US3634007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conditioning equipment for the copy paper supply in copying machines
Assignee: AB Dick Co
•
Filing: 1969-10-02
•
Granted: 1972-01-11
•
Expires: 1989-10-02
Abstract
Abstract A machine of the photoelectrostatic copying-type, including a relatively small, confined chamber in which photoconductive sheet material is placed for automatic feeding into the machine. A system is provided for conditioning the atmosphere in the chamber to maintain it at a predetermined level of relative humidity to keep the photoconductive material from becoming distorted and damaged.
Inventors
- 👤 Joseph A Verderber
- 👤 James A Fortcamp
- 👤 James A Kolibas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:53
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6502
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
307 words
A copying machine using photosensitive sheet material, comprising in combination: a. a confined chamber for receiving and storing sheets of photosensitive material, the chamber including inlet and outlet ports in spaced relation; b. means operatively connected to the chamber for feeding photosensitive sheets, one by one, from the chamber into the machine; c. means including a general operating circuit for making copies on the sheets as they issue, one by one, from the chamber; d. humidity adjusting means comprising: 1. a heater disposed in the chamber for heating the atmosphere therein to reduce the relative humidity; 2. hollow conduit means connecting the inlet and outlet ports, and disposed outside the chamber; 3. a heatless, vapor generating humidifier interposed in the conduit means in air communicating relation with the chamber, for adding moisture to the atmosphere in the chamber; e. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the heater and humidifier to maintain the relative humidity in the chamber within a predetermined optimum range, said controlling means being constructed and arranged to activate the heater at a predetermined humidity level defining an upper margin of said optimum range, and activating the humidifier at a predetermined humidity level defining a lower margin of said optimum range, and terminating the operation of the heater or humidifier only after the humidity level has significantly overrun the respective margin to place the humidity level well within the optimum range; and f. power connections for the machine providing branching circuitry supplying power to said general operating circuit via an on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the copying machine can be set without danger of disturbing the power to the humidity adjusting means and control means.
Claim 2
Dependent Claim
307 words
A copying machine using photosensitive sheet material, comprising in combination: a. a confined chamber for receiving and storing sheets of photosensitive material, the chamber including inlet and outlet ports in spaced relation; b. means operatively connected to the chamber for feeding photosensitive sheets, one by one, from the chamber into the machine; c. means including a general operating circuit for making copies on the sheets as they issue, one by one, from the chamber; d. humidity adjusting means comprising: 1. a heater disposed in the chamber for heating the atmosphere therein to reduce the relative humidity; 2. hollow conduit means connecting the inlet and outlet ports, and disposed outside the chamber; 3. a heatless, vapor generating humidifier interposed in the conduit means in air communicating relation with the chamber, for adding moisture to the atmosphere in the chamber; e. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the heater and humidifier to maintain the relative humidity in the chamber within a predetermined optimum range, said controlling means being constructed and arranged to activate the heater at a predetermined humidity level defining an upper margin of said optimum range, and activating the humidifier at a predetermined humidity level defining a lower margin of said optimum range, and terminating the operation of the heater or humidifier only after the humidity level has significantly overrun the respective margin to place the humidity level well within the optimum range; and f. power connections for the machine providing branching circuitry supplying power to said general operating circuit via an on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the copying machine can be set without danger of disturbing the power to the humidity adjusting means and control means.
Claim 3
Dependent Claim
14 words
hollow conduit means connecting the inlet and outlet ports, and disposed outside the chamber;
Claim 4
Dependent Claim
14 words
hollow conduit means connecting the inlet and outlet ports, and disposed outside the chamber;
Claim 5
Dependent Claim
294 words
In a machine of the class of copying and duplicating machines embodYing a part or using supplies which tend to deteriorate in response to deviation of humidity conditions from a predetermined optimum range and having a general operating circuit which is switched on and off as the machine is to be used or left idle, the improvement comprising: a. a housing constituting an element of the machine, at least a portion of said housing constituting a chamber embracing said humidity-sensitive part or a store of said humidity sensitive supplies, and being constructed and arranged to inhibit rapid air exchange between said chamber and the ambient atmosphere whether the machine is operating or not; b. controllable humidity adjusting means mounted on the machine frame and operable to adjust the relative humidity in said chamber; c. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the humidity adjusting means to keep the relative humidity in the chamber at values within said predetermined optimum range, said controlling means being constructed and arranged to activate the humidity adjusting means at a predetermined humidity level defining a margin of said optimum range and terminating the operation thereof only after the humidity level has significantly overrun said margin to place the humidity level well within the optimum range; d. main on-off switch means for controlling said general operating circuit; and e. power connections for the machine providing branching circuitry supplying power to said general operating circuitry via said on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the machine can be set without danger of disturbing the power to the humidity adjusting means and the control means.
Claim 6
Dependent Claim
294 words
In a machine of the class of copying and duplicating machines embodYing a part or using supplies which tend to deteriorate in response to deviation of humidity conditions from a predetermined optimum range and having a general operating circuit which is switched on and off as the machine is to be used or left idle, the improvement comprising: a. a housing constituting an element of the machine, at least a portion of said housing constituting a chamber embracing said humidity-sensitive part or a store of said humidity sensitive supplies, and being constructed and arranged to inhibit rapid air exchange between said chamber and the ambient atmosphere whether the machine is operating or not; b. controllable humidity adjusting means mounted on the machine frame and operable to adjust the relative humidity in said chamber; c. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the humidity adjusting means to keep the relative humidity in the chamber at values within said predetermined optimum range, said controlling means being constructed and arranged to activate the humidity adjusting means at a predetermined humidity level defining a margin of said optimum range and terminating the operation thereof only after the humidity level has significantly overrun said margin to place the humidity level well within the optimum range; d. main on-off switch means for controlling said general operating circuit; and e. power connections for the machine providing branching circuitry supplying power to said general operating circuitry via said on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the machine can be set without danger of disturbing the power to the humidity adjusting means and the control means.
Claim 7
Dependent Claim
195 words
a heatless, vapor generating humidifier interposed in the conduit means in air communicating relation with the chamber, for adding moisture to the atmosphere in the chamber; e. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the heater and humidifier to maintain the relative humidity in the chamber within a predetermined optimum range, said controlling means being constructed and arranged to activate the heater at a predetermined humidity level defining an upper margin of said optimum range, and activating the humidifier at a predetermined humidity level defining a lower margin of said optimum range, and terminating the operation of the heater or humidifier only after the humidity level has significantly overrun the respective margin to place the humidity level well within the optimum range; and f. power connections for the machine providing branching circuitry supplying power to said general operating circuit via an on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the copying machine can be set without danger of disturbing the power to the humidity adjusting means and control means.
Claim 8
Dependent Claim
195 words
a heatless, vapor generating humidifier interposed in the conduit means in air communicating relation with the chamber, for adding moisture to the atmosphere in the chamber; e. means responsive to the relative humidity of the atmosphere in the chamber for controlling operation of the heater and humidifier to maintain the relative humidity in the chamber within a predetermined optimum range, said controlling means being constructed and arranged to activate the heater at a predetermined humidity level defining an upper margin of said optimum range, and activating the humidifier at a predetermined humidity level defining a lower margin of said optimum range, and terminating the operation of the heater or humidifier only after the humidity level has significantly overrun the respective margin to place the humidity level well within the optimum range; and f. power connections for the machine providing branching circuitry supplying power to said general operating circuit via an on-off switch, and to said humidity adjusting means and said control means by direct conductors bypassing said switch, whereby the operating or idle condition of the copying machine can be set without danger of disturbing the power to the humidity adjusting means and control means.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |