0 REF ID:A67729 0 

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ra l'8 app11cati~n at 

:.m. !'. 1'r1e4mnn, et al., 

11ie1 ~•· ie. ums, se:r1al "tlo. $6,888, 

ltlactrtenl SW1tcll1n8 ~·~eoban1n 

lion. COIDiaeloner ot Pn10nts, 

G:lr: 

Dl v. 48, Y.loom 6'151 

!ebTUBT'J' 1 1 1937. 

nesponatw to Patent Office Aotion ~at~d IUgust 21, .1956 •. 

Iii 18 tleeire~ to amen4 ce:rtaln ot the claims ea followa: 

Clalll 7, l lnea 5 anc1 &, oancel " ceerlng tor dri vtns " and 

aubatiwte - -·'Variable 4r1Tlng miite tor opere,tine - -

ClRim R, lo.st lln.e cbB.nse • soarins " to - - ·unite - • 

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Clam 10, ltno 4, insert - - verlnble - - 'before " friction " 

Clein 13, line 2, atte:r "' l!lftf'nG "' insert. - - aonpria103 

slipping 41-1,,. e181!.8!1.ta - • 

Cleta 14, Uno s, Pfter •· 1nclu.'11ns " tnSRrt - - sl1p-disk 

4rtve elP!llle'Dt• end - -

01.etm 15, lino 2 ae.ncel p antl " sane claim., line 3 after 

"ring• ~ tnseri - - and - - Line 4, cancel M randaa~ and aul'tatitute 

- - ir1'8gul8J" - -

Cl"ia 17, line 4 After q ln4e~nndontly • insert - - and 

.ariebl7 - -

lA\pproved for Release by NSA on 09-06-2013 pursuant to E. 0. 1352§ 

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C'!leim 18, line 3 attar ._ mer•a.a " inaert ... - 1nelud1nc allpplag 

friction d~ive ~lcoenta - -

:lr.in ::·n, line 4, betore •• 4riv103 " 1noort - - sllp-dtek .;. -

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~ln1a 211 Uno 3 ca.noel • l'fln4om " and eubatl tutAJ - - 11317 - -

C\n1tl P.2, Une ~ cancel " nnd01a '' aad m1bst1 tute - - tortu1toua - -

Claim I!:>, l1na 2 before ~ peovtdo4 p inl!iert - - each - -

tir.e 5, •!t tho end or the line af'tsr " ottier " lnser' - - ~ eleotrical.17 

tnterrelatad - - t.1ne 5, oftar "aevicee "' tne~:·t - - tib.oroby tbs aon1Bota 

r.re C C'.1884 • • 

doeo r.ot M tlC lo~ true mndoa opeil'fl tion, 1 t 1s oontencio4 tba t true rendaa 

oger!i Uon i a a fe11t11re ot tho preGent system end this contention is base4 

u.pon the> tact tbot the fricticmel Cb'1v1111 here emplofftd lntzoducc.' a true 

variable 1\:ictor, Tlb1oh ar~aea trm the slipPfl(;o iuherent in a 4rtve of 

t~1G ohor.tctC?r, end part1culerl1' ao, by reaaon. or the trngular mowiwnt 

ot drive d1aka 14 eqd 14' ~h1ch R:rfl ceu&e4 to slide over the faces or the 

. . 4r1von elcoon.te ie end l.6' b~ tlio t>-ct1.on ot' tho cva e~nta. Thi• slippage 

f.ttetor v:tll he no:rn Apy»-:-ent \i"'en 1 t ts noted thfft the dr1Te a1sk11 ore 

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coueed to sU4e in R.n lrref,U.lar wmner icml!l'4 end &.1f81 fl'Cll the tulorum po1nt$ 

or azoa of the r~speattve 4rivon nlenonta 16 ~nd 16' • "!'bD elippfffe 18 

rurtbor aup,msntea by tM f>nct that the e7utftn contem.plat~ rotnt1~ ot the 

tm eoal'Onenta in oppoot.te aeneea. It toltowu thftt r.n opr-ratlon whicb at 

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all tilua depends upon en unpreiU-ctable nriAble is properly to be 

reigarde4 as a \rue random end fortuitous opcrr.tion. . -. 

That ~~l"t of t:hc oparetion described on :{'AfB 3 or the e~ecit-

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1aution, comprised in ~he l.aa't ti w lines, .1B believed to tullJ aapport . . 

the toregotng argw:ient i end the 1ntendment to in trotluoo th.e ~rieble . 

:relied upon is bolleved to ·be e. clear implicetion truz;j the lnri&:ia,-:-e employee! 

when it is conai4ered t;Rt tho ·1nherent clamaht or ~~riability QOnatitutea 

an eeBfJJltial f11eture of' the mechanism. ns illua·trnted and upon 11hiah the 

asaer'tea \hllor1 ~t rondom operation 1e ~rediaatoa •. · The wor4a" friction.al 

ef~ect "' and ... cons~.11ntl1 VR!'11ng speeds " give emphasis to this con ton tion. 

Aea1n 1 t ,;111 be notPd that the tm. clriirnn. 69ars 2 ena 21 , wt t.h 

which drive gear l mesMe, are }'rov14ed With d~ttoreut numbers · .. or teeth 

( see lines 6 en4 9, :.):: pBee 3of the spact f'icetion ) • ·'J'h.10 constitutes 

a 41ttorent1Rl gol'lring arrangocient. It ia believed that this di.tf'erontial 

arl'81lf!9?11Gnt will contribute or tf'nd to contribute to the slippsr.e effect 

ot each fri.otion 4rhe, thus prov1dinr, an added ele!m'nt of v~riab1Htr, "Which 

1• turther accentuAto4 by t.be .fftct thst an oppoaitft rot8ttonol r.x>ve.r.aent is here 

involved. 

1c1ty, ~~vnr remote, wou\A reo·.1J.t from t~e uae of oam 9lemflntL, ·nev~ 

t~lesa, eecb ot thB ol1pp1nf trict1on~1 ~rives introduces into an otiu.rwiae 

complex attquenoe of oper~tions truo "fllriablo tnctor• which ~ender calcnletton 

ot any 'P~riod 1mpoaa1ble. In n oyatem or conplex 01~nrntione s-.ich P.8 here 

dtacloaed and in 'lrbtch conr.tn:nts pnd vr'r~ ebles are combined, tho reaul tnn't 

mue:fl he v1 r2.1Jble an4 wapredtctable. Thua, true random. operction must of 

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~ceaatty e?!erecterize a m.echanlam so con.atttuted. 

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'! :.s to tl\11t ··."xeniniPT's .-ue.ry wi\h reepuct to claim 10, 

. While it rrr::y bfl true that ODlY' edj11cent contacts can be opermted in 

,~.· i aucoe.aston, when the claim. is considered in its entirety and the 

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,:/.' .:. CIDb1nnUon fts not1 raci ted lncludins ttia RB9:ndment introducing tba 

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word 1t variable .. , . 1 t ta tho1:14rht t:·1at t.be whole oporP.tton. is claa:-1.y I 

I ,'. rudom and fortuitous, eo that the concluding line ia not 1nconaiatent ;. 

. i f . 111. th the pbr&ae " 1n a random order ~ • In tbi s connttot 1011, claims 7 r '\ • '· 

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: ground mainly relied upon tor their rejection. 

:rt ts tnourbt t~t cl.:c.1m. l& ••D no• Pl!lf'nded, 1a clear 

ot an1 of t~ citations ; sr.e th.ft oeoe applies to el.Bim 18 as now D!lended. 

.As to the query involviue: claim 141 lire 3, 1 t is obYious 

thA' the ~1'D8r'a queation relat~• to claiaa 15 since the word " ita " occur¥ 

1~ \b.e third llnlll ot the l.Gttcr claim. ';'he antecedent or the we.Id ''its .. 

in claim. 15 1a answorel! by the p.b.rose " ou of said components " • Hovever, 

'this claim 15 has been &llDn:!ed to alnri-ty the meaning and ls believed to. 

be in order. 

Cletm 14 as nm.ended is al&o thought to lie clear of U18 art 

and ftow properl.Y recites a tr~e randcm op~rotlon 1n·the light of the toregoinf'. ergwaent. · 

· A.a t ") the question 1nwl v1 DY. the vo 1\1 " difteren-tiall.7 _. 

a.a found in elaima 19 and 20 and the aame ia p .. ra~ true of other alatma 

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auch na 23 when the Bne 1i1ord oocuro, it 1& aut't1c1mJt· to atl'!te thflt 

the tem d1ttannt1ell.7 1a aptly used 1n view of tbn fpct tbat the 

geer1ae ayetm 2, 2' .n!ld l ettects a cU.tf'oront1al operation. In 

olaim 23 '\he ·um w.ir1atton ~:7 bo mo1d to depend upon thn d1ft~re.nt1al 

ol)eration and ia qu1tn cone1atan"t wttb tbe uee ot t:tae word "'dlf'torentiel~ •• 

in aald claim. flats cl~lm t?3 hoc been a:!endetl to ovM·com 't.h!I ·:x.siner'a 

objec\1on on the eround of 1n4et1~1tenose •. 

'!'lie refArences h Five been conraic\f.lrn!l, but mne or 1.be tbree 

c1tBt1one dioclosos a structure of.the chnrobtar c~llet\ for by the claima . . 

in the tom in ~Mob. tbef aro nor. preoented. l11 p~rticulrr, not.hiug in 

tha nnture ot a -vsrtable or allpping drt ve 'ot tr1ct1on type 18 towl4 111 . . 

P.l:l' ono of ti~N;~ potents ci thcr olo!lfl ol' in rn1~ CO'Dbinn.tton spproxi~Una 

tho present invantion. ?·Jo detflilod 41 GOuseion ot tb"se pnteri:to is daeciod 

nece&D&l"J ond 1 t is auf'f1c1en't to point out tb~t those C?leir.is r.001 tively 

rojected on tbe cit~d art htlve been Qnended to avoid tbe sam. 

:-'evomble· r?considorr. tion 15 c:r.1!'te-oaaly roquontcd in the 

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