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US4658151A
Expired / Lapsed
US
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Battery-supported integrated switching element
Assignee: Renata AG
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Filing: 1985-01-29
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Granted: 1987-04-14
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Expires: 2005-01-29
Abstract
Abstract The circuit element contains inside a cup-shaped plastic housing (3) a gas-tight primary battery (B) and a wiring arrangement which is arranged next to the battery (B) in the hollow space (3') of the housing and which comprises semiconductor switching elements (D 1 , Tr) and conductor connections (8, 13/13', 15, 16). The battery (B) and wiring arrangement are hermetically disposed in the housing (3) as a result of a casting compound (19). The switching element is provided with plug-in pins (13/13', 16) which are brought out to its surface and which can be directly soldered into a circuit board. Switching elements of this type can be used especially as backup voltage source for memory systems of the non-self-holding type.
Inventors
- 👤 Paul Wyser
- 👤 Heinrich Uebelhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:59
CPC Classifications
H; H10; H10W; H10W42/00; G; G11; G11C; G11C5/00; G11C5/14; G11C5/141
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A battery-supported integrated switching element, comprising a cup-shaped housing (3;3') provided with a hollow space (3'), containing: a primary battery (B) of the gas-tight type; a number of spacers (6; 25-28) which keep the battery (B) at a distance from a cover plate (4) in the hollow space (3') of the housing, and a number of stop elements (5.2, 5.3, 7, 10; 5.2, 5.3, 7.1, 28.1) which laterally center the battery in the hollow space (3') of the housing; a wiring arrangement consisting of semiconductor switching elements and conductor connections (8, 13/13', 15-18/18') and a number of holding devices (11, 12, 14, 29) which fix the wiring elements in the hollow space of the housing; and a casting compound (19) which envelops in a gastight manner the battery (B) and the wiring elements in the hollow space of the housing.
Claim 2
Dependent Claim
140 words
A battery-supported integrated switching element, comprising a cup-shaped housing (3;3') provided with a hollow space (3'), containing: a primary battery (B) of the gas-tight type; a number of spacers (6; 25-28) which keep the battery (B) at a distance from a cover plate (4) in the hollow space (3') of the housing, and a number of stop elements (5.2, 5.3, 7, 10; 5.2, 5.3, 7.1, 28.1) which laterally center the battery in the hollow space (3') of the housing; a wiring arrangement consisting of semiconductor switching elements and conductor connections (8, 13/13', 15-18/18') and a number of holding devices (11, 12, 14, 29) which fix the wiring elements in the hollow space of the housing; and a casting compound (19) which envelops in a gastight manner the battery (B) and the wiring elements in the hollow space of the housing.
Claim 3
Dependent Claim
49 words
A switching element as claimed in claim 1, wherein the conductor connections comprise plug-in pins (13, 13') which are preferably disposed in the corner areas of the hollow space and the one end of which is centered in a socket (11, 12) which is connected to the housing (3).
Claim 4
Dependent Claim
29 words
A switching element as claimed in claim 1, wherein the stop elements, which laterally center the battery (B), are provided with members (9, 10) which elastically enclose the battery.
Claim 5
Dependent Claim
49 words
A switching element as claimed in claim 2, wherein the opening of the housing is closed with a closing plate (20) which rests at least partially on the casting compound (19) and which is also centered by the plug-in pins (13, 13') in the vicinity of its outer end.
Claim 6
Dependent Claim
52 words
A switching element as claimed in any of claims 1 to 4, wherein the side walls of the housing (5.1-5.4) are provided, preferably in the corner areas, with projecting spacing toes (21) and one of these corner areas is constructed, in deviation from the other corner areas, as a locating corner (22).
Claim 7
Dependent Claim
78 words
A switching element as claimed in one of claims 1 to 5, wherein the wiring arrangement contains a diode (D 1 ) which is connected in the direction of current conduction and which is built into a feed-through conductor path (E 1 -A 1 ), and a further diode (D 2 ) which connects the positive pole of the battery (B) after the first diode (D 1 ) to the feed-through conductor path (E 1 -A 1 ).
Claim 8
Dependent Claim
74 words
A switching element as claimed in one of claims 1 to 5, wherein the wiring arrangement contains a diode (D1), which is connected in the direction of current conduction and which is built into a feed-through conductor path (E 1 .1 -A 1 .1) and a transistor (Tr) which connects the positive pole of the battery (B) after the diode (D 1 ) to the feed-through conductor path (E 1 .1 -A 1 .1).
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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |