Patent US4684128A successfully refreshed from Google Patents.
US4684128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grab for slot machines
Assignee: ELEKTRO AUTOMATEN VERSTRAETEN PVBA A CORP OF BELGIUM
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Filing: 1986-04-10
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Granted: 1987-08-04
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Expires: 2006-04-10
Abstract
Abstract In a slot machine having a cabinet in which a grab is suspended by means of cable from a crab which can move in various directions, the grab being capable of picking up prizes from a surface over which the grab is suspended, swinging of the grab during movement and directional changes of the crab and tipping of the grab upon picking up of a prize is restricted by means of a tube through which the cable passes.
Inventors
- 👤 Achiel Verstraeten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:42
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/30; G; G07; G07F; G07F17/00; G07F17/32
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A device for stably supporting a grab from a crab of a crane type slot machine, comprising: a crab adapted to be moved inside the slot machine, said crab having a cable and means for raising and lowering the cable; and a grab including a casing for a solenoid coil, said casing being connected to a lower end of the cable, a plurality of arms adapted to grab a prize inside the slot machine, said arms being pivotally connected to the casing, and a first hollow tube connected to the casing for surrounding the cable so that the grab does not extremely incline when the grab holds a prize and does not swing when the crab moves inside the slot machine.
Claim 2
Independent Claim
121 words
A device for stably supporting a grab from a crab of a crane type slot machine, comprising: a crab adapted to be moved inside the slot machine, said crab having a cable and means for raising and lowering the cable; and a grab including a casing for a solenoid coil, said casing being connected to a lower end of the cable, a plurality of arms adapted to grab a prize inside the slot machine, said arms being pivotally connected to the casing, and a first hollow tube connected to the casing for surrounding the cable so that the grab does not extremely incline when the grab holds a prize and does not swing when the crab moves inside the slot machine.
Claim 3
Dependent Claim
92 words
A device according to claim 1, in which said crab further includes a guide connected to the crab, a second hollow tube having upper and lower rings and an inner diameter slightly larger than an outer diameter of the first hollow tube, said second hollow tube being slidably supported by the guide, and a spring situated between the lower ring and the guide so that when the grab is raised to place the first hollow tube inside the second hollow tube, the spring actuates to gently stop the movement of the crab.
Claim 4
Dependent Claim
46 words
A device according to claim 2, further including at least one middle hollow tube telescopically located inside the second hollow tube when the grab is located at an upper position and suspended by the second hollow tube when the grab is located at a lower position.
Claim 5
Dependent Claim
59 words
A device according to claim 3, in which said crab further includes a switch situated between the upper ring and the guide so that when the grab is raised and lifts the second hollow tube, the switch is actuated to stop the movement of the grab and to move the crab to an initial position in the slot machine.
References Cited (Backward Citations)
US2224906A
Cited
US2600849A
Cited
US2916162A
Cited
SU471278A1
Cited
SU1062173A1
Cited
DD214356A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |