US3810404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supplying material
Assignee: KEURA MASCHINENBAU AND CO GmbH Co
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Filing: 1972-12-18
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Granted: 1974-05-14
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Expires: 1992-12-18
Abstract
Abstract Material supply apparatus including pallets of equal size on which material to be fed to a cutting machine may be stored. The pallets are arranged, one above another, in alignment with one another in storage bays formed by shelving units. The storage bays of each shelving unit are positioned one above another. At least one of the shelving units is positioned in spaced relation with respect to another of the shelving units transversely of the longitudinal extent of the pallets, providing a free space between these shelving units. The width of the free space is greater than that of the pallets. A conveyor which is drivable in two opposite directions is positioned between the cutting machine and a withdrawal bay operatively associated with one of the shelving units. The withdrawal bay is part of an arrangement which includes members for withdrawing material from the pallets onto the conveyor and for reinserting material from the conveyor onto the pallets. Pallet transport devices are arranged for transporting the pallets from the storage bays into the withdrawal bay and back again. The transport devices, the members for withdrawing and reinserting material, and the conveyor are coupled to a program control system and are controlled by signals therefrom. A data carrier provided on each pallet is adapted to store data which determine the working speed of the cutting machine and the pressure exerted by clamping devices associated with the machine on the material being cut with regard to the nature of the material assigned to each respective pallet. A sensor is operatively associated with the withdrawal bay for sensing the data carried by the data carriers. The cutting machine and the clamping jaws are responsive to signals from the sensor which establish the working speed of the machine and the pressure exerted by the clamping jaws.
Inventors
- 👤 P Stolzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:48
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/0442; B23; B23D; B23D47/00; B23D47/04; B23D47/042; B23Q; B23Q7/00; B23Q7/10; Y; Y10; Y10T; Y10T83/00; Y10T83/141; Y10T83/148; Y10T83/647; Y10T83/6571; Y10T83/828
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
468 words
Apparatus for automatically supplying material in rod form to a cutting machine having cutting means, clamping jaw means arranged beside the cutting means for holding the material during cutting after it has been advanced and means for returning the cutting means to an initial position automatically after each cutting operation, the apparatus including program control system means for receiving a main program of piece numbers and data for determining the respective lengths of the parts to be cut from the material, and means responsive to signals from the program control system means for advancing the material into the cutting machine in respective lengths to be cut off including cutting loss caused by the cutting means, the improvement comprising: a plurality of pallets of substantially equal size for storing material to be cut, each pallet being suitable for storing material of a respective substance and a respective cross section; a plurality of shelving units each containing a plurality of storage bays one above another, each of said pallets being stored in a respective one of said storage bays one above another and in alignment with one another, and at least one of said shelving units being positioned in spaced relation with respect to another of said shelving units transversely of the longitudinal extent of said pallets so as to provide a free space between these shelving units in this direction, the width of said free space being greater than that of said pallets; conveyor means drivable in two opposite directions; means including a withdrawal bay operatively associated with one of said shelving units for withdrawing material from said pallets onto said conveyor means and for reinserting material from said conveyor means onto said pallets, said withdrawal bay being positioned substantially parallel to said pallets, said conveyor means extending in the longitUdinal direction of said pallets from said withdrawal bay to the cutting machine; pallet transport means for bringing said pallets from said storage bays over said shelving units and via the free space between said shelving units into said withdrawal bay and back again, said transport means and said means for withdrawing and reinserting material and said conveyor means being coupled to said program control system means and responsive to signals therefrom; a data carrier on each said pallet adapted to store data which determine the working speed of the cutting machine and the pressure exerted by said clamping means upon the material being cut with regard to the nature of the material assigned to each respective pallet; and sensing means associated with said withdrawal bay for sensing the data carried by said data carriers, said clamping jaw means and said cutting machine being responsive to signals from said sensing means which establish the pressure exerted by the clamping jaw means and the working speed of the cutting machine.
Claim 2
Dependent Claim
468 words
Apparatus for automatically supplying material in rod form to a cutting machine having cutting means, clamping jaw means arranged beside the cutting means for holding the material during cutting after it has been advanced and means for returning the cutting means to an initial position automatically after each cutting operation, the apparatus including program control system means for receiving a main program of piece numbers and data for determining the respective lengths of the parts to be cut from the material, and means responsive to signals from the program control system means for advancing the material into the cutting machine in respective lengths to be cut off including cutting loss caused by the cutting means, the improvement comprising: a plurality of pallets of substantially equal size for storing material to be cut, each pallet being suitable for storing material of a respective substance and a respective cross section; a plurality of shelving units each containing a plurality of storage bays one above another, each of said pallets being stored in a respective one of said storage bays one above another and in alignment with one another, and at least one of said shelving units being positioned in spaced relation with respect to another of said shelving units transversely of the longitudinal extent of said pallets so as to provide a free space between these shelving units in this direction, the width of said free space being greater than that of said pallets; conveyor means drivable in two opposite directions; means including a withdrawal bay operatively associated with one of said shelving units for withdrawing material from said pallets onto said conveyor means and for reinserting material from said conveyor means onto said pallets, said withdrawal bay being positioned substantially parallel to said pallets, said conveyor means extending in the longitUdinal direction of said pallets from said withdrawal bay to the cutting machine; pallet transport means for bringing said pallets from said storage bays over said shelving units and via the free space between said shelving units into said withdrawal bay and back again, said transport means and said means for withdrawing and reinserting material and said conveyor means being coupled to said program control system means and responsive to signals therefrom; a data carrier on each said pallet adapted to store data which determine the working speed of the cutting machine and the pressure exerted by said clamping means upon the material being cut with regard to the nature of the material assigned to each respective pallet; and sensing means associated with said withdrawal bay for sensing the data carried by said data carriers, said clamping jaw means and said cutting machine being responsive to signals from said sensing means which establish the pressure exerted by the clamping jaw means and the working speed of the cutting machine.
Claim 3
Dependent Claim
77 words
An apparatus as defined in claim 1, further comprising a first free bay and a second free bay in the vicinity of said withdrawal bay, and wherein said transfer means for bringing said pallets into said withdrawal bay and back again are operatively arranged firstly for bringing said pallets into said first free bay and thence into said withdrawal bay and secondly for bringing said pallets into said second free bay and thence into respective storage bays.
Claim 4
Dependent Claim
64 words
An apparatus as defined in claim 1, wherein each of said shelving units comprises at least two vertical supports, a plurality of arms secured to said supports and extending transversely of the longitudinal extent of said pallets, as support for said pallets, said arms and said supports being arranged with spacing inwardly from the longitudinal ends of said pallets and forming said storage bays.
Claim 5
Dependent Claim
115 words
An apparatus as defined in claim 1, wherein said transport means comprises: tracks extending horizontally beside said shelving units, one of said tracks lying nearest said cutting machine extending with spacing above said conveyor means; and a transport device having an inverted U-shaped framework extending over said shelving units and having the free ends of its downwardly extending legs movably positioned on said tracks; a vertically displaceable arm extending from each said downwardly extending leg of said U-shaped framework, said arms being synchronized in their vertical displacement and movable out of said free space between said shelving units to beneath said pallets; and drive means positioned on said transport device for moving said transport device.
Claim 6
Dependent Claim
35 words
An apparatus as defined in claim 1, wherein said shelving units define a single shelving unit row, and include a first free bay and a second free bay in the vicinity of said withdrawal bay.
Claim 7
Dependent Claim
91 words
An apparatus as defined in claim 1, wherein said shelving units include a first shelving unit and a second shelving unit spaced from one another and defining a shelving unit row, said withdrawal bay being associated with said first shelving unit and said second shelving unit having a first free bay and a second free bay arranged substantially opposite said withdrawal bay; and further comprising mobile transfer means positioned between said withdrawal bay and said second shelving unit for transferring said pallets in the longitudinal direction of said shelving unit row.
Claim 8
Dependent Claim
56 words
An apparatus as defined in claim 6, wherein said transfer means includes at least two automatically vertically synchronously displaceable arms extending horizontally and in the longitudinal direction of said pallets, said arms extending into the vicinity of said pallets so as to be drivable under said pallets out of the free space between said shelving units.
