US4522399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for generating impact sound for slot machine
Assignee: Universal Entertainment Corp
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Filing: 1984-08-29
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Granted: 1985-06-11
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Expires: 2004-08-29
Abstract
Abstract A device for generating an impact sound for a slot machine is disclosed, which is constructed to intentionally produce an impact sound when reels start to be rotated by motors. An operating member is rotated in an interlocked relation to the rotation of a handle while storing restoring force in a spring. When the handle is turned to a predetermined extent, the motors are started to cause rotation of the reels. Substantially simultaneously with the start of rotation of the reels, the operating member is returned by the restoring force stored in the spring, and an impact force is generated with the collision of the returned operating member with a stopper.
Inventors
- 👤 Ikuo Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:26
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/32; G07F17/34
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
In a slot machine of the type in which a display of a plurality of rotating juxtaposed reels is initiated by rotating a handle, the improvement comprising: a first member movable in an interlocked relation to said handle; a second member coupled to said first member and movable in unison therewith free from movement relative thereto during forward rotation of said handle; means for disengaging said first and second members from each other substantially at the end of the full forward rotation of said handle; a spring for biasing said second member in the direction opposite to the direction of movement of said first member; said second member being mounted for rapid free return motion under the influence of said spring; and a third member for producing an impact sound when struck by said second member in the return motion thereof after disengagement from said first member.
Claim 2
Dependent Claim
147 words
In a slot machine of the type in which a display of a plurality of rotating juxtaposed reels is initiated by rotating a handle, the improvement comprising: a first member movable in an interlocked relation to said handle; a second member coupled to said first member and movable in unison therewith free from movement relative thereto during forward rotation of said handle; means for disengaging said first and second members from each other substantially at the end of the full forward rotation of said handle; a spring for biasing said second member in the direction opposite to the direction of movement of said first member; said second member being mounted for rapid free return motion under the influence of said spring; and a third member for producing an impact sound when struck by said second member in the return motion thereof after disengagement from said first member.
Claim 3
Dependent Claim
19 words
The slot machine according to claim 1, wherein said first member is secured to the shaft of said handle.
Claim 4
Dependent Claim
17 words
The slot machine according to claim 2, wherein said first member carries a pivotally mounted locking pawl.
Claim 5
Dependent Claim
21 words
The slot machine according to claim 3, wherein said locking pawl can be engaged with and disengaged from said second member.
Claim 6
Dependent Claim
53 words
The slot machine according to claim 4, wherein said disengaging means is disposed in a range of movement of said locking pawl, a pawl portion of said locking pawl being disengaged from a locking section of said second member when the free end of said locking pawl is received by said disengaging means.
Claim 7
Dependent Claim
39 words
The slot machine according to claim 5, wherein said second member is freely rotatably mounted on a shaft coupled to said first member and is restrained in its movement of rotating only by said pawl and said third member.
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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |