Electric heating – Heating devices – Combined with diverse-type art device
Patent
1974-07-01
1976-03-23
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
101 9, 101 27, 101 31, 219221, 219228, 219521, H05B 100, H05B 300, B44B 500
Patent
active
039461955
ABSTRACT:
A tennis ball marker which has no moving parts in operation and in which a plurality of removable and interchangeable heating imprint modules are mounted in a housing containing an electric circuit for controlling the supply of power from a source to heat the imprint modules. The imprint modules comprise a ceramic body having an electric heating element embedded therein. The top surface of the ceramic body provides raised portions in the shape of letters or other identifying indicia which are seared onto the surface of a tennis ball placed in contact therewith. The imprint modules are readily interchangeable and are removably plugged into electrical receptacles in the housing to permit the identifying indicia to be readily changed. The housing includes window means through which the imprint modules are exposed. The window is of such size and shape as to receive and position the ball to be marked and to limit the depth that the ball can be inserted into the housing so that the indicia are seared onto the ball to a uniform desired depth.
REFERENCES:
patent: 1625009 (1927-04-01), Whited
patent: 1850280 (1932-03-01), Haynes
patent: 1872730 (1932-08-01), Goldfisch
patent: 1905364 (1933-04-01), Brindley
patent: 1981808 (1934-11-01), Maranville
patent: 2002847 (1935-05-01), Atti
patent: 2047373 (1936-07-01), Kingsley
patent: 2138350 (1938-11-01), McChesney
patent: 2231766 (1941-02-01), Leibowitz
patent: 2248207 (1941-07-01), Tedder
Chandler William R.
Lyons Dianne D.
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