Claim 9
Dependent Claim
95 words
An apparatus as defined in claim 6, further comprising at least one additional plurality of shelving units, each said additional plurality of shelving units defining a further shelving unit row, said furtheR shelving unit row including an additional first free bay and an additional second free bay aligned in the longitudinal direction of said pallets and with said first free bay and said second free bay respectively; and means interconnecting said first free bay with said additional first free bay and said second free bay with said additional second free bay for shifting said pallets.
Claim 10
Dependent Claim
134 words
An apparatus as defined in claim 8, wherein said means for shifting said pallets comprise rail means connecting said first first free bay with said additional first free bay and said second free bay with said additional second free bay, and multi-axle trolley means mobile on said rail means; and said transport means comprises tracks horizontally beside said shelving units, and respective transport devices each having an inverted U-shaped framework extending over respective pluralities of shelving units and having the free ends of their downwardly extending legs movably positioned on said tracks, said rail means being interrupted in the regions of movement of said U-shaped frameworks and said multi-axles being distributed over the length of said trolley means for assuring that said trolley means are always guided horizontally despite interruption of said rail means.
Claim 11
Dependent Claim
53 words
An apparatus as defined in claim 1, wherein said means for withdrawing material from said pallets comprises stop means and at least two synchronously vertically and horizontally displaceable supports for moving said pallets upwards and in the direction of said conveyor means against said stop means which limit the vertical and horizontal movements.
Claim 12
Dependent Claim
58 words
An apparatus as defined in claim 10, further comprising rollers each having a horizontally adjustable axis, said rollers being carried by said supports in a plane parallel to the longitudinal extent of said pallets, and wherein each of said pallets has recesses in its underside engageable with said supports via said rollers for adjustment in the longitudinal direction.
Claim 13
Dependent Claim
50 words
An apparatus as defined in claim 10, further comprising rollers, a free bay, a pallet shifting device operatively associated with said free bay and having auxiliary supports which carry said rollers, and wherein each of said pallets has recesses in its underside engageable with said auxiliary supports via said rollers.
Claim 14
Dependent Claim
37 words
An apparatus as defined in claim 10, further comprising means including end contacts operatively positioned to be activated whenever any of said pallets contact said stop means for halting the vertical and horizontal movements of said supports.
Claim 15
Dependent Claim
26 words
An apparatus as defined in claim 10, further comprising cylinder-piston units operatively associated with said supports for effecting the vertical and horizontal movement of these supports.
Claim 16
Dependent Claim
106 words
An apparatus as defined in claim 14, further comprising a plurality of racks, a plurality of pinions and first and second common shafts, and wherein each of said cylinder-piston units includes a movable part which carries a respective one of said racks, each respective one of said racks extending in the direction of movement and meshing with one of said pinions, those of said pinions associated with those of said cylinder-piston units which effect vertical movement being arranged on said first common shafts, and those of said pinions associated with those of said cylinder-piston units which effect horizontal movement being arranged on said second common shaft.
Claim 17
Dependent Claim
44 words
An apparatus as defined in claim 14, wherein said cylinder-piston units comprise first cylinder-piston units for providing vertical movement of said supports and second cylinder-piston units for providing horizontal movement of said supports, said second cylinder-piston units being vertically displaceable with the vertical movement.
Claim 18
Dependent Claim
40 words
An apparatus as defined in claim 14, further comprising pallet transfer means, said supports being carried by said pallet transfer means and said second cylinder-piston units being coupled to said pallet transfer means for providing horIzontal movement of this means.
Claim 19
Dependent Claim
42 words
An apparatus as defined in claim 17, further comprising a first free bay and a second free bay, and said second cylinder-piston units being effective for displacing said pallet transfer means between said withdrawal bay and said first and second free bays.
Claim 20
Dependent Claim
28 words
An apparatus as defined in claim 18, wherein said first free bay includes stop means, said cylinder-piston units being effective for positioning said pallets against said stop means.
Claim 21
Dependent Claim
160 words
An apparatus as defined in claim 1, wherein said means for withdrawing and for reinserting material includes at least two vertically and synchronously displaceable lifters having a given cross section and a width which corresponds to the width of said pallets, measured perpendicularly of their longitudinal extent; wherein said pallets have bottom openings corresponding to said cross section of said lifters; and wherein said means for withdrawing and for reinserting material further includes at least two horizontally and synchronously moveable first push members for pushing the material, after lifting out of a pallet, onto said conveyor means; at least two additional horizontally and synchronously moveable push members for pushing material after working into a pallet from said conveyor means; a first plate interconnecting said first push members in the vicinity of their portions coming in contact with the material, and a second plate interconnecting said additional push members in the vicinity of their portions coming in contact with the material.
Claim 22
Dependent Claim
84 words
An apparatus as defined in claim 20, further comprising first, second and third cylinder-piston units each having a moving part; first, second and third racks carried by respective ones of said moving parts; first, second and third pinions meshed with respective ones of said racks; and first, second and third common shafts on which said first, second and third pinions are respectively seated; respective ones of said moving parts being coupled respectively to said lifters, said first push members and said additional push members.
Claim 23
Dependent Claim
43 words
An apparatus as defined in claim 20, further comprising a cylinder-piston unit and carrier means on which said lifters are mounted and which extends in the longitudinal direction of said pallets, said cylinder-piston unit being operatively arranged to act upon said carrier means.
Claim 24
Dependent Claim
127 words
An apparatus as defined in claim 20, further comprising first stop means arranged above said conveyor means, end contact means positioned so as to be operated by said first stop means for interrupting movement of said first push members to assure that only one piece of the material may be pushed onto said conveyor means at one time, means for adustably setting said first stop means including second stop means adjustably arranged on each of said pallets and means for coupling said first stop means to said second stop means, and further comprising means for interrupting the elimination of the withdrawal motions of said first push members only when a piece of material is consumed and further parts have to be cut from the material being worked.
Claim 25
Dependent Claim
75 words
An apparatus as defined in claim 23, wherein said means for coupling said first stop means and said second stop means comprises adjustably positionable carriage means on which said first stop means and said end contact means are positioned, and connective means positioned between said carriage means and said second stop means whereby the position of the carriage means is effected by the second stop means acting against a force acting on the carriage means.
Claim 26
Dependent Claim
84 words
An apparatus as defined in claim 24, wherein said second stop means is arranged on the underside of each pallet, said carriage means is horizontally movable, said first stop means and said end contact means are seated on said carriage means and said connective means comprises an arm against which said second stop means may come, and further comprising a cylinder-piston unit or spring means coupled to said carriage means for geNerating a force tending to bias said carriage means toward a given position.
Claim 27
Dependent Claim
110 words
An apparatus as defined in claim 24, wherein each of said pallets is provided with a transverse wall which closes off said pallets in the direction of the cutting machine, said second stop means is positioned forward of said transverse wall, said carriage means is movably positioned obliquely upwardly from said second stop means, said first stop means is an arm connected to said carriage means, and said carriage means is at least partially supported by said end contact means, the force acting on said carriage means being provided at least in part by gravity acting on said carriage, said arm, said end contact means and said first stop means.
Claim 28
Dependent Claim
30 words
An apparatus as defined in claim 24, wherein said first stop means, said carriage means and said connective means are displaceable away from that pallet situated in said withdrawal bay.
Claim 29
Dependent Claim
38 words
An apparatus as defined in claim 27, further comprising a cylinder-piston unit coupled to said carriage means for displacing said carriage means, said first stop means and said connective means against the force acting on said carriage means.
Claim 30
Dependent Claim
35 words
An apparatus as defined in claim 1, including a plurality of layers of the material accommodated in at least one of said pallets and a number of plates interposed between said layers of the material.
Claim 31
Dependent Claim
69 words
An apparatus as defined in claim 29, further comprising means operatively arranged for raising the material subsequent to the consumption of one of the material layers by an amount corresponding to the thickness of one of said plates before the next material layer is lifted out, and wherein said means for withdrawing material includes at least one push member, said push member being operatively arranged for ejecting said plates.
Claim 32
Dependent Claim
167 words
An apparatus as defined in claim 1, wherein each of said pallets includes a transverse wall against which the front ends of material rods to be worked which already have been cut smooth may be positioned in said pallets, while the front ends of material rods to be worked which have not been cut smooth may be spaced from said transverse wall in said pallets, further comprising light sensing means for detecting the absence of the material rods which already have been cut smooth arranged in the vicinity of said conveyor means and in the vicinity of a region between said transverse wall and the front ends of the material rods which have not been cut smooth, and wherein said program control system means is coupled to said light sensing means and is responsive to an output signal therefrom for switching in an auxiliary program to the cutting machine for firstly causing the particular material rod being worked to be cut smooth while by-passing said main program.
Claim 33
Dependent Claim
35 words
An apparatus as defined in claim 31, wherein said light sensing means comprises light responsive member arranged on or above said conveyor means, said light responsive member being responsive to interruption of a light ray.
Claim 34
Dependent Claim
32 words
An apparatus as defined in claim 31, wherein at least one of said data carriers includes a special code for effecting the bridging over of the function of said light sensing means.
Claim 35
Dependent Claim
157 words
An apparatus as defined in claim 1, wherein said data carrier includes a special code for signaling an ideal minimum weight of pallet content, and further comprising means for determining the weight of pallet content including lifters operatively arranged to carry this content, pressure operated cylinder-piston units coupled to said lifters and means responsive to the pressure prevailing in said cylinder-piston units for signaling the actual weight of pallet content, and means for comparing a signal from said means responsive to the pressure and a signal from said data carrier determined by said special code for providing an output signal to said program control system means for interrupting work on the material whenever the weight of the pallet content falls short of a value corresponding to the minimum weight of one material piece and the material available on the cutting machine is consumed, one or more parts of this material still being next programmed to be cut.
Claim 36
Dependent Claim
40 words
An apparatus as defined in claim 34, further comprising means responsive to the output signal from said means for comparing for causing said pallet transport means to being another of said pallets with a similar material into said withdrawal bay.
Claim 37
Dependent Claim
23 words
An apparatus as defined in claim 34, wherein said means for comparing is operatively arranged to signal the substantial emptying of individual pallets.
Claim 38
Dependent Claim
42 words
An apparatus as defined in claim 1, wherein each of said pallets is provided with a transverse wall which closes off respective pallets on a side facing the cutting machine, said data carriers being arranged on respective ones of said transverse walls.
Claim 39
Dependent Claim
66 words
An apparatus as defined in claim 37, wherein each of said data carriers comprises a horizontally perforated strip extending transversely of the longitudinal direction of said pallets and pins selectively secured into individual holes in said strip according to the type of material to be situated in respective pallets, and wherein said sensing means includes end contact means operatively positioned to be operated by said pins.
Claim 40
Dependent Claim
76 words
An apparatus as defined in claim 1, wherein said conveyor means is inclined transversly of its longitudinal extent so as to define a lower longitudinal edge; and further comprising movable feed means for feeding material to the cutting machine, and a vertical guide rail having a hinged portion and extending between said withdrawal bay and the cutting machine into the region of movement of said feed means, said hinged portion being movable out of this region.
Claim 41
Dependent Claim
96 words
An apparatus as defined in claim 1, further comprising two spaced apart material sensors positioned in the vicinity of said conveyor means along its longitudinal direction, ejector means positioned between said withdrawal bay and the cutting machine in the vicinity of said conveyor means for selectively ejecting some material pieces from said conveyor means, means responsive to the sequential and non-concurrent appearance of signals from said two material sensors for enabling said ejector means, and means responsive to the sequential and non-concurrent appearance of signals from said two material sensors for shutting off said conveyor means.
Claim 42
Dependent Claim
63 words
An apparatus as defined in claim 40, further comprising a guide rail having a movable portion, and wherein said two material sensors comprise two light responsive sensors and said ejector means includes a cylinder-piston unit coupled to said movable portion and positioned in the vicinity of said conveyor means for displacing said movable portion over said conveyor means transversely of its longitudinal direction.
Claim 43
Dependent Claim
78 words
An apparatus as defined in claim 40, further comprising feed means for feeding material to the cutting machine and material sensor means responsive to the disappearance of material from said feed means during a cutting operation, and means responsive to a signal from said material sensor means for interrupting the operation of the cutting machine, removing residue material from the cutting machine via said conveyor means and said ejector means and initiating supply of a further material piece.
Claim 44
Dependent Claim
72 words
An apparatus as defined in claim 42, wherein said feed means are clamping jaws displaceable in the longitudinal direction of said conveyor means and transversely thereof, and said material sensor means includes contact means and a force charged flap, said flap being carried by one of said jaws and said contact being operatively positioned to be operated by contact with said forced charged flap whenever no material is present between said jaws.
Claim 45
Dependent Claim
106 words
An apparatus as defined in claim 1, in combination with the cutting machine, said cutting machine including a cutting member, a material sensor, a contact means, a movable part on which said cutting member and said material sensor are positioned and means for Controlling the feed speed of said movable part; said material sensor being operatively positioned to contact the material to be cut before said cutting member, in the feed direction, said contact being operable by said material sensor and said means for controlling the feed speed is responsive to signals from said contact means, whereby the feed speed of the movable part is variable.
Claim 46
Dependent Claim
96 words
An apparatus as defined in claim 1, in combination with the cutting machine, said cutting machine including a cutting member, a stop and material sensor means; said stop being operatively positioned in alignment with that side of said cutting member facing the material and said material sensor means being operatively positioned for checking the abutment of the material with said stop, before the initiation of the work of said cutting machine, and further comprising means responsive to a signal from said material sensor means for switching on said conveyor means anew whenever there is incorrect abutment.
Claim 47
Dependent Claim
31 words
An apparatus as defined in claim 1, wherein at least one of said shelving units comprises a charging bay in which an empty pallet may be positioned for filling with material.
Claim 48
Dependent Claim
49 words
An apparatus as defined in claim 46, wherein said shelving units are positioned to define a plurality of shelving unit rows, each row including a free bay aligned with said charging bay in the longitudinal direction of said pallets, said charging bay being drivable automatically into said free bays.
Claim 49
Dependent Claim
89 words
An apparatus as defined in claim 47, wherein said transport means includes a plurality of transport devices each operatively associated with a respective one of said rows and each having an inverted U-shaped framework, and further comprising guide rails for guiding said charging bay into said free bays which are aligned with said charging bay, said guide rails being interrupted in the region of movement of said U-shaped arms; and said charging bay includes means for assuring horizontal guidance on said guide rails despite the interruption of these rails.
Claim 50
Dependent Claim
36 words
An apparatus as defined in claim 48, wherein said means for assuring guidance comprises at least three pairs of rollers each having a respective axis of rotation, said axis being arranged in a common vertical plane.
Claim 51
Independent Claim
189 words
A system for processing material comprising, in combination: a. process control means for providing process control signals from a stored program; b. a material processing apparatus coupled to said process control means and responsive to signals therefrom for effecting a predetermined sequence of process operations on the material; c. means for storing in a systematic arrangement differing materials to be processed, said means for storing including a plurality of movable material holders, each of said material holders including data carrier means for storing process data; d. a material withdrawal station; e. material holder transporting means coupled to said control means and responsive to signals therefrom for moving said material holders into and out of said withdrawal station in predetermined order; f. conveyor means positioned between said withdrawal station and said material processing apparatus for moving material between said withdrawal station and said material processing apparatus; and g. sensing means operatively associated with said withdrawal station and responsive to data from said data carrier means for provided additional process control signals, said material processing apparatus being coupled to said sensing means and responsive to the additional process control signals therefrom.
Claim 52
Independent Claim
189 words
A system for processing material comprising, in combination: a. process control means for providing process control signals from a stored program; b. a material processing apparatus coupled to said process control means and responsive to signals therefrom for effecting a predetermined sequence of process operations on the material; c. means for storing in a systematic arrangement differing materials to be processed, said means for storing including a plurality of movable material holders, each of said material holders including data carrier means for storing process data; d. a material withdrawal station; e. material holder transporting means coupled to said control means and responsive to signals therefrom for moving said material holders into and out of said withdrawal station in predetermined order; f. conveyor means positioned between said withdrawal station and said material processing apparatus for moving material between said withdrawal station and said material processing apparatus; and g. sensing means operatively associated with said withdrawal station and responsive to data from said data carrier means for provided additional process control signals, said material processing apparatus being coupled to said sensing means and responsive to the additional process control signals therefrom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |