E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/51
E01C 23/08 (2006.01) B28D 1/26 (2006.01)
Patent
CA 1144409
Reciprocated Concrete Surfacer Member With Shielded Spring Return Abstract of the Disclosure A scabbler apparatus having a convention reciprocated rod is provided with a bit secured to a shank member. A com- pression spring is adapted to urge the shank and rod upwardly while motive means is provided to drive the rod, shank and bit toward the surface of concrete, rock and the like and against the bias of the spring. A protective retainer and an exclusionary means is provided. This exclusionary means may be a boot, a wiper ring and with or without a one-way valve means. The compression spring is retained at its lower end by a support shelf, usually an inwardly formed flange of the retainer. A washer or ring engages or is carried by the shank of the bit and engages the top end of the spring to urge the shank, the attached bit and the reciprocated rod upwardly.
377456
Hile James L.
Hird David L.
Langfield Edward R.
Elco International Inc.
Swabey Ogilvy Renault
LandOfFree
Reciprocated concrete surfacer member with shielded spring... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reciprocated concrete surfacer member with shielded spring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocated concrete surfacer member with shielded spring... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-858186