EVALUATION OF SPECIAL DRYING TECHNIQUES - MICROWAVE AND VACUUM DRYING.

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001400020012-2
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: June 7, 2001
• Sequence Number: 12
• Publication Date: March 22, 1967
• Content Type: MF

coNFikatoL
Approved For Release 2001/08/13 : - u04747A001400020012-2
ILLEGIB
N151C/TDS/D-750-67
22 March 1967
MEMORANDUM FOR: Deputy Chief, Development Staff, TbS
TdROUGH Chief, Support Systems eranch, OS/TDS
SUbJECT Evaluation of Special Drying Techniques - Microwave
and Vacuum drying.
:. On 8 tarch967 a call was made to Westover APB. Contact was made
25X1A with Discussion included all commercial organizations the
Air Ante had contacted in relation to 91crowave and vacuum drying.
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that
the
Patterson An, woul
by this f
indicated
be aware of
rm and by the
b. This cor-
poration built a 35mm microwave dryer for the movie industry.
They lack interest in continuing a development program for
wider photographic materials.
C.
Mie.rowave Dryer Proposal
Indicated that this particu ar concept held little promise.
periental
microwave waveguides de
gave us a contact -
that had conducted vacuum
forried us that
in drying photo
ined for other
2. 13 March 1967
discussion was held on m
been considered.
microwave dryiN o
been transferred to anoth
that would have
had per
ap ic materials in
posee. ile also
and also indicated
116 experiments.
was contacted. A
rewave dryln and what. photographic applications had
indicated that preliminary experiments in
lad been perforwed but that this of work had
r department headed by He indicateJ
knowledge of work performei with vacuua drying.
DECLASS REVIEW BY NIMA / DoD
CONFIDENTIAt"
Approved For Release 2001
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3. On 14 March 1967
of the previous eperimetns perforrned by
for drying photographic films; although wor
when the transfer of this responsibility occurred
*sled if any work is being performed in vacuum drying. He in
IIIIIIIas involved in a evebination of microwave and vacuum drying but 'not
thenphotographic area knewledge of drying photographic
materials is limited.
utilizing
nued in
was
cated that
4. On 14 March 197 of Wright-Patter Are was
contacted. and his department are involved in monitoring the
contracts Edf aestover in microwaves and vacuum drying.
a. An investigation contract in vacuum drying is being
conducted for Wright-Patterson AFB by in Calif.
Vacuum chambers used in food processing are being utilized
in the drying experiments of phielographic films. Separate
experiments are being conducted to maintain a vacuum in an
unheated chamber where film is moved in and out of a gate,
b, The best information on microwave drying e ui ment
or breadboardsould be obtained from
in
S. On 14 March 1967
Limited) was contacted.
microwave fila dryer bre
and runs at about four fee
In there is
an
ax
built a
oar, prototype that utilizes 1500 watts or power
per minute. This can be demonstrated at any time.
a dryer for paper prints using microwave techniques
at two feet per minute. Neither the film nor paper dryer have been
o color materials.
25X1A 6. As the only prototype equipment u
paralleling our requirements, is in
would be desirable to determine the app
own requirements within NPIC. Travel orders are
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e tee
prepared for
25X1A 7. An attempt WM made to contact Of
25X1A is on TOY for several weeks. te will,e contacted
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stribution;
Original a 1 - Addressee
1 - Originator
3 - TDS/Da
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MENTAL
ip.
An.
returns,