US 5,930,548 AGranted

Development assisting apparatus for instant camera film

OwnerKatsuzo Watanabeinventor

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Abstract

A development assisting apparatus is provided which can give a finish of uniform quality and in a short time, irrespective of changes in temperature due to regional temperature differences or changes with the seasons. A case side clamping face 6 is provided on a front face of a case body 2, and an openable lid 3 with a lid side clamping face 16 provided on an inner face thereof, is hinged so as to be openable relative to the case side clamping face 6. A heating device 7 is provided on the case body 2, and in this case the case side clamping face 6 rather than the lid side clamping face 16 is heated so that an instant camera film 1 pressed and held between the clamping faces 6, 16 is kept warm. Due to the film 1 being kept warm by the heating and heat retention, then uniform development without irregularities is possible.

Claims9

Dependent claims

A development assisting apparatus for instant camera film comprising:

a case body;
a case side clamping face provided a front surface of said case body, said case side clamping face protruding outwards:
an openable lid openable and closeable relative to said case side clamping face, a lower end of said openable lid being pivotably mounted to a lower end of the front face of said case body, a lid side clamping face provided on an inner face of said openable lid and facing said case side clamping face;
a lid restraining member for holding said openable lid at an acute angle suitable for receiving the film when said openable lid is opened from a vertical orientation;
a resilient pressure applying mechanism for applying pressure to said film provided in said openable lid, said resilient pressure applying mechanism comprising a support for supporting said lid side clamping face to be movable inwards and outwards relative to said openable lid, and a resilient biasing member for urging said lid side clamping face toward said case side clamping face;
a heating unit housed inside said case body for heating said case side clamping face;
and
a heat retention unit housed inside said case body for maintaining a temperature of instant camera film which is pressingly clamped between said case side clamping face and said lid side clamping face, said heat retention unit comprising a heat retention control unit for maintaining said case side clamping face at substantially 27 to 35 degrees centigrade.

5 more elements

A development assisting apparatus for instant camera film comprising:

a case body;
a case side clamping face provided on a front surface of said case body;
an openable lid openable and closeable relative to said case side clamping face, a lower end of said openable lid being pivotably mounted to a lower end of the front face of said case body, a lid side clamping face provided on an inner face of said openable lid and facing said case side clamping face;
a heating unit housed inside said case body, including an electric heater for heating said case side clamping means;
a control case separate from said case body,
a heat retention control unit for controlling said heating unit to heat said case side clamping face unit for maintaining a temperature of instant camera film which is pressingly clamped between said case side clamping face and said lid side clamping face at substantially 27 to 35 degrees centigrade, said heat retention control unit being housed in said control case and said heat retention control unit and control case being connected to said case body and said electric heater via a wire;
a battery case separate from said case body;
a battery for said electric heater and said control unit housed within said battery case, said battery case and said battery being electrically connected with said electric heater and said control unit via a wire;
and
a belt attachment mechanism for fastening at least one of said case body, said control case and said battery case to a belt worn by a user.

7 more elements

Dependencies are inferred from the claim text.