US4002336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Table tennis training device
Assignee: Individual
•
Filing: 1975-05-12
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Granted: 1977-01-11
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Expires: 1995-05-12
Abstract
Abstract A table tennis training device for use in connection with a table tennis table, which includes a tennis ball catcher having a pocket for collecting the tennis table ball which is then, due to a suction effect, moved from the pocket into a gun operable to be adjusted in a vertical plane and to pivot back and forth along a horizontal plane. After the ball has entered the gun it is by air under pressure passed through the barrel of the gun and prior to leaving the muzzle of the gun subjected to a spin (English). The training device according to the invention comprises means for varying the spin and also for varying the speed at which the balls follow each other which are shot out of the gun. The device furthermore comprises means for varying the suction and the pressure at which the balls are fired by the gun.
Inventors
- 👤 Dennis Beaver
- 👤 J. R. Hensley
- 👤 Jerry Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/40; A63B69/409; A63B2069/402; A63B2102/00; A63B2102/16; A63B47/00; A63B47/02; A63B47/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
257 words
A table tennis training device for use in connection with a table tennis table, which includes: a stand adapted to be placed at one end of a table tennis table, a tennis ball catcher supported by said stand and comprising a screen having a front side forming the side intended to face the table tennis table in connection with which said training device is to be used, said screen also comprising a rear side and being provided with a pocket on said front side for catching and gathering table tennis balls thrown onto the front side of said screen, a gun supported by said stand and arranged on the rear side of said screen, said gun having a barrel extending from the rear side of said screen through the latter to the front side thereof, first conduit means leading from said pocket to said barrel for establishing communication between said pocket and said barrel and for conveying table tennis balls from said pocket into said barrel, air blower means, second conduit means having one end thereof connected to said air blower means for communication therewith and having its other end connected to said barrel for communication therewith at an area more remote from the front side of said screen than the area where said first conduit leads into said barrel, and a partition with an orifice of substantially smaller diameter than the internal diameter of said second conduit, said partition being interposed between those areas where said first and second conduit means respectively lead into said barrel.
Claim 2
Dependent Claim
257 words
A table tennis training device for use in connection with a table tennis table, which includes: a stand adapted to be placed at one end of a table tennis table, a tennis ball catcher supported by said stand and comprising a screen having a front side forming the side intended to face the table tennis table in connection with which said training device is to be used, said screen also comprising a rear side and being provided with a pocket on said front side for catching and gathering table tennis balls thrown onto the front side of said screen, a gun supported by said stand and arranged on the rear side of said screen, said gun having a barrel extending from the rear side of said screen through the latter to the front side thereof, first conduit means leading from said pocket to said barrel for establishing communication between said pocket and said barrel and for conveying table tennis balls from said pocket into said barrel, air blower means, second conduit means having one end thereof connected to said air blower means for communication therewith and having its other end connected to said barrel for communication therewith at an area more remote from the front side of said screen than the area where said first conduit leads into said barrel, and a partition with an orifice of substantially smaller diameter than the internal diameter of said second conduit, said partition being interposed between those areas where said first and second conduit means respectively lead into said barrel.
Claim 3
Dependent Claim
39 words
A device according to claim 1, in which said gun is pivotable along a horizontal plane, and which includes motor means operatively connected to said gun for pivoting the same back and forth along a portion of a circle.
Claim 4
Dependent Claim
16 words
A device according to claim 2, in which said motor means is a variable speed motor.
Claim 5
Dependent Claim
25 words
A device according to claim 1, which includes means pivotally engaging said gun for pivoting the same about both a horizontal and a vertical axis.
Claim 6
Dependent Claim
48 words
A device according to claim 1, which includes: horizontal pin means supporting said gun for pivotal movement of the latter about a horizontal axis, and adjusting means operatively connected to said gun for pivoting said gun about said pin means to thereby set the elevation of said barrel.
Claim 7
Dependent Claim
90 words
A device according to claim 1, in which said gun includes: a barrel comprising a first section and a second section frictionally and telescopically arranged in said first section and partially protruding from said first section, said second section including the muzzle of said gun and being rotatably adjustable relative to said first section, that part of said second section which protrudes from said first section being provided with slot means, and elastic band means arranged in said slot means and partially protruding into the interior of said second section.
Claim 8
Dependent Claim
25 words
A device according to claim 1, in which at least a section of said first and second conduit means consists of a flexible hose section.
Claim 9
Dependent Claim
25 words
A device according to claim 7, which includes a bracket substantially vertically adjustably connected to said stand and supporting said gun and said motor means.
Claim 10
Dependent Claim
46 words
A device according to claim 1, in which said second conduit means has an opening through a wall portion thereof, and which includes closure means associated with said opening and adjustable relative to said opening for selectively opening and closing said opening to any desired extent.
Claim 11
Dependent Claim
50 words
A device according to claim 1, in which said first conduit means is provided with a window, and which includes a friction wheel frictionally engaging through said window every table tennis ball passing by said window, and control motor means drivingly connected to said friction wheel for driving the same.
Claim 12
Dependent Claim
17 words
A device according to claim 10, in which said control motor means is a variable speed motor.
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) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |