Patent US4429876A successfully refreshed from Google Patents.
US4429876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinball machine and play feature thereof
Assignee: Williams Electronics Games Inc
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Filing: 1981-12-24
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Granted: 1984-02-07
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Expires: 2001-12-24
Abstract
Abstract A pinball machine having a playfield on which at least one drop target is supported for selective actuation relative to the playfield. The drop target includes a post having a conical shaped flange at its upper end, the post being moveable between a position wherein the flange and a portion of the post are disposed above the playfield for impingement by a game ball, and being responsive to impact by the game ball for movement to a position wherein a planar surface on the upper flange is substantially flush with the playfield so as to enable the game ball to pass freely thereover. Movement of the drop target from its raised position to its lowered position upon impact by a game ball serves to propel the ball away from the target.
Inventors
- 👤 Ronald D. Halliburton
- 👤 James H. Pearson
- 👤 Robert J. Sava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:51
CPC Classifications
A; A63; A63F; A63F7/00; A63F7/22; A63F7/30; A63F7/305; A63F7/3065; A63F7/3075
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
100 words
A drop target for use in conjunction with a playfield and a ball, comprising: a target member having a post and a flange atop the post, first means for positioning the flange and a portion of the post above the playfield so as to position the target in an up position responsive to a control stimulus and second means for positioning the target beneath and flush with the playfield so as to allow the ball to pass thereover unobstructed responsive to the collision of the ball from any direction with the target when the target is in the up position.
Claim 2
Dependent Claim
100 words
A drop target for use in conjunction with a playfield and a ball, comprising: a target member having a post and a flange atop the post, first means for positioning the flange and a portion of the post above the playfield so as to position the target in an up position responsive to a control stimulus and second means for positioning the target beneath and flush with the playfield so as to allow the ball to pass thereover unobstructed responsive to the collision of the ball from any direction with the target when the target is in the up position.
Claim 3
Dependent Claim
15 words
The drop target as in claim 1 further comprising means for providing said control stimulus.
Claim 4
Dependent Claim
29 words
The drop target as in claim 1 wherein said second means detects the collision of the ball with the target responsive to the ball striking and raising the flange.
Claim 5
Dependent Claim
38 words
The drop target as in claim 3 further characterized in that the flange propels the ball away from the target member responsive to said second means positioning the target member from the up position to the down position.
Claim 6
Dependent Claim
194 words
A drop target for use in a pinball machine having a playfield, comprising: a target body, having a top surface, which consists of a post and a flange attached to top portion of the post, the post extending through a hole in the playfield, wherein the drop target has an up position and a down position, the target body extending above a top surface of the playfield so as to block the passage of a ball rolling along the playfield from any direction when in the up position, the target body being substantially below the top surface of the playfield with the top surface of the target body being substantially coplanar with the top surface of the playfield whereby a ball can roll freely over the target with the drop target in the down position; means for detecting when a ball rolling along a playfield has struck the target body when the drop target is in the up position, means for forcing the drop target from the up position to the down position responsive to the means for detecting; and means for resetting the drop target from the down position to the up position.
Claim 7
Dependent Claim
194 words
A drop target for use in a pinball machine having a playfield, comprising: a target body, having a top surface, which consists of a post and a flange attached to top portion of the post, the post extending through a hole in the playfield, wherein the drop target has an up position and a down position, the target body extending above a top surface of the playfield so as to block the passage of a ball rolling along the playfield from any direction when in the up position, the target body being substantially below the top surface of the playfield with the top surface of the target body being substantially coplanar with the top surface of the playfield whereby a ball can roll freely over the target with the drop target in the down position; means for detecting when a ball rolling along a playfield has struck the target body when the drop target is in the up position, means for forcing the drop target from the up position to the down position responsive to the means for detecting; and means for resetting the drop target from the down position to the up position.
Claim 8
Dependent Claim
74 words
The drop target of claim 5 wherein the flange attached to the top portion of the post is shaped so that when a ball rolling along the playfield comes in contact with the target body of a drop target when in the up position, the means for forcing moves the drop target from the up position to the down position, causing the flange to contact and propel the ball away from the target body.
Claim 9
Dependent Claim
94 words
A pinball game comprising: a playfield, a ball, a target member having a post and a flange atop the post, first means for positioning the flange and a portion of the post above the playfield so as to position the target in an up position responsive to a control stimulus; and; second means for positioning the target beneath and flush with the playfield so as to allow the ball to pass thereover unobstructed responsive to the collision of the ball from any direction with the target when the target is in the up position.
Claim 10
Dependent Claim
94 words
A pinball game comprising: a playfield, a ball, a target member having a post and a flange atop the post, first means for positioning the flange and a portion of the post above the playfield so as to position the target in an up position responsive to a control stimulus; and; second means for positioning the target beneath and flush with the playfield so as to allow the ball to pass thereover unobstructed responsive to the collision of the ball from any direction with the target when the target is in the up position.
Claim 11
Dependent Claim
15 words
The pinball game as in claim 7 further comprising: means for providing said control stimulus.
Claim 12
Dependent Claim
29 words
The pinball game as in claim 7 wherein: said second means detects the collision of the ball with the target responsive to the ball striking and raising the flange.
Claim 13
Dependent Claim
38 words
The pinball game as in claim 9 further characterized in that the flange propels the ball away from the target member responsive to said second means positioning the target member from the up position to the down position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |