Electric lamp having a mechanically connected lamp cap

Details Electric lamp having a mechanically connected lamp cap Electric lamp having a mechanically connected lamp cap

1982-05-10

1985-01-29

Chatmon, Saxfield

Electric lamp and discharge devices

With envelope

Having base and connector

313315, 339145R, H01J 548, H01J 550

Patent

active

044968744

ABSTRACT:
In a lamp according to the invention the use of cement for connecting the lamp cap (4) has been avoided by using a split metal ring (8). The neck-shaped lamp envelope portion (2) has recesses (13) in which projecting parts (12) of the ring (8) engage. The ring (8) has lugs (14) which at least initially press against the lower edge (3) of the neck-shaped lamp envelope portion (2). The ring (8) is secured to the lamp cap (4). During assembly of the lamp cap (4) the lugs (14) are deformed. A resilient force thereby induced in said lugs pulls the ring (8) in a direction opposite to the direction in which the lamp cap (4) was moved. As soon as the ring (9) is secured to the lamp cap (4), the resilience in the lugs (14) is of no further significance.

REFERENCES:
patent: 645266 (1900-03-01), Kremenezky
patent: 961326 (1914-06-01), Turner
patent: 1813572 (1931-07-01), Gustin
patent: 2028884 (1936-01-01), Thomas
patent: 2692154 (1954-10-01), Wigan
patent: 3173735 (1965-03-01), Fenn
patent: 3215972 (1965-11-01), Eriksson
patent: 3356984 (1967-12-01), Thorington et al.
patent: 3885185 (1975-05-01), Tilley
patent: 4396860 (1983-08-01), Hellwig et al.
patent: 4405877 (1983-09-01), Haraden et al.

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