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US4184683A Expired / Lapsed US ⏱️ 0.0 years remaining

Slot machine apparatus

Assignee: Bally Gaming International Inc
•
Filing: 1978-05-22
•
Granted: 1980-01-22
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Expires: 1998-05-22
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Abstract

Abstract An amusement apparatus including a plurality of coaxially mounted rotatable drums, each bearing on its periphery a variety of symbols. A motor is provided for rotating the drums during a playing cycle and solenoid operated panels are provided for arresting rotation of the drums whereby each drum displays a symbol in a viewing area. An electrical circuit is provided, which in advance of the playing cycle, permits the player to select a specific symbol at which a drum will stop. Also, an electrical circuit may be provided to prevent rotation of a drum during the next playing cycle thereby holding the drum at a selected symbol.

Inventors

  • 👤 Donald E. Hooker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 22:10
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/32; G07F17/326; G07F17/3262; G07F17/3265

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 77 words
In an amusement apparatus having a plurality of rotating drums, each bearing a plurality of types of symbols and including means for rotating said drums and means for arresting said drums to display various combinations of types of symbols, first means associated with said arresting means of one of said drums for permitting a player to choose, in advance of the drum rotation, any one of the types of symbols to be displayed when the drum stops.
Claim 2
Dependent Claim 77 words
In an amusement apparatus having a plurality of rotating drums, each bearing a plurality of types of symbols and including means for rotating said drums and means for arresting said drums to display various combinations of types of symbols, first means associated with said arresting means of one of said drums for permitting a player to choose, in advance of the drum rotation, any one of the types of symbols to be displayed when the drum stops.
Claim 3
Dependent Claim 36 words
The invention in accordance with claim 1 wherein a second means is provided for permitting a player to keep, in advance of actuation of said rotating means, a specific type of symbol displayed on the drum.
Claim 4
Dependent Claim 54 words
The invention in accordance with claim 2 wherein the first means includes a rotary switch which is operated by said drum to complete a circuit when a selected type of symbol is displayed on the drum, and means connected to said arresting means for stopping rotation of the drum when the circuit is completed.
Claim 5
Dependent Claim 54 words
The invention in accordance with claim 1 wherein the first means includes a rotary switch which is operated by said drum to complete a circuit when a selected type of symbol is displayed on the drum, and means connected to said arresting means for stopping rotation of the drum when the circuit is completed.
Claim 6
Dependent Claim 97 words
The invention in accordance with claim 4 wherein the rotary switch includes a wiper coupled to said one drum so as to be rotated therewith, a plurality of contacts one for each type of symbol which can be selected, each of said contacts being positioned so as to be touched by the wiper when the type of symbol represented by that contact is in position to be displayed, and selective means associated with each type of symbol for rendering said contact associated with that type of symbol operative to complete the circuit when touched by said wiper.

References Cited (Backward Citations)

US2579241A Cited
US2527661A Cited
US3034790A Cited
GB1178302A Cited
GB1242298A Cited
GB1292712A Cited
US3733075A Cited
US4097048A Cited
US4037845A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-01-21 1983-07-23 1984-01-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-01-21 1987-07-23 1988-01-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-01-21 1991-07-23 1992-01-22 $7700.00 Window Closed / Lapsed

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