← Back to Patent Explorer
US4874173A Expired / Lapsed US ⏱️ 0.0 years remaining

Slot machine

Assignee: Individual
•
Filing: 1988-05-02
•
Granted: 1989-10-17
•
Expires: 2008-05-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A slot machine has a wheel mechanism including a plurality of motors, a plurality of rotary shafts rotated about their respective axes by the driving forces of the motors, and symbol carrying members each having a relatively small radius of gyration and carrying a symbol on its visible surface. The symbol carrying members are spaced apart at equal interals in at least three horizontal rows and at least three vertical columns. Accordingly, the depth of the casing frame of the slot machine can be reduced to a remarkable extent, and a player can immediately identify the winning line visually.

Inventors

  • 👤 Ryutaro Kishishita

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 15:26
CPC Classifications
A; A63; A63F; A63F9/00; G; G07; G07F; G07F17/00; G07F17/32; G07F17/3202; G07F17/3204; G07F17/3211; G07F17/3213; A63F3/00; A63F3/00003; A63F3/00094; G07F17/34

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 110 words
A wheel mechanism for a slot machine, comprising: (a) an n-by-n spaced apart matrix of relatively small diameter cylindrical bodies, where n is at least three; (b) n-times-n independently controlled motors, each of said motors being capable of rotating one of said bodies; (c) a control means operated by a slot machine user for selectively stopping the rotation of said bodies, said control means comprising: n first stopping devices for simutaneously stopping a line of said bodies in said matrix, n-times-n second stopping devices for stopping each of said bodies individually, whereby a user may determine the number of bodies to be stopped and the order of stopping said bodies.
Claim 2
Dependent Claim 110 words
A wheel mechanism for a slot machine, comprising: (a) an n-by-n spaced apart matrix of relatively small diameter cylindrical bodies, where n is at least three; (b) n-times-n independently controlled motors, each of said motors being capable of rotating one of said bodies; (c) a control means operated by a slot machine user for selectively stopping the rotation of said bodies, said control means comprising: n first stopping devices for simutaneously stopping a line of said bodies in said matrix, n-times-n second stopping devices for stopping each of said bodies individually, whereby a user may determine the number of bodies to be stopped and the order of stopping said bodies.
Claim 3
Dependent Claim 138 words
A wheel mechanism for a slot machine, comprising: (a) an n-by-n spaced apart matrix of rotating plate devices, each said device having plural plates extending radially from an axis, where n is at least three; (b) plural motors, each of said motors being capable of rotating n of said bodies; (c) a control means operated by a slot machine user for selectively stopping the rotation of said bodies, said control means comprising: n actuators, one of said actuators for each row of said matrix of plate devices, n stoppers, each of said stoppers being driven by one of said actuators, said stoppers having n extensions aligned with n of said plate devices in a row of said matrix of plate devices, whereby a user may selectively stop all of said plate devices in a row of said matrix.
Claim 4
Dependent Claim 138 words
A wheel mechanism for a slot machine, comprising: (a) an n-by-n spaced apart matrix of rotating plate devices, each said device having plural plates extending radially from an axis, where n is at least three; (b) plural motors, each of said motors being capable of rotating n of said bodies; (c) a control means operated by a slot machine user for selectively stopping the rotation of said bodies, said control means comprising: n actuators, one of said actuators for each row of said matrix of plate devices, n stoppers, each of said stoppers being driven by one of said actuators, said stoppers having n extensions aligned with n of said plate devices in a row of said matrix of plate devices, whereby a user may selectively stop all of said plate devices in a row of said matrix.
Claim 5
Dependent Claim 133 words
A wheel mechanism for a slot machine comprising: a plurality of symbol carrying means, each having a relatively small radius of gyration and carrying a symbol on its visible surface, said symbol carrying means being spaced apart at equal intervals in three horizontal rows and three vertical columns; a face panel including a display window for each of said symbol carrying means which allows a player to visually confirm symbols on said symbol carrying means, said face panel being disposed in front of said symbol carrying means; and nine prize lines formed on said face panel between said display windows to respectively link said symbols which are visible in said display windows formed in said face panel including one diamond-shaped said prize line, said prize lines not being visible in said display windows.
Claim 6
Dependent Claim 133 words
A wheel mechanism for a slot machine comprising: a plurality of symbol carrying means, each having a relatively small radius of gyration and carrying a symbol on its visible surface, said symbol carrying means being spaced apart at equal intervals in three horizontal rows and three vertical columns; a face panel including a display window for each of said symbol carrying means which allows a player to visually confirm symbols on said symbol carrying means, said face panel being disposed in front of said symbol carrying means; and nine prize lines formed on said face panel between said display windows to respectively link said symbols which are visible in said display windows formed in said face panel including one diamond-shaped said prize line, said prize lines not being visible in said display windows.
Claim 7
Dependent Claim 122 words
A wheel mechanism for a slot machine comprising: (a) plural symbol carrying means spaced apart in at least three horizontal rows and at least three vertical columns; (b) a multiplicity of radially arrayed, symbol-carrying plates extending from each of said symbol carrying means; (c) plural motors, one for driving said symbol carrying means in each one of said horizontal rows; (d) plural actuators, one for each of said horizontal rows; and (e) plural stoppers driven by each of said actuators, having plural extensions, one of said extensions for each of said vertical columns, said extensions being aligned with said plates for simultaneously stopping rotation of all said plates in one of said rows when driven by the corresponding one of said actuators.
Claim 8
Dependent Claim 122 words
A wheel mechanism for a slot machine comprising: (a) plural symbol carrying means spaced apart in at least three horizontal rows and at least three vertical columns; (b) a multiplicity of radially arrayed, symbol-carrying plates extending from each of said symbol carrying means; (c) plural motors, one for driving said symbol carrying means in each one of said horizontal rows; (d) plural actuators, one for each of said horizontal rows; and (e) plural stoppers driven by each of said actuators, having plural extensions, one of said extensions for each of said vertical columns, said extensions being aligned with said plates for simultaneously stopping rotation of all said plates in one of said rows when driven by the corresponding one of said actuators.

References Cited (Backward Citations)

US4773647A Cited
GB2130413A Cited
US4722527A Cited
WO1986005407A1 Cited
US4718672A Cited
US4695053A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-10-16 1993-04-17 1993-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-10-16 1997-04-17 1997-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-10-16 2001-04-17 2001-10-17 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag