Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Luggage-type
Patent
1976-09-20
1977-09-20
Krizmanich, George H.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Luggage-type
279 1Q, 279 4, 242 682, A47J 4508, B25G 112
Patent
active
RE0294020
ABSTRACT:
A vibration isolating and heat insulating hand grip for use with hand held pneumatic chisels and similar pneumatic hand tools. A manually grippable rigid sleeve is slidably mounted on a housing member which surrounds a rigid, tubular shell to define an annular cavity. Internally secured to the shell is a compliant, non-porous sleeve, the shell and the sleeve defining an inflatable annular chamber. A bladder confined between the housing and the shell communicates with the inflatable annular chamber so that movement of fluid back and forth between the bladder and the chamber causes the compliant sleeve to grip or release a tool shank. Such movement of fluid is caused by an annulus internally mounted on the rigid, slidable sleeve in alignment with the bladder.
REFERENCES:
patent: 2697563 (1954-12-01), Miller
patent: 3677559 (1972-07-01), Andre et al.
patent: 3679219 (1972-07-01), Cameron
Smith, K. M.: Undesirable Effects of Vibrating Tools on Industrial Workers, pp. 22-27, Trans. Bull. No. 14, Chem. Eng. Conf., 14th Annual Meeting, Nov. 16, 1949, Industrial Hygiene Foundation of America Inc.
Caterpillar Tractor Co.
Krizmanich George H.
Muir Robert E.
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