Patent DE2734591A1 successfully refreshed from Google Patents.
DE2734591A1
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Toy car flashing lamp circuit - has two transistor astable multivibrator and collector for amplifier connected to light diode
Assignee: Individual
•
Filing: 1977-08-01
•
Granted: —
•
Expires: 1997-08-01
Abstract
Abstract A toy car travelling along a track, has a warning lamp mounted on the roof. This lamp is mounted on a circuit board so as to project through the roof. It is operated by a circuit so as to give a flashing light. The circuit includes an astable multivibrator with two transistors (Tr1, Tr2) which gives it the frequency of the flash. This is determined by a resistance capacity network (C1, C2, R2, R4). The collector of Tr2 is connected by a resistance (R6) to the amplifier transistor (Tr3). This operates the light diode (LD1). A resistor (R5) and a capacitor (C3) stabilise the voltage.
Inventors
- 👤 Hermann Dr Neuhierl
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.