US4555935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pressure testing of can bodies and lids
Assignee: STROH CONTAINER COMPANY 100 RIVER PLACE DETROIT MICHIGAN A CORP OF WISCONSIN
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Filing: 1983-10-27
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Granted: 1985-12-03
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Expires: 2003-10-27
Abstract
Abstract An apparatus for pressure testing a can body. The apparatus includes a housing having a pivotable cover and an empty can with the lid attached is placed in a cradle in the housing. As the cover is moved to the closed position, a hollow needle, operably connected to the cover, is automatically inserted through the wall of the can body. On locking of the cover in the closed position, an electric circuit can be established to introduce gas under pressure through the needle into the can body. A readout of the pressure required to bulge the can body is given, thereby indicating whether the can body meets manufacturing specifications.
Inventors
- 👤 Karl Elert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:46
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08; G01N3/10; G01N3/12
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
115 words
An apparatus for the pressure testing of closed can bodies, comprising a housing having an open portion, a cover to enclose said open portion and being movable between an open position and a closed position, can body supporting means disposed within the housing for supporting a can body to be tested, can penetrating means disposed within the housing, actuating means operable as a consequence of the cover moving from the open position to the closed position for actuating said can penetrating means to cause said can penetrating means to penetrate the wall of the can body, and gas supply means for introducing a gas under pressure through said can penetrating means into said can body.
Claim 2
Independent Claim
115 words
An apparatus for the pressure testing of closed can bodies, comprising a housing having an open portion, a cover to enclose said open portion and being movable between an open position and a closed position, can body supporting means disposed within the housing for supporting a can body to be tested, can penetrating means disposed within the housing, actuating means operable as a consequence of the cover moving from the open position to the closed position for actuating said can penetrating means to cause said can penetrating means to penetrate the wall of the can body, and gas supply means for introducing a gas under pressure through said can penetrating means into said can body.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1, wherein said can body support means comprises a cradle.
Claim 4
Dependent Claim
69 words
The apparatus of claim 1, wherein said can penetrating means is mounted for movement between an inoperative position wherein said can penetrating means is located out of contact with the can body positioned in said can body support means and an operative position wherein said can penetrating means penetrates the wall of said can body, said actuating means moving said can penetrating means between the inoperative and operative positions.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1, wherein said open portion is an open top and said cover is hinged to said housing.
Claim 6
Dependent Claim
20 words
The apparatus of claim 3, wherein said actuating means comprises a linkage interconnecting the cover and said can penetrating means.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1, wherein said can penetrating means includes a needle having a sharpened tip disposed to penetrate the wall of the can body.
Claim 8
Dependent Claim
26 words
The apparatus of claim 1, and including locking means for locking the cover to the housing and movable between a locked position and an unlocked position.
Claim 9
Dependent Claim
24 words
The apparatus of claim 7, and including means responsive to the locking means moving to the locked position for activating said gas supply means.
Claim 10
Independent Claim
187 words
An apparatus for the pressure testing of empty can bodies, comprising a housing having an open side, a cover to enclose said open side and movable between an open position and a closed position, support means disposed within the housing to support a closed empty can body to be tested, a can penetrating member disposed within the housing and adapted to penetrate the wall of a can body supported on said support means, means for mounting said can penetrating member for movement between an inoperative position and an operative position wherein said can penetrating member penetrates the wall of the can body, actuating means operably connected to the can penetrating member and responsive to the cover being moved toward the closed position for moving said penetrating member from the inoperative position to the operative position, locking means for locking the cover to the housing and having a locked position and an unlocked position, gas supply means for introducing gas through the can penetrating member into said can body, and means responsive to the locking means being moved to the locked position for activating said gas supply means.
Claim 11
Independent Claim
187 words
An apparatus for the pressure testing of empty can bodies, comprising a housing having an open side, a cover to enclose said open side and movable between an open position and a closed position, support means disposed within the housing to support a closed empty can body to be tested, a can penetrating member disposed within the housing and adapted to penetrate the wall of a can body supported on said support means, means for mounting said can penetrating member for movement between an inoperative position and an operative position wherein said can penetrating member penetrates the wall of the can body, actuating means operably connected to the can penetrating member and responsive to the cover being moved toward the closed position for moving said penetrating member from the inoperative position to the operative position, locking means for locking the cover to the housing and having a locked position and an unlocked position, gas supply means for introducing gas through the can penetrating member into said can body, and means responsive to the locking means being moved to the locked position for activating said gas supply means.
Claim 12
Independent Claim
150 words
An apparatus for pressure testing of empty can bodies, comprising a housing having an opening therein, a cover to enclose the opening and movable between an open and a closed position, support means disposed within the housing for supporting an empty can body to be tested, a hollow can penetrating member having a sharpened tip disposed within the housing and movable between an inoperative position where said sharpened tip is out of contact with said can body supported on said support means and an operative position wherein said sharpened tip penetrates the wall of the can body, actuating means for moving the can penetrating member between the inoperative and operative positions, gas supply means for introducing gas through said can penetrating member into the can body, and means responsive to the cover being in the closed position for activating said gas supply means and supplying gas into said can body.
Claim 13
Independent Claim
150 words
An apparatus for pressure testing of empty can bodies, comprising a housing having an opening therein, a cover to enclose the opening and movable between an open and a closed position, support means disposed within the housing for supporting an empty can body to be tested, a hollow can penetrating member having a sharpened tip disposed within the housing and movable between an inoperative position where said sharpened tip is out of contact with said can body supported on said support means and an operative position wherein said sharpened tip penetrates the wall of the can body, actuating means for moving the can penetrating member between the inoperative and operative positions, gas supply means for introducing gas through said can penetrating member into the can body, and means responsive to the cover being in the closed position for activating said gas supply means and supplying gas into said can body.
Claim 14
Dependent Claim
20 words
The apparatus of claim 9, wherein said actuating means comprises a linkage interconnecting the cover and said can penetrating member.
Claim 15
Dependent Claim
14 words
The apparatus of claim 9, wherein said can penetrating member is a hollow needle.
Claim 16
Dependent Claim
39 words
The apparatus of claim 10, wherein said means for moving the can penetrating member is operably connected to the cover and is operable as a consequence of the cover being moved from the open position toward the closed position.
Claim 17
Dependent Claim
42 words
The apparatus of claim 9, wherein said support means includes a rotatable saddle to engage the wall of the can body, said saddle having a plurality of curved surfaces, each having a curvature to complement the curvature of different diameter can bodies.
Claim 18
Independent Claim
113 words
The method for the pressure testing of can bodies, comprising the step of placing a closed empty can body to be tested in a support in a housing having an open portion, said open portion adapted to be enclosed by a cover, moving the cover from the open to the closed position, penetrating a hollow needle through the wall of the can body as a consequence of moving the cover from the open to the closed position, locking the cover in the closed position, introducing gas under pressure through said needle into the can body, said gas causing the can body to be deformed, and determining the pressure required to cause said deformation.
Claim 19
Independent Claim
113 words
The method for the pressure testing of can bodies, comprising the step of placing a closed empty can body to be tested in a support in a housing having an open portion, said open portion adapted to be enclosed by a cover, moving the cover from the open to the closed position, penetrating a hollow needle through the wall of the can body as a consequence of moving the cover from the open to the closed position, locking the cover in the closed position, introducing gas under pressure through said needle into the can body, said gas causing the can body to be deformed, and determining the pressure required to cause said deformation.
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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) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |