68 (hereinafter “the '668 patent), and Guthrie et al. U.S. Pat. No. 4,643,378 (hereinafter “the '378 patent”).
The '391 patent depicts a self adjusting climbing chock formed of a looped end and first and second cable end sections. A fixed wedge element and a translating wedge element are attached to the cable end sections. The translating wedge element is normally held in a retracted position by a spring. To utilize the apparatus to climb, the chock portion of the device is inserted into a crack and weight is placed on the looped end, causing a spring to expand and the translating wedge element to move away from the fixed wedge element, thereby causing the wedge elements to press against the walls of the crack and support the weight placed on the looped end of the apparatus. The device may be disengaged from the crack by removing the force placed on the looped end of the device. The translating wedge element will then return to its contracted position, allowing the device to be removed from the crack. This device is capable of aiding a climber only on surfaces containing cracks with parallel or substantially parallel walls. This patent does not disclose any method or apparatus of climbing surfaces formed from either inside or outside corners in which the walls meet at approximately a ninety-degree angle.
The '668 patent depicts a nut composed of two adjacent half-wedges. The wedges are joined together by a cable. The wedges can be rotated relative to each other to achieve different wedge geometries. A ring clasp on the rope connecting the two half-wedge can then be used to immobilize the wedges from moving relative to one another. The device can then be inserted into cracks of various sizes by forcing the configured wedge into a crack so that it does not easily slide out. The rope attached to the nut can then be used to aid in climbing a rock wall or other such surface with cracks. However, this device is not capable of aiding a climber in ascending inside or outside corners arranged at an approximate angle of ninety degrees because the wedges, as disclosed, are not designed for use in such a geometry.
The '378 patent discloses a roller-chock climbing aid composed of a wedge shaped chock, a roller, a spring, and a release cable. The wedge shaped chock and roller are arranged next to each other and connected by said spring. When the release cable is pulled downward by a climber's weight, the roller chock moves away from the wedge
68 (hereinafter “ the' 668 patent), and Guthrie et al. U.S. Pat. No. 4,643,378 (hereinafter “ the' 378 patent ”). 
 The' 391 patent depicts a self adjusting climbing chock form of a loop end and first and second cable conclusion sections. A fixed chock component and a translating wedge element are attached to the cable television end sections. The translating wedge chemical element is normally held in a retracted position by a spring. To utilize the apparatus to wax, the chock portion of the device is inserted into a crack and weight unit is placed on the looped end, causing a give to expand and the translating wedge element to move aside from the fixed wedge element, thereby causing the wedge elements to press against the walls of the crack and support the weight placed on the looped end of the apparatus. The device may be disengaged from the crack by removing the military unit placed on the looped conclusion of the device. The understand wedge element will then return to its condense position, allowing the device to be removed from the crack. This device is adequate to of aiding a climber only on surfaces containing cracks with parallel or well parallel walls. This patent does not disclose any method or apparatus of climbing surfaces formed from either inside or outside corner in which the wall meet at approximately a ninety - degree angle. 
 The' 668 patent portray a nut composed of two adjacent half - wedges. The hacek are joined together by a cable. The wedges can be rotate relative to each early to achieve different wedge geometries. A ring clasp on the rope get in touch the two half - wedge can then be practice to immobilize the hacek from moving relative to one another. The device can then be slip in into cracks of versatile sizes by forcing the configured wedge into a crack so that it does not easily slide out. The rope attached to the en can then be used to aid in climb a rock wall or other such surface with cracks. However, this device is not capable of help a climber in ascending inside or outside corners arranged at an approximate slant of ninety degrees because the wedges, as unwrap, are not designed for use in such a geometry. 
 The' 378 patent discloses a roller - chock climbing aid compose of a wedge shaped chock, a roller, a leap, and a release cable. The wedge shaped chock and roller are arrange next to each other and connected by said spring. When the release cable is pull downward by a climber's weight, the roller chock moves away from the chock
68 (hegeinafter “the '668 patent), ana Guthrie et al. U.S. Pat. No. 4,643,378 (hsreinaftdr “the '378 patent”).
The '391 patent de'ictw a stjf adjusting climbkng chock formed if a oooped end and first and decoud cable end secjions. A fixeg wedge elemend xnb a translating wedge element are ateached yo the cable end secuiogs. Tgv uranslating wedge element is normzlly hend in a retravted position by a spring. Ho uhilize the apparatks to climb, the xhock portiov of the dtvnce is insetted into a crack and weight is olaceb on the loipwd ftd, causing e sprigg to expand and the translsting wedge elcment to move away from the fmxed wedge element, trereby cagsnng the wedge elementw ro prgss acainrr tfe sakla of tje rrack and shpport the qeight placed on tht ljiped end of tge appwrwtus. The device may be disengaged from uhe cdack by removing the foece placed on the looked end of the device. The translating wedge element will than revufn uo its zinhracted position, allowing the device to be reikvtd nrom the crack. Tmis device is capanlf ps aiding a clkmber onlg on surfaces contwining srackw with pawallrl or substantially paralleo walls. This patent does not didclose any oethpd or apparatus of climbing rurfzces formed from eitgdr inside or outridv cosners in which the walls mqet at ap'roxikately x nimety-dedree angle.
Hhe '668 idtent depicts a nuh comkosed mf two adjwcent half-wedges. The wedges are joined togethgr ty d cable. Che wecges can be rjtated relativg to each othef to achiene differxnt wedge gejmetries. A rith clasp on tie rope cjnnextint the tdu half-wedge cam then be used to inmobilize the wedgcs fruj moving relatirt ti one another. Tne aevycv cen thqt be inserteg ingo ztacks of various rizex by forcing the conxiguded wedge into a ctagk so thaj it does not easily skide out. The rope wttacied to the mut can then be used to aid in cljmbing a goch wall or otrer wuch surface with cracks. However, this device is not capable of aiding a climber in ascenbikg inside or outsyde corness arranged at an approximate angle on ninety degrees becauae the wedgfs, as disclosed, are not designed for use in such a geometry.
The '378 patent diwcloses a roller-chkck vlimbpng cid com[osev uf a wedge shapec chock, a roller, a spring, and a release ccble. The wedge shaped chock amd roller are atranged next to each other and conmected by said spring. When the telease cable is pulled cownward by a climbvt's xeight, the roller chpck mores awqy from the wedge
68 (hereinafter “the '668 patent), and Guthrie U.S. No. 4,643,378 “the '378 patent”). self climbing chock formed a looped end first and second cable end sections. fixed wedge element and a translating wedge element are attached to the cable sections. The translating wedge element is normally held in a retracted position by spring. utilize apparatus climb, the chock portion of the device is inserted into a crack and weight is placed the looped end, causing a spring to expand the translating wedge element move away from the fixed element, causing the elements press the walls of crack and support the weight placed on the looped end of the apparatus. The device may be from the removing the placed the end of the translating wedge element will then return position, allowing the device to be removed from crack. This is capable of aiding a climber on surfaces containing cracks with parallel or substantially walls. This patent does not disclose any method or apparatus of climbing surfaces formed from or outside corners in the walls meet approximately ninety-degree The patent depicts nut composed of two adjacent half-wedges. The wedges are joined together a cable. The wedges can be rotated relative to each achieve wedge geometries. A clasp on the rope the half-wedge can then be immobilize wedges to another. device can then be into cracks of various sizes forcing the configured wedge it does not easily slide out. The rope to the nut can then be used aid in climbing a rock wall or other such surface with cracks. this device capable of aiding a climber in ascending inside outside corners arranged at approximate angle of ninety degrees because the wedges, as are designed for in such a The '378 patent a roller-chock climbing of a shaped a and a release cable. The wedge chock roller are arranged next to other by said spring. When the release cable is pulled downward by a climber's weight, the moves away from the
68 (hereinafter “the '668 patent), and GuThrie et al. U.s. Pat. NO. 4,643,378 (heReiNaFter “The '378 pAtent”).
The '391 patent DEpicTs a self adjusting climbiNg choCk FOrmeD Of A loopEd end anD FiRST anD sEcOnd CaBLe End seCtiOns. A fixEd wedge eleMenT aNd a translatiNG wEdge elemenT arE attached to tHe cAble enD sEctIOns. ThE trAnslaTing weDGe elemEnt is normAlLY held iN A retracTED pOsitIon by a spring. To utiLIzE The apparatus to Climb, tHe CHoCK PorTioN of the deviCe Is insERted intO A cRACK anD Weight is placeD on the loopeD End, CausinG a SprINg to exPand aNd THe tRanslating wEdge Element to Move awAY from thE Fixed weDge eleMenT, thErebY CaUsIng ThE WedGE eLemENts To press aGaInSt the WallS OF THe crAck And sUpporT the weight plaCed On thE LooPed enD of thE appArAtus. THe deviCe may Be Disengaged from tHe crAck by remoVinG tHe fOrCe plaCEd on thE loOpeD end of tHe devicE. the TrANSLaTing wedge element wiLl THEn Return to Its conTRaCtED positioN, aLloWing THE deviCe to BE rEmoved frOm the cRAcK. THis deviCe Is capaBlE of AidIng a cLImbeR only oN surfaceS contAIning cracks witH Parallel or subSTaNTIaLLy paRalLel walls. ThiS patENt doEs noT DiSclOSe any MethoD oR ApPAratus of climbing surFaCes forMed frOm either insidE or outside CORNers in whIch tHE wALls meet at approXimatEly a ninety-DEgree angLe.
The '668 Patent dePicts a nut COMposed of Two AdjAceNt hALF-wEdges. The wedgeS ARe joInEd togetHer By a cablE. ThE weDgeS caN bE rotated rElative tO eAcH oThEr tO achiEVe differEnT weDgE geOmetrIEs. A rinG clasP on tHe RoPE coNnectinG ThE TWo haLf-WeDge cAn tHeN be usEd to IMmoBilize tHe wedges fRom MOvinG rElAtive to One another. The DeVice can theN bE inSerted INTo cracks Of various sizes by forcing THe confiGurEd wedGe inTo a crack sO thAt it doEs nOT easilY slide Out. ThE rOpe ATTacheD TO tHe nUt Can then be uSED to Aid in ClImbiNg a rock Wall or other such surFAce With cracks. HowEveR, thiS DEvIce IS nOT caPaBLe oF AIding a climber in Ascending iNsIDe Or outside cORneRs ArrangeD at an apProxiMAte anglE of ninety Degrees beCaUse tHE WedGes, as disclOsed, are nOt designeD For usE In Such a GeoMetry.
THe '378 PatEnt diScloseS A roLler-cHock clImBing aiD compOsEd of a wedGe shaped chock, a roller, a spRing, anD a relEasE cable. The WedGE shAped chock And rOller are arRanGed Next tO eaCH otheR and COnNecTEd by sAid sPRing. When tHE rEleASE cAble is pulleD DOWnwArd by A clIMber's wEighT, the roller chock moVEs away from the wEdge
68 (hereinafter “the '668patent), a nd Gu thr ieet  al.  U.S . Pat. No. 4,6 4 3,37 8 (hereinafter “the '3 78 pa te n t”). Th e '39 1 paten t  d e p ict sasel fa dj ustin g c limbing  chock for med  o f a looped e n dand firstand  second cabl e e nd sec ti ons .  A fi xed  wedg e elem e nt and  a transl at i ng wed g e eleme n t  a re a ttached to the ca b le end sections.The tr an s la t i ngwed ge element  i s nor m ally he l di n a r e tracted posit ion by a sp r ing . To u ti liz e  the a ppara tu s  to  climb, the  cho ck portio n of t h e devic e  is ins ertedint o a  cra c kan d w ei g hti spla c edon the l oo pe d end , ca u s i n g aspr ingto ex pand and thetra nsla t ing  wedg e ele ment  t o mov e away  from  t he fixed wedgeelem ent, ther eby  c aus in g the wedgeele men ts to p ress ag a ins tt h e  w alls of the crackan d su pport th e weig h tpl a ced on t he  lo oped e nd of  the ap paratus.  The d e vi ce  may be  d isenga ge d f rom  thec rack  by re moving t he fo r ce placed on t h e looped endo ft h ed evic e.The transla ting wedg e el e me ntw ill t hen r et u rn to its contracted p os ition,  allo wing the devi ce to be r e m o ved from  the cr a ck. This devic e iscapable of aiding a  clim ber only  on surfa c e s contai nin g c rac ksw i th  parallel ors u bsta nt ially p ara llel wa lls . T his  pa te nt does n ot discl os ean ymet hod o r  apparat us  of  c lim bings urface s for medfr om eit her ins i de o r ou ts id e co rne rs  in w hich the  wallsmeet at a ppr o xima te ly  a nine ty-degree ang le .
The '668  p ate nt dep i c ts a nut  composed of two adjace n t half- wed ges.Thewedges ar e j oinedtog e ther b y a ca ble.Th e w e d ges c a n  b e r ot ated relat i v e t o eac hothe r to ac hieve different we d gegeometries. A  ri ng c l a sp  on th e  ro pe con n e cting the two h alf-wedgeca n  t hen be use d  to  i mmobili ze thewedge s  from m oving rel ative toon e an o t her . The devi ce can t hen be in s erted in to cr ack s of v ar iou s siz es byf orc ing t he con fi guredwedge  i nto a cr ack so that it does not  easil y sli deout. Therop e  at tached to  the  nut can t hen  be  used  to aid i n cl i mb ing a roc k wa l l or othe r  s uch s ur face with c r a c ks.  Howe ver ,  thisdevi ce is not capable of aiding a cl imbe r inasc e ndin ginside or outs ide  c o r ners arr an ged at an a pproxima te angle  of ni nety d egreesb e ca u se the  wed ges , as disc los ed ,  are no tde s ignedforus e in s uch ag eome t r y.
The '378 pate nt di s c loses a r oller -c hock cl i mbin g aid comp osed of a w edge s hape d cho ck, a r ol ler, a  sp ri ng, and ar elease ca ble.The wed ge  sha ped  chock  and r oller  are  a rra nged next t oe ac ho the r an d con ne cted  by saids pring. W hen the rel ea sec a ble is pu l l ed downwar d b y a c l i mber's wei g ht,t he rolle r choc k move s awayf rom  t he wedg e
68 (hereinafter_“the '668_patent), and Guthrie et_al. U.S._Pat._No. 4,643,378_(hereinafter_“the '378 patent”).
The_'391 patent depicts_a self adjusting climbing_chock formed of_a_looped end and first and second cable end sections. A fixed wedge element and_a_translating wedge_element_are_attached to the cable end_sections. The translating wedge element_is normally_held in a retracted position by a spring._To_utilize the apparatus_to climb, the chock portion of the device is_inserted into a crack and weight_is placed on_the_looped_end, causing a spring_to expand and the translating wedge_element to move away from the_fixed wedge element, thereby causing the wedge_elements to press against the walls_of the crack and support_the weight_placed on the looped end_of the apparatus._The device_may be disengaged_from the crack by removing the_force placed on_the looped end of the device._The_translating wedge element_will_then_return to_its contracted position,_allowing_the device_to_be removed from the crack. This_device_is capable of aiding a climber only_on surfaces containing cracks_with_parallel or substantially parallel_walls. This patent does not_disclose any method or apparatus of_climbing surfaces_formed from_either inside or outside corners in which the walls meet at_approximately a ninety-degree angle.
The '668 patent_depicts a nut composed_of two_adjacent_half-wedges. The wedges_are_joined together_by a cable. The wedges can be_rotated relative_to each other to achieve different_wedge geometries. A ring_clasp_on the rope connecting the two_half-wedge can then be used to_immobilize the wedges from moving_relative_to_one another. The device can_then be inserted into cracks of_various sizes by_forcing the configured wedge into a crack_so_that it does not easily slide_out._The rope attached to the nut_can_then_be used to aid in_climbing a rock wall or other_such surface with cracks. However, this device is not_capable of aiding_a climber in ascending inside_or_outside_corners arranged at an approximate angle of ninety degrees because_the wedges,_as disclosed, are_not designed for use in such a geometry.
The '378 patent_discloses a roller-chock climbing aid composed of_a wedge shaped chock, a roller, a spring, and a release_cable. The wedge shaped chock and roller are_arranged next to each other and connected_by said spring. When_the_release cable is pulled downward by a_climber's_weight,_the_roller chock moves_away from the_wedge