US3660208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic heat wheel
Assignee: Videojet Technologies Inc
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Filing: 1969-12-29
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Granted: 1972-05-02
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Expires: 1989-12-29
Abstract
Abstract A heat transfer wheel including a label transfer pad to carry address-bearing labels from a label pick-up station to the point of application where the addresses are transferred to an article through the use of heat, heating means in said label transfer pad, said transfer pad being thermally insulated from the rest of the wheel to facilitate heat retention and distribution; vacuum passage means leading to the label bearing surface of the label transfer pad to enable labels to be temporarily attached thereto; and thermostatic control means in heat exchange relation with said label transfer pad for regulating operation of said heating means in response to temperature conditions of said pad so as to maintain said transfer pad at a uniform temperature condition.
Inventors
- 👤 Leo J Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:51
CPC Classifications
B; B65; B65C; B65C9/00; B65C9/20; B65C9/24; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768; Y10T156/1771; Y10T156/1773; Y10T156/1776; Y10T156/1778; Y10T156/178
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
287 words
In a heat transfer wheel for bringing labels having address information thereon into transfer contact with articles to be labeled, the combination of: a base member adapted for rotatable mounting; at least one label transfer pad having a surface area adapted to support a label thereon; heating means for heating said pad surface area including at least one resistance type heater; an energizing circuit for said heater; means for mounting said pad on said base member in insulating relation thereto whereby to minimize loss of heat from said label transfer pad through said base member; means to permit vacuum to be applied to at least a portion of said pad surface area so as to temporarily hold a label on said pad surface area and enable said base member to transport said label into contact with an article to be labeled, and control means for regulating operation of said heating means whereby to maintain said label transfer pad within a predetermined temperature range, said control means including a temperature responsive switching element in heat exchange relation with said label transfer pad and in series with said heater circuit, said switching element being adapted on a predetermined low temPerature condition of said label transfer pad to close whereby to energize said heater and on a predetermined high temperature condition of said label transfer pad to open whereby to deenergize said heater; and signal light means to visibly indicate temperature conditions of said label transfer pad, said light means being in parallel circuit relationship with said switching element such that on opening of said switching element, said light means is activated and on closure of said switching element, a bypass circuit is established effectively rendering said light means inoperative.
Claim 2
Dependent Claim
287 words
In a heat transfer wheel for bringing labels having address information thereon into transfer contact with articles to be labeled, the combination of: a base member adapted for rotatable mounting; at least one label transfer pad having a surface area adapted to support a label thereon; heating means for heating said pad surface area including at least one resistance type heater; an energizing circuit for said heater; means for mounting said pad on said base member in insulating relation thereto whereby to minimize loss of heat from said label transfer pad through said base member; means to permit vacuum to be applied to at least a portion of said pad surface area so as to temporarily hold a label on said pad surface area and enable said base member to transport said label into contact with an article to be labeled, and control means for regulating operation of said heating means whereby to maintain said label transfer pad within a predetermined temperature range, said control means including a temperature responsive switching element in heat exchange relation with said label transfer pad and in series with said heater circuit, said switching element being adapted on a predetermined low temPerature condition of said label transfer pad to close whereby to energize said heater and on a predetermined high temperature condition of said label transfer pad to open whereby to deenergize said heater; and signal light means to visibly indicate temperature conditions of said label transfer pad, said light means being in parallel circuit relationship with said switching element such that on opening of said switching element, said light means is activated and on closure of said switching element, a bypass circuit is established effectively rendering said light means inoperative.
Claim 3
Dependent Claim
27 words
The heat transfer wheel according to claim 3 in which said control means includes a temperature responsive element in heat exchange relation with said label transfer pad.
Claim 4
Dependent Claim
198 words
In a heat transfer wheel for bringing labels having address information thereon into transfer contact with articles to be labeled, the combination of: a base member adapted for rotatable mounting; at least one label transfer pad having a surface area adapted to support a label thereon; heating means for heating said pad surface area; means for mounting said pad on said base member in insulating relation thereto whereby to minimize loss of heat from said label transfer pad through said base member; means to permit vacuum to be applied to at least a portion of said pad surface area so as to temporarily hold a label on said pad surface area and enable said base member to transport said label into contact with an article to be labeled; control means for regulating operation of said heating means whereby to maintain said label transfer pad within a predetermined temperature range; said heating means comprising at least two individual heat sources and; means for energizing one of said heat sources continuously during labeling operation of said transfer wheel, said control means serving to operate the other of said heat sources in response to temperature conditions of said label transfer pad.
Claim 5
Dependent Claim
198 words
In a heat transfer wheel for bringing labels having address information thereon into transfer contact with articles to be labeled, the combination of: a base member adapted for rotatable mounting; at least one label transfer pad having a surface area adapted to support a label thereon; heating means for heating said pad surface area; means for mounting said pad on said base member in insulating relation thereto whereby to minimize loss of heat from said label transfer pad through said base member; means to permit vacuum to be applied to at least a portion of said pad surface area so as to temporarily hold a label on said pad surface area and enable said base member to transport said label into contact with an article to be labeled; control means for regulating operation of said heating means whereby to maintain said label transfer pad within a predetermined temperature range; said heating means comprising at least two individual heat sources and; means for energizing one of said heat sources continuously during labeling operation of said transfer wheel, said control means serving to operate the other of said heat sources in response to temperature conditions of said label transfer pad.
Claim 6
Dependent Claim
39 words
The heat transfer wheel according to claim 3 including means for signaling operating temperature conditions of said label transfer pad; said control means being adapted to actuate said signaling means on deenergization of the other of said heat sources.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |