Vibra-Groomer II with Square Ends
- Thread starter paul
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human
Well-known member
@eurekaprince: Thanks for the info on the Sanitaire variant on the Helix brushroll. I didn't realize they had special ones for the Sanitaires, but it makes sense that they would have a specialized version for commercial environments.
History & Patents
The first "Disturbulator" reference I located was in 1939; although no vacuum cleaner model was associated with it. Oddly, however, Eureka waited to trademark the name until 1944.
The only brush roll patent I located around this time was one that appears to be for the Model M "Challenger", invented by Hemrich Rudolph (Filed: 1936, Granted: 1937).
The next patent I located was invented by Kemper M. Hemmel; filed in 1944 and granted in 1950. COLLIER'S weekly magazine carried an ad for a "new motor-driven Disturbulator" in a July 1944 issue (date unspecified), that was presumably Mr. Hemmel's.
Ralph C. Osborn's patent was next - filed in 1947 and granted in 1953. This is the one that was first used in the new Super Automatic Model S-246 and possibly the Deluxe Model D-360 through the early 1970s. Btw, Ralph C. Osborn also invented a motor hood in 1947 that seems to be the one used from 1955 until 1990 and that some of us at VL have dubbed "Classic". George Walker's for the D-360 is a bit different, and no other hood patents were located in that time period.
The Vibra-Groomer debuted in 1971 even though the first of its patents by Harold W. Schaefer & William H. Penn was filed in 1970 and granted in 1971; typically US production begins the same year as the filing (I found no ads or other media references of it until 1971); their second patent, filed in 1971 and granted in 1972, regards removable brush strips. The revised Disturbulator with beater bars also appeared that year; no patent was located for it, so I conclude that it was covered under the V-G's.
Mr. Schaefer also patented the beater "bumps" for the Vibra-Groomer II (filed: 1978, granted: 1980).
Clark S. Richmond and David A. Erickson invented the Vibra-Groomer III and filed for its patent eight years later, and it was granted in 1988.
Photos:
1. 1939 Feb 28 MERIDEN RECORD - Eureka article - new Disturbulator and enclosed motor
2. Hemrich Rudolph's Brush Assembly patent
3. 1944 "Disturbulator" trademark - furm.com
4. Kemper M. Hemmel's Rotary Agitator patent
5. COLLIER'S - Vol. 114, p. 80 (July 1944 referenced on second page) - citation mentions new Eureka Disturbulator
6. Ralph C. Osborn's Rotary Brush patent (expired in 1970)
7-8. Harold W. Schaefer & William H. Penn's Vibra-Groomer patents
9. Model-Type 238-FB ad - Disturbulator and beater bar action
10. Harold W. Schaefer's Brush Beater for a Vacuum Cleaner (V-G II) patent
11. Clark Richmond & David Erickson's Motor-Driven Brush Assembly (V-G III) patent
The first "Disturbulator" reference I located was in 1939; although no vacuum cleaner model was associated with it. Oddly, however, Eureka waited to trademark the name until 1944.
The only brush roll patent I located around this time was one that appears to be for the Model M "Challenger", invented by Hemrich Rudolph (Filed: 1936, Granted: 1937).
The next patent I located was invented by Kemper M. Hemmel; filed in 1944 and granted in 1950. COLLIER'S weekly magazine carried an ad for a "new motor-driven Disturbulator" in a July 1944 issue (date unspecified), that was presumably Mr. Hemmel's.
Ralph C. Osborn's patent was next - filed in 1947 and granted in 1953. This is the one that was first used in the new Super Automatic Model S-246 and possibly the Deluxe Model D-360 through the early 1970s. Btw, Ralph C. Osborn also invented a motor hood in 1947 that seems to be the one used from 1955 until 1990 and that some of us at VL have dubbed "Classic". George Walker's for the D-360 is a bit different, and no other hood patents were located in that time period.
The Vibra-Groomer debuted in 1971 even though the first of its patents by Harold W. Schaefer & William H. Penn was filed in 1970 and granted in 1971; typically US production begins the same year as the filing (I found no ads or other media references of it until 1971); their second patent, filed in 1971 and granted in 1972, regards removable brush strips. The revised Disturbulator with beater bars also appeared that year; no patent was located for it, so I conclude that it was covered under the V-G's.
Mr. Schaefer also patented the beater "bumps" for the Vibra-Groomer II (filed: 1978, granted: 1980).
Clark S. Richmond and David A. Erickson invented the Vibra-Groomer III and filed for its patent eight years later, and it was granted in 1988.
Photos:
1. 1939 Feb 28 MERIDEN RECORD - Eureka article - new Disturbulator and enclosed motor
2. Hemrich Rudolph's Brush Assembly patent
3. 1944 "Disturbulator" trademark - furm.com
4. Kemper M. Hemmel's Rotary Agitator patent
5. COLLIER'S - Vol. 114, p. 80 (July 1944 referenced on second page) - citation mentions new Eureka Disturbulator
6. Ralph C. Osborn's Rotary Brush patent (expired in 1970)
7-8. Harold W. Schaefer & William H. Penn's Vibra-Groomer patents
9. Model-Type 238-FB ad - Disturbulator and beater bar action
10. Harold W. Schaefer's Brush Beater for a Vacuum Cleaner (V-G II) patent
11. Clark Richmond & David Erickson's Motor-Driven Brush Assembly (V-G III) patent
2011hoover700
Well-known member
Hi everyone,I'm personally looking for a vibra groomer with square ends.
Thanks
Thanks
Re: Replies #3 & #8
Looks like you were correct, Brian & Kenny. I only hedge, because of Eureka's affinity for variety—ha. For example, Kenny, I wouldn't be surprised if the last Automatic upright, circa 1978, and other budget model-types were still being made with the square end fittings.
Here's the hex end patent (filed/first produced in 1975; granted in 1977):
So the hex end hood fittings would have been produced after the Queen Anne Gold and Moss Green line of the 2000 Series. Brian, the 1425 is the one you recall with the hex-end beater-brush roll due to its later debut.
Looks like you were correct, Brian & Kenny. I only hedge, because of Eureka's affinity for variety—ha. For example, Kenny, I wouldn't be surprised if the last Automatic upright, circa 1978, and other budget model-types were still being made with the square end fittings.
Here's the hex end patent (filed/first produced in 1975; granted in 1977):
So the hex end hood fittings would have been produced after the Queen Anne Gold and Moss Green line of the 2000 Series. Brian, the 1425 is the one you recall with the hex-end beater-brush roll due to its later debut.
