nr 'I'lf' U?U'l'F.0 STi\'T'l.tS PA!l~T om OE 

In re appl1cat1on ot 

#m. F. fried~n, et al., 

F1leA Aug. 191 1035, 

Serial Mo. 361 868, 

Div. 48, Room 6'131 

F~bruery l, 193?. 

Eloctrlofll q,,1 tahtng Jfecban1an 

Bon. Comm1sa1.oner of' J'R ten tu, 

Sir: 

Re&pOn&i'M to ]'f!tent Offioe J\OtiOn datAd IUguat 21, 1936. 

It ia deairf'd to nmend cPrtftln of the alaima ~• tollowa: 

Claim 7, lines 5 And 6, oenc~l " eenring tor driving " an4 

eubsti'\U'9 - - '\IBrleble driTing units tor operating - -

Claim 8, laat line che.nse " goAring n to - - uni'• - -

Claim 10, line 4, inBArt - - VArinble - - before n trtotSon • 

Ole11'1 l~, Uno 3, 11ftftr " rtaPAnrt " 1ns"rt - - comprising 

altpping clr1W' elemanta - -

Claim 14, 11ne ~. rfter ~ including " in&fl~t • - al1:t>-d1ak 

4r1"fe elllJl18nta end - -

Claim 15, line 2 cancel " nnd " same claim, UBe 3 arta:r 

•rlnga • insert - - find - - tine 4 1 cAnoel " random~ and aubatttute 

- - 1!'1'9gular - -

Claim 17, line 4 attar q tndepnndently # lneert - - an4 

lA\pproved for Release by NSA on 09-05-2013 pursuant to E. 0. 1352§ 

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Claim 18, line 3 otter " mo~na " 1noar\ - - 1nalud1ng allpplng 

trletion drive elements • -

Olt!im ~o, Unv 4 1 before " dr1Y1Jl6 ,. insert - - alip-d1ak - -

Claim sn, Una 5 csncel .. rAni.\om " and eub11tl tuto - - fll\J' - -

Clnill'l r.2, U ne 3 cancel " n.ndom " end au.bstt \ute - - tol'tuUoua - • 

Claim 2:J, Una :? before " provided " lnBflrt - - ench - -

4 tine s, 11t t.he end or the line attar .. otbAr " 111aert - - and eleotrloat~ 

1n\errela\a4 - - I.1ne 5 1 nttar " aavlcea '' 1nao:t - - whol"l!lby the aontrlota 

nre cauae4 - -

W1 \b rftapect to the vln• or the rxnn1nPr th•~t Rppllcanta• S)"8tem 

does not tttaoloae true l'ftnt'lom optarflt1.011, 1t ta oontenaed that true randcm 

operation 1• a teAtu:re or the present 117stem and this contention la baae4 

u.pon tba toot tbot the friotionnl dr1vaa here employed lntroduoei!l J true 

wr1able teotor, •hloh arises trom th• eUppoco inherent tn a drive ot 

ihta ahe:rocter, and pe.r"tlaularly ao, b7 reason of the 1r:ntgulnr movement 

ot drift dtaka 14 end 14' wh1oh nre c11used to slide over the :races or the 

driven elemnta 16 and 16' by- tho Rct1.on or the cm!l ttlf'manto. Thia sllppap 

f'aotor wlll be moJ"n Appttrent v;'1en t ~. 18 noted that the drive cUaka ore 

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oauae4 to slide in an irregular 11wu1ei• toward and aua.y f'raa the tulorun point,~ 

or asea ot tba resp8ot1ve driven elell!ftnta lG ~nd 16' • Tho ellpJ>Ae• ta 

turt!Mtr auf!:llllRn'ed by the raot that the evst~• contemplntAa rotnt1on ot the 

''IO aom1)011enta tn oppoal te aensea. ti tol lows t.l1et P.n opf'raUon which at . 

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ell times dePflnda upon on unpredicteble VRr1Able is properly to be 

l"E'gorded fta ft true rt"ndom nnd for't_!!.1~ operr.Uon. 

That i>nri o'f" tht? op~r,,.t1.1n tlt-eorthrd on rA;n 3 or the atieolf• 

1oat1on, oonpr1aed 1n the laet tive lines, iH bAlleved to fully aupport 

tbe foregointt argument ; end the 1ntnndment to introduao tl\e ?lriable 

rel1o4 upon is bolieved to be e clear impl 1..cetion l"rul'I the lnngual!;e employed 

wben it is con:s14ared t""·Rt the tnhf'rent l'lemont or V"r1RbU1 ty oonat1 tutea 

an eaaen"Unl taet11re of' the mechanism fl 11 1 Uustrrttnd and upon which the 

eaaerte4 theory ~t rnr.dom ope1ation 1a ~~ediOAtad. The r.orda " trtct1onal 

et"'feot .. and " cone·nutl7 VAryinl! speeds " give arnpbl'la1a to thla conten'Uon. 

