Flexible handle for percussive tool with improved vertebra membe

Details Flexible handle for percussive tool with improved vertebra membe Flexible handle for percussive tool with improved vertebra membe

1980-06-09

1981-05-12

Simpson, Othell M.

Bridges

145 29B, 145 29R, 145 36, 145 61M, B25G 100

Patent

active

042665884

ABSTRACT:
A hammer of the type that includes a column of vertebra members is made of vertebra members having mating upper and lower abutment surfaces. Parts of adjacent abutment surfaces are mating concave and convex surfaces that slide across each other during pivoting in one direction so that the length of the shaft passage through the vertebra members is not increased during flexing of the hammer. Another portion of each abutment surface requires lengthening of the shaft passage if the vertebrae are to pivot in the other direction. Consequently, a shaft extending through the shaft passage and fixed at its upper and lower ends to the head and handle, respectively, prevents flexing in one direction but not in the other. Furthermore, the overwhelming majority of the resistance to flexing is provided by the shaft, not by interference between vertebra members, so the shaft size for a given resistance to flexing can be relatively large.

REFERENCES:
patent: 31997 (1861-04-01), Phillips
patent: 281217 (1883-07-01), Wiedman
patent: 861659 (1907-07-01), Johnston
patent: 1033171 (1912-07-01), Higgs
patent: 1075108 (1913-10-01), Keller
patent: 1515708 (1924-11-01), Stolle
patent: 1601520 (1926-09-01), Forbes
patent: 1794008 (1931-02-01), Forbes
patent: 2337440 (1943-12-01), Arrowood
patent: 2603260 (1952-07-01), Floren
patent: 2741456 (1956-04-01), Williams
patent: 2757694 (1956-08-01), Curtis
patent: 2781805 (1957-02-01), Freeman
patent: 2809684 (1957-10-01), Lyon
patent: 2837381 (1958-06-01), Sarlandt
patent: 2940492 (1960-06-01), Curry
patent: 3208724 (1965-09-01), Vaughan
patent: 3341261 (1967-09-01), Fenlin
patent: 3385334 (1968-05-01), Clay
patent: 3613753 (1971-10-01), Wolf
patent: 4039012 (1977-08-01), Cook
patent: 4089356 (1978-05-01), O'Connor
patent: 4096895 (1978-06-01), Fernitz

Affiliated with

Also associated with

Rating

Flexible handle for percussive tool with improved vertebra membe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible handle for percussive tool with improved vertebra membe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible handle for percussive tool with improved vertebra membe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2041415