Patent US3741537A successfully refreshed from Google Patents.
US3741537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for feeding the pile board of a sheet separating device
Assignee: Pentacon GmbH Foto und Feinwerktechnik
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Filing: 1971-07-16
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Granted: 1973-06-26
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Expires: 1991-07-16
Abstract
Abstract A photo-copying apparatus has a housing containing a stack receiving platform, means for separating and feeding sheets from a stack on the platform and a replaceable cassette. An aperture in the housing adjacent the platform enables the cassette to be inserted. Guides for supporting the cassette above the platform are provided which cassette has a withdrawable stack supporting slide which seals the cassette against entry of light. Means are provided for sealing the housing against light entry when the cassette is inserted. A stack of sheets in a cassette in the housing can be transferred to the platform by withdrawal of the slide.
Inventors
- 👤 W Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:24
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/585; G03B27/586; G03D; G03D13/00; G03D13/003
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
133 words
In a photo-copying apparatus having a housing containing a stack receiving platform, means for separating and feeding sheets from a stack on the platform and a replaceable cassette, the provision of: a. an aperture in the housing adjacent the platform through which aperture the cassette is inserted, b. guide means arranged in said housing close to said platform and adapted to guide the cassette above the platform, c. a withdrawable stack supporting slide in the cassette adapted to seal the cassette against entry of light and d. means for sealing the housing against light entry when the cassette is inserted wherein, when a cassette containing a stack of sheets is inserted into the housing through the aperture on the guide means, withdrawal of the slide effects loading of the stack onto the platform.
Claim 2
Dependent Claim
133 words
In a photo-copying apparatus having a housing containing a stack receiving platform, means for separating and feeding sheets from a stack on the platform and a replaceable cassette, the provision of: a. an aperture in the housing adjacent the platform through which aperture the cassette is inserted, b. guide means arranged in said housing close to said platform and adapted to guide the cassette above the platform, c. a withdrawable stack supporting slide in the cassette adapted to seal the cassette against entry of light and d. means for sealing the housing against light entry when the cassette is inserted wherein, when a cassette containing a stack of sheets is inserted into the housing through the aperture on the guide means, withdrawal of the slide effects loading of the stack onto the platform.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, in which the locking slide is adapted at one end to conform to the profile of the housing.
Claim 4
Dependent Claim
43 words
An apparatus according to claim 1, wherein the means for separating and feeding sheets is mounted in immediate succession to and on a level with the guide means and the platform extends from the aperture to the means for separating and feeding sheets.
Claim 5
Dependent Claim
92 words
An apparatus according to claim 1, provided with first and second pairs of rocking levers connected with the stack receiving platform which levers are mounted in the housing and form an articulated parallelogram, a manually operable lever mounted in the housing, a first spring connected between said manually operable lever and one of said first and second rocking levers, and a second spring adapted to urge the stack in the direction of the feeding means wherein the force exerted by said first spring is greater than that exerted by said second spring.
Claim 6
Dependent Claim
35 words
An apparatus according to claim 4, provided with a bearing point on the housing of the apparatus, for the rocking lever, which bearing point is adapted to form a fulcrum for said manually operable lever.
Claim 7
Dependent Claim
48 words
An apparatus according to claim 4, wherein said platform is provided with a shaft, one of said first and second pairs of rocking levers is pivotally mounted on the shaft and said manually operable lever is provided with a recess adapted to receive the end of said shaft.
Claim 8
Dependent Claim
80 words
An apparatus according to claim 4, wherein the manually operable lever is provided with a control pin and there is provided a segment lever rotatably mounted on the housing, a spring adapted to urge the segment lever into a first position and a slide connected with the segment lever and engageable with the stack, whereby operation of the manually operable lever causes engagement of the control pin with the segment lever and movement of the slide to align the stack.
Claim 9
Dependent Claim
56 words
An apparatus according to claim 7, wherein the slide comprises an arm having a free end disposed at an acute angle relative to a perpendicular axis when the segment lever is in said first position and is moveable towards the perpendicular axis to engage an edge of the stack when the manually operable lever is opErated.
Claim 10
Dependent Claim
88 words
An apparatus according to claim 7, wherein there is provided a shaft mounted on the housing and bearing the segment lever and the slide, a control lever mounted on the shaft and rotatable by the manually operable lever, a second slide mounted on the housing and situated opposite one of the lateral surfaces of the stack and spring means for urging said second slide into a first position, whereby operation of the manually operable lever effects movement of the second slide which effects lateral alignment of the stack.
Claim 11
Dependent Claim
45 words
An apparatus according to claim 9, wherein the second slide comprises an arm having a free end disposed opposite one of the lateral surfaces of the stack which free end, in said first position of the arm, forms an acute angle to a vertical axis.
Claim 12
Dependent Claim
40 words
An apparatus according to claim 7, provided with a locking lever mounted on the housing and provided at its free end with a recess engageable by the segment lever when the segment lever has been rotated through a predetermined angle.
Claim 13
Dependent Claim
76 words
An apparatus according to claim 11, wherein the manually operable lever is provided with a release pin, the locking lever is provided with a recess and a release pawl is mounted in said recess and extends into the path of movement of the control pin on the manually operable lever whereby return movement of the manually operable lever causes engagement of the pawl with the release pin and disengagement of the locking lever and segment lever.
Claim 14
Dependent Claim
94 words
An apparatus according to claim 1, in combination with a continuous exposure apparatus, wherein there is provided on a delivery side of the apparatus an aperture in the housing for receiving a cassette, guide means within the aperture for guiding the cassette, a withdrawable stack supporting slide in the cassette adapted to seal the cassette against entry of light and means for sealing the aperture against light entry when the cassette is inserted wherein a stack of exposed sheets delivered to the cassette can be unloaded by removal of the cassette from the housing.
References Cited (Backward Citations)
US3126122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |