Ultrasonic load indicating member

Details Ultrasonic load indicating member Ultrasonic load indicating member

1987-09-11

1989-07-11

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Threaded fastener stress

310322, F16B 3102

Patent

active

048460010

ABSTRACT:
A method of measuring the load in a member subjected to longitudinal stress, a load measuring device and a fastener tightening device using the method of measuring, a load indicating member and a load indicating fastener for use in conjunction with the method of measuring, a method of making the load indicating fastener, a method of making the load indicating fastener, a method of tightening the load indicating fastener and a transducer for instrumenting a load bearing member are each disclosed and claimed. A thin piezoelectric sensor consisting of a piezoelectric film sandwiched between two thin electrodes is permanently mechanically and acoustically coupled to the upper surface of a member and is used to determine the length, tensile load, stress, or other tensile load dependant characteristic of the member by ultrasonic techniques.

REFERENCES:
patent: Re30183 (1980-01-01), Popenoe
patent: 2287950 (1942-06-01), Tibbetts
patent: 2379800 (1945-07-01), Hare
patent: 2503141 (1950-04-01), Stone
patent: 2600029 (1952-06-01), Stone
patent: 3201977 (1965-08-01), Kutsay
patent: 3306100 (1967-02-01), Wilheim et al.
patent: 3307393 (1967-03-01), Kessler
patent: 3308476 (1967-03-01), Kleesattel
patent: 3541844 (1970-11-01), Stover III
patent: 3650016 (1972-03-01), McMaster
patent: 3759090 (1973-09-01), McFaul et al.
patent: 3810385 (1974-05-01), McFaul et al.
patent: 3812709 (1974-05-01), Benson et al.
patent: 3812758 (1974-05-01), Bossler, Jr.
patent: 3822587 (1974-07-01), Makino et al.
patent: 3823639 (1974-07-01), Liber
patent: 3908508 (1975-09-01), Payne
patent: 3918294 (1975-11-01), Makino et al.
patent: 3924444 (1975-12-01), Heyman et al.
patent: 3930405 (1976-01-01), Renken, Jr.
patent: 3943819 (1976-03-01), Charron
patent: 3969810 (1976-07-01), Pagano
patent: 3969960 (1976-07-01), Pagano
patent: 3975948 (1976-08-01), Makino et al.
patent: 3987668 (1976-10-01), Popenoe
patent: 4014208 (1977-03-01), Moore et al.
patent: 4015464 (1977-04-01), Miller et al.
patent: 4062227 (1977-12-01), Heyman
patent: 4117731 (1978-10-01), Heyman
patent: 4121467 (1978-10-01), Gerhart
patent: 4127788 (1978-11-01), Daugherty
patent: 4144428 (1979-03-01), Voegelin
patent: 4294122 (1981-10-01), Couchman
patent: 4339683 (1982-07-01), Scott et al.
patent: 4344216 (1982-08-01), Finkelston
patent: 4363242 (1982-12-01), Heyman
patent: 4402222 (1983-09-01), Olson et al.
patent: 4413518 (1983-11-01), Jones
patent: 4423634 (1984-01-01), Audenard et al.
patent: 4445360 (1984-05-01), Treder, Jr.
patent: 4471657 (1984-09-01), Voris et al.
patent: 4565940 (1986-01-01), Hubbard, Jr.
patent: 4567766 (1986-02-01), Seiferling
patent: 4569229 (1985-02-01), de Halleux
patent: 4584676 (1986-04-01), Newman
patent: 4601207 (1986-07-01), Steblay
patent: 4602511 (1986-07-01), Holt
patent: 4633122 (1986-12-01), Radice
patent: 4676109 (1987-06-01), Wallace
Final Report No. AFML-TR-78-138, "Acousto-Elastic Fastener Preload Indicator", by J. C. Couchman.

Affiliated with

Also associated with

Rating

Ultrasonic load indicating member does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic load indicating member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic load indicating member will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-428497