At!Ain 1 t 1~111 be notPd thnt tho t1•0 driven gears 2 arid a•, •1 t.h 

wh1oh drive geer l mesbea, are ~rov1ded with ditterent numbers ot teeth 

( aee lines 8 P.nd \1, .) pBgo 3of the spAc1 f1oet1on ) • 'l'hh conatUutea 

a 41tterent1Al s~~ri~s arranttonent. It ta beliaved that th1a difteranttal 

arJ"lut«ement will contribute or trnd to oontr1buta to the slippage erraat 

of ench 'flrtotion driw, thus providing rn• added ele1119nt or variab1Hty, which 

ta further aooantuAtod by the rAct thet nn oppou1t~ rotAt1onnl 110vanont ts here 

involved. 

Admlttlnp tor fhe purpos9e of the presont nrgWIM9nt th~t ~•rjodlatty, honvar remote, woul.'1 rao11lt from t~e use of cam elem.ftnta, nnevezthftleae, eaoh of tho sllppin, rrictionnl ~rives 1ntroduc~a into an oiherwiae 

oomplex aequenoe ot operotiona truo Wlrlable rnotora which render aalculatton 

ot J&D1 pftrlod tmpoaa1ble. Jn n 11stem or c~nplox operettona auoh na here 

41aolosed and in 'f:hicb. conatnnta .-nd v.,1 r1 Ablna are combined, the reaul tftllt 

muet be ~~rtAble nn4 unpredictable. Thus, true random operation must ot 

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1 .. oeaa1•Y obereoter198 a mechanlam ao aona,ltut•d. 

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( "hll• St •Y btt true that ODlY' ac'lJaoent oon\Aots oan bn operatect la 

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,{f 1 auoaeu1on, when the claim ta aonaiderAcl in its entirety an4 '&be 

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,/ , oablnaUon no now raoi ted lnoluding \be A9n411lent tn,J'Octuolng tbe o/ I :>. i 

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/ ' wol"ll " variable ", 1 t ta thoUfrh\ t·1et the whole oporAtion la olaa;ol~ 

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/1 , r•4om end tor,ultoua, ao that 'be aonoludlng line ta not lnoonatstent 

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1 / / , ' wt th tbe phl'l\ae " in a random order " • In tht s oonnaat ion• alalms 'I 

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' ~ ; I !j'' ~· ,/ ~and the dependttn\ clnims 8 f'nt!t 9 nrwe ~ll been amended 1.o overcome tbe 

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/ ,. j poun4 •inly relied upon for thf!tr rejection. 

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J\ 18 tho;igbt 'thiat f•] a il!l 1;1 f18 now Plllf'nded t 18 OlGU' 

ot any or tho citations ; ~n~ ih~ ~oe oppliea to claim 18 aa no• nner.de4. 

As to the qu$rf involving clnlm 14,, line 3, 1 t ia obvtoua 

thR' the Rxam1a.r•e 4uee,lon ralat~• to cle.im 15 alnee tbe woftt • 1ta • ooour~ 

ln •tie third. llnR ot the l.Dtter ola1ia. 'i:'he eteoedent or the word "ita • 

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:ln. alsta 18 ta anawc.red by the phrase " one of aald aomponents " • However, 

'hi• ola11D 15 haa been ._n!Sad to alArUy the •aning and la bel1eve4 to I /' 

; be tn order. 

Clala. 14 as nmenda4 la alGo thought to be olear ot tbe an 

an4 now properlJ' realtee a true randmn operation in the light of the tore• 

Aa t~ thA queatSon lnYolvtn~ the word " 4l~teJ"RDt1ally • 

u found ln cla1aa 19 anc.\ 20 tm4 the ••• 1• ae~rally ~ru of ot.bel' alal• 

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REF ID:A67816 

auc!l RB 2:S where the 8mll8 word oocuro, it is auttletdt- to sbte that 

19ar1ng system 2, 2' ~nd l etteota a atrrarenttal opgratton. In 

olalm 23 the t1DIB ~nrlnt.lon mny ho asld to depend upon tho aitr4trentlal 

OP9l"Bt1on ud 1a qui b oonalatent with 'ha uae or the 1110r4 " 4U'terentlal~ " 

in aeld olebl. Thia cletm P:5 hRe been amenda4 to OT&rcoma the nxamlnar•a 

objeciton on the er<>und or 1n4et1n1tene•• • 

The refnrencoa h~ve bePn const~~re~, hutll)ne or the three 

oUe\lons dieolooas a structure or th'J chnr11ctnr CRlled tor by the olaSma 

tn the to1111 ln whioh they are now prea•nted. In prrtloulRr, noth1D8 1R 

~he no'UJ'a of a 'll!lrtable or &lipping drive or fr1ot1on t1P8 le foun4 1n 

an:r one ot t\iea~ patents either alonfl or in Any combinntton approximat.lng .1 

tha pl'eaent in'VIPDtlon. No detailed diaoueoion ot tbPae patents ta 4eema4 

neoeaaarJ and 1t 11 suftlo1ent to point out thnt thoae alaim• poaltl~el.7 

nJected on the ettad ert tu.Te bfilen am~nded to avoid the same. 

Favorable reoonslderBtion ts cmirteoualy requoat~d in tl8 

11aht or th~ foregotns. 

HeepttctfUllJ' aubm1tte4, 

B;y: 

Attorner 

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