Electric heating – Heating devices – Combined with diverse-type art device
Patent
1978-11-01
1980-12-30
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
1231425E, 219318, 219336, 220235, 220243, 220248, H05B 302, F02N 1706
Patent
active
042425646
ABSTRACT:
A frost plug immersion heater has improved clamping structure which comprises a clamp element having a base engageable against the inner end of the heater body and a pair of channel-shaped clamping arms narrower than the base extending in splayed relation from opposite sides of the base, with the free ends of the arms initially close enough together so that the heater can be installed straight into a cylinder block core plug hole. A T-shape bolt has a cross arm bar-shaped head which has opposite ends engaging in the arm channels and spreads the clamp arms when a nut threaded on the outer end portion of the bolt shank is tightened against the outer end of the heater body. The cross arm head has a thickened crown area of maximum mass providing a maximum strength portion aligned with the shank of the bolt and the top of the cross arm tapers with diminished mass toward the opposite ends thereof to provide a truss-like reinfocement for the head when force is applied through the bolt shank as the nut is tightened.
REFERENCES:
patent: 682045 (1901-09-01), De Carlo
patent: 1094911 (1914-04-01), Lautenbacher et al.
patent: 2037347 (1936-04-01), Shoop
patent: 2367909 (1945-01-01), Wanner
patent: 2579845 (1951-12-01), McWherter
patent: 2987283 (1961-06-01), Bleckmann
patent: 3646314 (1972-02-01), Windsor
patent: 3766356 (1973-10-01), Feldmann
Bartis A.
Budd Canada Inc.
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