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A trailer hitch uses a draw bar to interconnect tractor and trailer vehicles. The draw bar includes an elongated shank with a transverse throughway. A resilient cushion is disposed in the throughway. A passageway is associated with the throughway to receive a hitch pin such that longitudinal motion

A trailer hitch uses a draw bar to interconnect tractor and trailer vehicles. The draw bar includes an elongated shank with a transverse throughway. A resilient cushion is disposed in the throughway. A passageway is associated with the throughway to receive a hitch pin such that longitudinal motion of the shank is resiliently resisted by the cushion. The cushion may be disposed in a rigid casing to form a cartridge that inserts into the throughway, and the passageway may be provided by a reciprocating slide member in the casing. Cushions may be employed in the casing to resist motion during both braking and acceleration. Cartridges having differing performance may be interchanged in the system. A method employing such structures is described.

대표청구항 ▼

A trailer hitch uses a draw bar to interconnect tractor and trailer vehicles. The draw bar includes an elongated shank with a transverse throughway. A resilient cushion is disposed in the throughway. A passageway is associated with the throughway to receive a hitch pin such that longitudinal motion

A trailer hitch uses a draw bar to interconnect tractor and trailer vehicles. The draw bar includes an elongated shank with a transverse throughway. A resilient cushion is disposed in the throughway. A passageway is associated with the throughway to receive a hitch pin such that longitudinal motion of the shank is resiliently resisted by the cushion. The cushion may be disposed in a rigid casing to form a cartridge that inserts into the throughway, and the passageway may be provided by a reciprocating slide member in the casing. Cushions may be employed in the casing to resist motion during both braking and acceleration. Cartridges having differing performance may be interchanged in the system. A method employing such structures is described. 5. The device of claim 1 wherein the first outcome set is twenty-five Bingo numbers and the second outcome set is ten Bingo numbers. 6. The device of claim 1 wherein said processor is programmed to control the display to display each Bingo number selected. 7. The device of claim 1 wherein said processor is programmed to control the display to show the first and second outcome sets in different color. 8. The device of claim 1 including means for the player to select the Bingo numbers for any location on the card matrix from said universe. 9. The device of claim 1 wherein said processor includes a clock operated random number generator (RNG) and further including means for altering the timing position of the clock. 10. An electronic device for playing a Bingo game comprising: a data processor; a display; means for a player to initiate play of a Bingo game, said processor controlling the display to display a standard 5×5 matrix Bingo card having a center free coordinate and at each remaining coordinate of the card a discrete Bingo number selected from a universe of Bongo numbers; a first data structure storing data corresponding to each of a plurality winning patterns of identified coordinates on said card; means for the processor to select from the of said universe of Bingo numbers a pre-selected number of Bongo numbers defining a first outcome set and an additional pre-selected number of Bingo numbers to represent a second outcome set, the sum of said first outcome set including at least 24 indicia; and said processor programmed to (i) compare said Bingo number sets to the numbers of the card and if a concordance occurs, (ii) to control the display to identify the coordinate location of the concordance on the card, (iii)(a) to compare the pattern of identified coordinates from the first outcome set to the patterns stored at the first data structure and to issue an award to the player based upon the number of said winning patterns occurring on said card and (b) to compare the identified locations from the first and second sets to determine any additional identified coordinates and if all coordinates of the card are identified and, if so, issue a cover all award to the player. 11. The device of claim 10 wherein said first outcome set is twenty-five Bingo numbers. 12. The device of claim 10 wherein the second outcome set is ten Bingo numbers. 13. The device of claim 10 wherein the first outcome set if twenty-five Bingo numbers and the second outcome set is ten Bingo numbers. 14. The device of claim 10 wherein said processor is programmed to control the display to display each Bingo number selected. 15. An electronic device for playing a Bingo game comprising: a data processor; a display; means for a player to initiate play of a Bingo game, said processor controlling the display to display a standard 5×5 matrix Bingo card having a center free coordinate and at each remaining coordinate of the card a discrete Bingo number selected from a universe of Bingo numbers; a first data structure storing data corresponding to each of a plurality of winning patterns of identified coordinates on said card; means for the processor to select from the of said Bingo numbers universe a pre-selected number of Bingo numbers defining at least one outcome set; and said processor programmed to (i) compare said indicia sets to the Bingo numbers of the card and if a concordance occurs, (ii) to control the display to identify the coordinate location of the concordance on the card and (iii) to compare the pattern of identified coordinates from the at least one outcome set to the patterns stored at the first data structure and to issue an award to the player based upon the number of said winning patterns occurring on said card. 16. The device of claim 15 including issuing an award based upon the schedule of: TBL 1 Unit 2 Units 3 Units 4 Units 5 Units 1 Pattern 10 20 30 40 50 2 Patterns 20 40 60 80 100 3 Patterns 40 80 120 160 200 4 Patterns 80 160 240 320 400 5 Patterns 100 200 300 400 500 6 Patterns 200 400 600 800 1000 7 Patterns 400 800 1200 1600 2000 8 Patterns 1000 2000 3000 4000 5000 9 Patterns 2000 4000 6000 8000 10 K*10 Patterns 3000 6000 9000 12 K 15 K11 Patterns 5 K 10 K 15 K 20 K 25 KCover All** 10 K 20 K 30 K 40 K Pro****K = 1000**From both the first and second outcome sets***Progressive Jackpot. to, rotation of said rotating shaft; and reciprocating means for reciprocating the hollow shaft on the rotating shaft. 2. The paper sorting device as claimed in claim 1, wherein said rotating means comprises a plurality of guide slits formed in an interior of the hollow shaft and a plurality of rails formed on an outer circumference of the rotating shaft in correspondence to the guide slits of the hollow shaft. 3. The paper sorting device as claimed in claim 1, wherein said contact means comprises a plurality of rollers formed on an outer circumference of the hollow shaft for contact with the paper. 4. The paper sorting device as claimed in claim 1, wherein the reciprocating means comprises: a driving shaft disposed in parallel with the rotating shaft and at a predetermined interval therefrom for engaging and rotating with the rotating shaft; a guide block connected to one end of the hollow shaft and to a guide rail on a lower portion of the guide block, said guide block being reciprocated along the guide rail for reciprocating the hollow shaft; a guide cam disposed on the driving shaft and having a guide groove of a certain pattern formed on an outer circumference of the guide cam; a guide lever having one end hinged on an upper portion of the guide block and another end inserted in the guide groove; and a clutch for selectively transmitting a rotating force of the rotating shaft to the driving shaft. 5. The paper sorting device as claimed in claim 4, wherein the clutch comprises: a sector gear disposed around the driving shaft and selectively connected to a driving gear disposed on an end of the rotating shaft; a stepping cam disposed around the driving shaft and in parallel with the sector gear, and having a stepped portion on an outer circumference of the stepping cam; a stopper which contacts the stepped portion to restrict rotation of the stepping cam; a solenoid for selectively causing the stopper to selectively contact the stepped portion and release the contact; an oval cam disposed around the driving shaft and in parallel with the stepping cam; a lever for pressing and contacting the oval cam; and a spring for biasing the lever toward the oval cam. 6. The paper sorting device as claimed in claim 5, wherein the guide groove is formed on the outer circumference of the guide cam and has a helical shape. 7. The paper sorting device as claimed in claim 4, further comprising detecting means for detecting left and right positions of the hollow shaft. 8. The paper sorting device as claimed in claim 7, wherein the detecting means comprises: a photosensor; an eccentric cam disposed around the driving shaft; and a sensing shaft having a lever disposed at one end thereof for contacting an upper portion of the eccentric cam and an optic cutoff lever disposed at another end thereof; wherein the optic cutoff lever selectively cuts off and passes light transmitted by a light generating part to a light receiving part of the photosensor by reciprocating with rotation of the eccentric cam. 9. The paper sorting device as claimed in claim 1, further comprising detecting means for detecting left and right positions of the hollow shaft. 10. The paper sorting device as claimed in claim 9, wherein said reciprocating means comprises a driving shaft disposed in parallel with the rotating shaft for engaging and rotating with the rotating shaft, and wherein said detecting means comprises: a photosensor; an eccentric cam disposed around the driving shaft; and a sensing shaft having a lever disposed at one end thereof for contacting an upper portion of the eccentric cam and an optic cutoff lever disposed at another end thereof; wherein the optic cutoff lever selectively cuts off and passes light transmitted by a light generating part to a light receiving part of the photosensor by reciprocating with rotation of the eccentric cam. 11. The paper sorting device as claimed in claim 1, wherein said reciprocating