Hammers

	PAT. NO.	Title
1351	3,999,420	Lens impact hammer apparatus and methods
1352	D242,871	Hammer piston for valveless pneumatic impact device
1353	3,998,278	Hammer drill
1354	3,998,154	Hammer assembly for use in impact printers
1355	3,998,152	Protection system for hammer drive circuits in impact printers
1356	D242,649	Casing and support construction for a hammer mill
1357	3,994,218	Energy absorbing print hammer bumper with internal stabilizer
1358	3,991,833	Pile hammer cushion apparatus
1359	3,988,963	Safety device which arrests the hammer and blocks the sight
1360	3,987,828	Hammer
1361	3,984,504	Method and apparatus for preventing water hammer in high pressure steam injection water heaters
1362	3,983,806	Hammer bank assembly
1363	3,973,633	Hammer device
1364	3,968,744	Self-damping unitary print hammer for high speed printers
1365	3,967,688	Fuel injection device for an impact atomization-type diesel pile hammer
1366	3,967,551	Print mechanism with rockable interposing lever for print hammer
1367	3,967,521	Hammer for pianos and similar instruments
1368	3,963,966	Hammer for a piezoelectric igniter
1369	3,962,809	Hand gun hammer block
1370	3,961,672	Impact hammer post driver
1371	3,961,519	Hammer for sheet metal
1372	3,960,074	Line printer having hammer which spans three print positions
1373	3,958,645	Bore hole air hammer
1374	3,955,628	Hammer drill
1375	3,952,398	Process for pneumatically impelling a hammer to drive a nail into a substrate
1376	3,948,077	Forging press with independent hammer-position adjustment and overload protector
1377	3,946,952	Hammer mills
1378	3,945,237	High speed hammer forging machines
1379	3,944,003	Bore hole air hammer
1380	3,943,782	Power hammer
1381	3,942,567	Cast aluminum alloy hammer
1382	3,942,549	Water hammer arrestor
1383	3,941,196	Percussive air hammer and core bit apparatus
1384	3,941,052	Print hammer apparatus with angularly disposed mating hammer and pole faces to prevent contact bounce
1385	3,939,922	Hydraulic hammer assembly
1386	3,939,921	Method and device for damping the movement of a hammer piston
1387	3,938,427	Percussion hammer
1388	3,935,813	Print hammer device
1389	3,934,656	Automatic hydraulic hammer
1390	3,931,744	Hammer-drill
1391	3,930,525	Soft nose hammer and manufacture thereof

17	Hammer head having removable weight components
18	Slide hammer chimney cleaner
19	Hammer head for a hammer
20	Capped disc for hammer mill rotor
21	Printing apparatus controlling advancement of printing paper, actuation of a hammer, and advancement of an ink ribbon
22	Tool and chuck for hammer drill
23	Automatic drive hammer system
24	Hammer game
25	Hammer drill with a lockable tool holder
26	Shredder hammer
27	Motor-driven portable hammer
28	Lens impact hammer apparatus and methods
29	Hammer hanger
30	Down-the-hole drill hammer
31	Hammer
32	Hammer