Patent US4203603A successfully refreshed from Google Patents.
US4203603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinball flipper mechanism
Assignee: Tomy Kogyo Co Ltd
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Filing: 1978-11-17
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Granted: 1980-05-20
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Expires: 1998-11-17
Abstract
Abstract A flipper mechanism for use in pinball and pinball type games can be constructed so as to utilize an elongated, linear channel serving as a bearing extending between the sides of the housing for the game and behind the playing platform employed in the game. Two plungers are located within the channel and are normally biased away from one another by a spring located within the channel between the plungers. Each plunger is connected to an arm of a bell crank lever by means of a pin and slot sliding connection. An arm of each bell crank lever is pivotally mounted so as to be capable of being pivoted when its associated plunger is pushed against the spring. The other arm of each bell crank lever is located above the playing platform so as to serve as a flipper as its associated plunger is pushed.
Inventors
- 👤 Yukio Konta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:10
CPC Classifications
A; A63; A63F; A63F7/00; A63F7/22; A63F7/24; A63F7/2409
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
382 words
A pinball flipper mechanism which includes: a housing having sides and a top, a playing platform located within said housing, said platform having a top visible from the exterior of said housing and a bottom, an elongated bearing extending between said sides of said housing, said bearing having ends exposed at said sides of said housing, said bearing being located adjacent and below said bottom of said playing platform, two plungers, each of said plungers being slidably mounted within said bearing, each of said plungers having an accessible end located so as to be accessible from the exterior of said housing at a side thereof, each of said plungers having an interior end located within said bearing adjacent to the bottom of said platform, said interior ends within said bearing being spaced from one another, a single spring means located within said bearing between said adjacent ends of said plungers for biasing said plungers so that they extend outwardly from said sides of said housing, two openings extending through and substantially perpendicular to said platform adjacent to said bearing, said openings being spaced from one another, two bell crank levers, each of said bell crank levers having a centrally located apex and first and second elongated arms, said first elongated arm serving as a flipper and being located adjacent said top of said platform and said second arm being located adjacent said bottom of said platform, said arms extending from said apex, each of said bell crank levers being positioned so that its apex extends through one of said openings two pivot means, one of said pivot means supporting the apex of one of said levers for rotation about an axis extending through its apex which is perpendicular to said platform, the other of said pivot means supporting the apex of the other of said levers for rotation about an axis extending through its apex which is perpendicular to said platform, and two separate pin and slot sliding connection means, a pin and slot sliding connection means connecting each of said second arms with one of said plungers, said pin and slot sliding connection means permitting said accessible ends of said plungers to be moved generally toward said sides of said housing so as to cause rotation of said bell crank levers.
Claim 2
Dependent Claim
382 words
A pinball flipper mechanism which includes: a housing having sides and a top, a playing platform located within said housing, said platform having a top visible from the exterior of said housing and a bottom, an elongated bearing extending between said sides of said housing, said bearing having ends exposed at said sides of said housing, said bearing being located adjacent and below said bottom of said playing platform, two plungers, each of said plungers being slidably mounted within said bearing, each of said plungers having an accessible end located so as to be accessible from the exterior of said housing at a side thereof, each of said plungers having an interior end located within said bearing adjacent to the bottom of said platform, said interior ends within said bearing being spaced from one another, a single spring means located within said bearing between said adjacent ends of said plungers for biasing said plungers so that they extend outwardly from said sides of said housing, two openings extending through and substantially perpendicular to said platform adjacent to said bearing, said openings being spaced from one another, two bell crank levers, each of said bell crank levers having a centrally located apex and first and second elongated arms, said first elongated arm serving as a flipper and being located adjacent said top of said platform and said second arm being located adjacent said bottom of said platform, said arms extending from said apex, each of said bell crank levers being positioned so that its apex extends through one of said openings two pivot means, one of said pivot means supporting the apex of one of said levers for rotation about an axis extending through its apex which is perpendicular to said platform, the other of said pivot means supporting the apex of the other of said levers for rotation about an axis extending through its apex which is perpendicular to said platform, and two separate pin and slot sliding connection means, a pin and slot sliding connection means connecting each of said second arms with one of said plungers, said pin and slot sliding connection means permitting said accessible ends of said plungers to be moved generally toward said sides of said housing so as to cause rotation of said bell crank levers.
Claim 3
Dependent Claim
31 words
A pinball flipper mechanism as claimed in claim 1 wherein: each of said pin and slot sliding connection means serves to limit movement of its associated plunger out of said bearing.
Claim 4
Dependent Claim
42 words
A pinball flipper mechanism as claimed in claim 1 wherein: each of said pin and slot sliding connection means comprises a slot located in one of said plungers and a pin located on one of said second arms remote from said apex.
Claim 5
Dependent Claim
45 words
A pinball flipper mechanism as claimed in claims 1, 2 or 3 wherein: said bearing is linear and having a non-round cross-sectional configuration, and each of said plungers being shaped so as to have a cross-sectional configurations corresponding to the cross-sectional configuration of said bearing.
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) | 1983-05-20 | 1983-11-19 | 1984-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-20 | 1987-11-19 | 1988-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-20 | 1991-11-19 | 1992-05-20 | $7700.00 | Window Closed / Lapsed |