U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Tape measure

Patent 4439927 Issued on April 3, 1984. Estimated Expiration Date: Icon_subject January 13, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2536766

2624120

3063157

3336678

3731389

3802083

Brake Patent #: 4293058
Issued on: 10/06/1981
Inventor: Burton

Inventor

Application

No. 06/457620 filed on 01/13/1983

US Classes:

33/668, For windup tape or tape casing, or marker attachment for tape33/760Combined

Examiners

Primary: Little, Willis

Attorney, Agent or Firm

International Classes

G01B 3/10 (20060101)
G01B 3/02 (20060101)

Abstract

A tape measuring device including an outer casing and a coiled metal tape disposed within the casing which may be retracted or withdrawn through a slot in the front of the casing. In addition, a consumable marker and a scriber are disposed within the casing immediately forward of and along side of the slot through which the coiled tape is withdrawn. Either the consumable marker or the scriber may be positioned via manual actuating means to mark an object being measured at a preselected point along the length of the extended tape. Braking means are disposed within the casing which, when actuated, engage the tape and lock it into position relative to the casing. The braking mechanism is automatically activated when either the consumable marker or the scriber is positioned for marking the object being measured. In addition, the braking means may be activated without marking or engraving the object being measured. A plurality of feed segments disposed within the casing operate to insure that the marker continues to contact the workpiece even though its length is diminished over a period of usage.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?