Who invented the torque limiter in this patent?

Joseph F. Steinke and Lloyd C. Erickson, listed as inventors, with attorneys Hofgren, Brady, Wegner, Allen & Stellman.

When was this patent filed and issued?

It was filed January 29, 1959 and issued April 4, 1961.

What do the two figures on this sheet show?

FIG. 1 is a side view of a tractor showing where the torque limiter is installed in the front drive/steering area, and FIG. 2 is a cross-section of the torque limiter assembly itself with numbered parts.

Is this the complete patent?

No. The sheet is marked "2 Sheets-Sheet 1," so it is the first of two drawing sheets, and the written specification is not included.

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US Patent 2,977,779 Torque Limiter Drawing (1961) - Steinke & Erickson, Sheet 1

US Patent 2,977,779 Torque Limiter Steinke 1961 figures 1-2 sheet 1 of 2 tractor

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US Patent 2,977,779 (Torque Limiter, J.F. Steinke et al, granted April 4 1961) drawing sheet 1 of 2 with Fig. 1 showing a tractor application and Fig. 2 the torque-limiter clutch cross-section.

AI caption September 2015 · Photo 2 of 25

This document is Sheet 1 of 2 from United States Patent 2,977,779, titled "Torque Limiter," issued April 4, 1961 to inventors Joseph F. Steinke and Lloyd C. Erickson (filed January 29, 1959; attorneys Hofgren, Brady, Wegner, Allen & Stellman). The sheet contains two patent line drawings. FIG. 1 is a side-elevation view of a farm tractor showing the installation location of the torque limiter device within the front-axle/steering drive linkage area, with numbered callouts (6-23, 38, 42, 50, 51) identifying the wheels, chassis, steering components, and drive shaft. FIG. 2 is a detailed cross-sectional view of the torque limiter mechanism itself, showing a multi-plate clutch-style assembly with interleaved friction plates, springs, shafts, bearings, and housing components identified by reference numerals (21-65), along with section lines 3-3, 4-4, and 5-5 indicating views shown on other sheets. A reader can learn the patent number, filing/issue dates, inventor names, and the general mechanical configuration of this torque-limiting coupling as applied to a tractor, though the descriptive specification text explaining the numbered parts is not on this sheet.

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Frequently asked questions

What is the patent number shown on this document?: United States Patent 2,977,779, titled "Torque Limiter."
Who invented the torque limiter in this patent?: Joseph F. Steinke and Lloyd C. Erickson, listed as inventors, with attorneys Hofgren, Brady, Wegner, Allen & Stellman.
When was this patent filed and issued?: It was filed January 29, 1959 and issued April 4, 1961.
What do the two figures on this sheet show?: FIG. 1 is a side view of a tractor showing where the torque limiter is installed in the front drive/steering area, and FIG. 2 is a cross-section of the torque limiter assembly itself with numbered parts.
Is this the complete patent?: No. The sheet is marked "2 Sheets-Sheet 1," so it is the first of two drawing sheets, and the written specification is not included.