential edges, means for securing said loop at said edges to said rim portion against radially outward dislocation during rotation of said marking wheel, said securing means including two parts removably secured together, said wheel including two wheel sections removably assembled together, said two parts being carried by said two wheel sections, respectively, one of said wheel sections including an arbor and the other a hub telescopically fitted onto said arbor, detent means releasably securing said wheel sections against axial separation, means releasably securing said two wheel sections against relative rotation, said rim portion includes a cylindrical element on one of said wheel sections engaged by said type loop, and said two parts of said securing means include two axially spaced facing annular grooves, respectively, which receive in close fitting relation the opposite edges of said type loop, said means for securing said two wheel sections against relative rotation includes an axially extending groove in one of said hub and arbor, a projection slidably received by said groove and carried by the other of said hub and arbor.
Claim 10
Dependent Claim
211 words
For use in marking apparatus, an inking-wheel device comprising a supporting wheel having an annular ink-retaining pad on the periphery thereof, and means for controlling the temperature of said pad, said means including heat-producing means in heat transfer relationship with said pad, said heat-producing means being held against movement, means for actuating and deactuating said heat-producing means when the temperature of said pad decreases and increases, respectively, from a predetermined temperature level, said heat-producing means including an electrical heater, said actuating and deactuating means including a thermostat connected to said heater, said pad being in heat transfer relationship with said wheel whereby heating said wheel results in heating said pad, said wheel being mounted for rotation with respect to said heater and said thermostat, a shaft mounting said wheel for rotation, said heat-producing means including a body of heat-dissipating material mounted adjacent to one side of said wheel in heat-transferring relationship therewith, said body carrying said heater, said body having a side spaced from and substantially coextensive with the side of said wheel, said sIdes being substantially parallel such that heat radiates from said body to said wheel, and means mounting and holding said body against rotation whereby said wheel may rotate clear of said body, being heated by radiation therefrom.
Claim 11
Dependent Claim
211 words
For use in marking apparatus, an inking-wheel device comprising a supporting wheel having an annular ink-retaining pad on the periphery thereof, and means for controlling the temperature of said pad, said means including heat-producing means in heat transfer relationship with said pad, said heat-producing means being held against movement, means for actuating and deactuating said heat-producing means when the temperature of said pad decreases and increases, respectively, from a predetermined temperature level, said heat-producing means including an electrical heater, said actuating and deactuating means including a thermostat connected to said heater, said pad being in heat transfer relationship with said wheel whereby heating said wheel results in heating said pad, said wheel being mounted for rotation with respect to said heater and said thermostat, a shaft mounting said wheel for rotation, said heat-producing means including a body of heat-dissipating material mounted adjacent to one side of said wheel in heat-transferring relationship therewith, said body carrying said heater, said body having a side spaced from and substantially coextensive with the side of said wheel, said sIdes being substantially parallel such that heat radiates from said body to said wheel, and means mounting and holding said body against rotation whereby said wheel may rotate clear of said body, being heated by radiation therefrom.
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |